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Pulmonx Corporation
(NASDAQ:LUNG) 

LUNG stock logo

Pulmonx Corporation, a medical technology company, designs, develops, manufactures, and markets minimally invasive medical devices for the diagnosis and treatment of chronic obstructive pulmonary diseases. It offers Zephyr Endobronchial Valve, a solution for the treatment of bronchoscopic in adult p...

Founded: 1995
Full Time Employees: 180
CEO: Glendon E. French  
Sector: Other
Industry: Other
Medical Devices
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At a glance:
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Quarterly
Annual
    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 
                         
      revenue
    		20,586,000 22,598,000 21,502,000 23,859,000 22,538,000 23,765,000 20,387,000 20,783,000 17,668,000 17,194,000 14,535,000 15,425,000 13,502,000 13,950,000 10,785,000 13,708,000 13,261,000 12,203,000 9,244,000 9,830,000 10,612,000 
      yoy
    		-8.66% -4.91% 5.47% 14.80% 27.56% 38.22% 40.26% 34.74% 30.85% 23.25% 34.77% 12.53% 1.82% 14.32% 16.67% 39.45% 24.96%     
      qoq
    		-8.90% 5.10% -9.88% 5.86% -5.16% 16.57% -1.91% 17.63% 2.76% 18.29% -5.77% 14.24% -3.21% 29.35% -21.32% 3.37% 8.67% 32.01% -5.96% -7.37%  
      cost of goods sold
    		4,542,000 5,057,000 5,450,000 6,655,000 6,196,000 6,175,000 5,361,000 5,476,000 4,639,000 4,460,000 3,946,000 4,241,000 3,350,000 3,532,000 2,674,000 3,457,000 3,522,000 3,174,000 2,633,000 2,752,000 3,150,000 
      gross profit
    		16,044,000 17,541,000 16,052,000 17,204,000 16,342,000 17,590,000 15,026,000 15,307,000 13,029,000 12,734,000 10,589,000 11,184,000 10,152,000 10,418,000 8,111,000 10,251,000 9,739,000 9,029,000 6,611,000 7,078,000 7,462,000 
      yoy
    		-1.82% -0.28% 6.83% 12.39% 25.43% 38.13% 41.90% 36.87% 28.34% 22.23% 30.55% 9.10% 4.24% 15.38% 22.69% 44.83% 30.51%     
      qoq
    		-8.53% 9.28% -6.70% 5.27% -7.09% 17.06% -1.84% 17.48% 2.32% 20.26% -5.32% 10.17% -2.55% 28.44% -20.88% 5.26% 7.86% 36.58% -6.60% -5.15%  
      gross margin %
    		77.94% 77.62% 74.65% 72.11% 72.51% 74.02% 73.70% 73.65% 73.74% 74.06% 72.85% 72.51% 75.19% 74.68% 75.21% 74.78% 73.44% 73.99% 71.52% 72.00% 70.32% 
      operating expenses
    		                     
      research and development
    		4,899,000 4,583,000 4,846,000 5,306,000 4,756,000 4,001,000 3,744,000 5,615,000 4,220,000 5,710,000 4,253,000 3,903,000 4,366,000 3,594,000 3,534,000 3,708,000 2,815,000 3,506,000 3,034,000 2,472,000 1,997,000 
      selling, general and administrative
    		24,101,000 22,861,000 25,599,000 26,702,000 26,149,000 27,006,000 25,411,000 25,314,000 23,985,000 23,463,000 22,736,000 21,908,000 19,717,000 21,235,000 20,245,000 18,909,000 16,686,000 17,620,000 15,604,000 13,960,000 10,813,000 
      total operating expenses
    		29,000,000 27,444,000 30,445,000 32,008,000 30,905,000 31,007,000 29,155,000 30,929,000 28,205,000 29,173,000 26,989,000 25,811,000 24,083,000 24,829,000 23,779,000 22,617,000 19,501,000 21,126,000 18,638,000 16,432,000 12,810,000 
      income from operations
    		-12,956,000 -9,903,000 -14,393,000 -14,804,000 -14,563,000 -13,417,000 -14,129,000 -15,622,000 -15,176,000 -16,439,000 -16,400,000 -14,627,000 -13,931,000 -14,411,000 -15,668,000 -12,366,000 -9,762,000 -12,097,000 -12,027,000 -9,354,000 -5,348,000 
      yoy
    		-11.03% -26.19% 1.87% -5.24% -4.04% -18.38% -13.85% 6.80% 8.94% 14.07% 4.67% 18.28% 42.71% 19.13% 30.27% 32.20% 82.54%     
      qoq
    		30.83% -31.20% -2.78% 1.65% 8.54% -5.04% -9.56% 2.94% -7.68% 0.24% 12.12% 5.00% -3.33% -8.02% 26.70% 26.67% -19.30% 0.58% 28.58% 74.91%  
      operating margin %
    		-62.94% -43.82% -66.94% -62.05% -64.62% -56.46% -69.30% -75.17% -85.90% -95.61% -112.83% -94.83% -103.18% -103.30% -145.28% -90.21% -73.61% -99.13% -130.11% -95.16% -50.40% 
      interest income
    		350,000 453,000 611,000 723,000 864,000 1,045,000 1,269,000 1,306,000 1,490,000 1,410,000 1,127,000 748,000 477,000 199,000 105,000 94,000 99,000 102,000 105,000 115,000 9,000 
      interest expense
    		-976,000 -770,000 -805,000 -799,000 -781,000 -842,000 -891,000 -891,000 -893,000 -864,000 -571,000 -359,000 -286,000 -223,000 -198,000 -199,000 -207,000 -206,000 -217,000 -267,000 -1,103,000 
      other income
    		77,000 -19,000 758,000 -116,000 167,000 77,000 -201,000 -35,000 -262,000 -162,000 108,000 201,000 -432,000 -165,000  -383,000 -267,000 -96,000 161,000 230,000 2,631,000 
      net loss before tax
    		-13,505,000 -10,239,000 -13,829,000 -14,996,000 -14,313,000 -13,137,000 -13,952,000 -15,242,000 -14,841,000 -16,055,000 -15,736,000 -14,037,000 -14,172,000 -14,600,000 -15,761,000 -12,854,000 -10,137,000 -12,297,000 -11,978,000 -9,276,000 -3,811,000 
      income tax expense
    		149,000 186,000 128,000 177,000 135,000 38,000 192,000 84,000 59,000 140,000 124,000 246,000  40,000 67,000 152,000 44,000 80,000 67,000 21,000 49,000 
      net income
    		-13,654,000 -10,425,000 -13,957,000 -15,173,000 -14,448,000 -13,175,000 -14,144,000 -15,326,000 -14,900,000 -16,195,000 -15,860,000 -14,283,000 -14,172,000 -14,640,000 -15,828,000 -13,006,000 -10,181,000 -12,377,000 -12,045,000 -9,297,000 -3,860,000 
      yoy
    		-5.50% -20.87% -1.32% -1.00% -3.03% -18.65% -10.82% 7.30% 5.14% 10.62% 0.20% 9.82% 39.20% 18.28% 31.41% 39.89% 163.76%     
      qoq
    		30.97% -25.31% -8.01% 5.02% 9.66% -6.85% -7.71% 2.86% -8.00% 2.11% 11.04% 0.78% -3.20% -7.51% 21.70% 27.75% -17.74% 2.76% 29.56% 140.85%  
      net income margin %
    		-66.33% -46.13% -64.91% -63.59% -64.11% -55.44% -69.38% -73.74% -84.33% -94.19% -109.12% -92.60% -104.96% -104.95% -146.76% -94.88% -76.77% -101.43% -130.30% -94.58% -36.37% 
      other comprehensive income
    		                     
      currency translation adjustment
    		-191,000 122,000 -399,000 435,000 111,000 -369,000 412,000 40,000 -12,000 170,000 72,000 49,000 119,000 6,000 -24,000 192,000 65,000 66,000 -272,000 37,000 33,000 
      change in unrealized losses on marketable securities
    		   -1,000 -22,000          -245,000   3,000 -3,000   
      total other comprehensive income
    		-191,000 122,000 -398,000 434,000 89,000 -421,000 561,000 10,000 -12,000 136,000 245,000 178,000 40,000 -86,000 -269,000 168,000 65,000 69,000 -275,000 37,000 33,000 
      comprehensive loss
    		-13,845,000 -10,303,000 -14,355,000 -14,739,000 -14,359,000 -13,596,000 -13,583,000 -15,316,000 -14,912,000 -16,059,000 -15,615,000 -14,105,000 -14,132,000 -14,726,000 -16,097,000 -12,838,000 -10,116,000 -12,308,000 -12,320,000 -9,260,000 -3,827,000 
      net income per share
    		-0.33 -0.25 -0.34 -0.38 -0.36 -0.33 -0.36 -0.39 -0.39 -0.43 -0.42 -0.38 -0.38 -0.4 -0.43 -0.36 -0.28 -0.34 -0.34 7.17 -1.37 
      weighted-average shares used for eps calculation
    		41,897,669 40,685,934 40,936,896 40,429,655 39,954,658 39,111,073 39,276,447 38,943,066 38,119,824 37,818,256 37,572,382 37,096,541 37,190,352 37,003,443 36,805,366 36,129,409 36,449,399 36,042,614 35,370,760 10,184,841 2,814,798 
      change in unrealized gains on marketable securities
    		 -5,500 1,000   -52,000 149,000 -30,000              
      change in unrealized gain on marketable securities
    		         -34,000 173,000   -92,000        
      change in unrealized loss on marketable securities
    		           -104,000 -79,000         
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 
                           
        assets
      		                     
        current assets
      		                     
        cash and cash equivalents
      		61,572,000 69,751,000 76,549,000 75,466,000 74,555,000 70,905,000 63,312,000 63,464,000 94,945,000 101,581,000 110,407,000 101,736,000 112,402,000 121,947,000 129,168,000 148,480,000 188,075,000 198,703,000 209,283,000 231,561,000 39,806,000 
        restricted cash
      		257,000 258,000 261,000 259,000 257,000 257,000 258,000 257,000 236,000 466,000 231,000 231,000 231,000 231,000 231,000 231,000 231,000 231,000 231,000 231,000 231,000 
        accounts receivable
      		10,830,000 12,072,000 13,797,000 15,903,000 13,975,000 13,120,000 11,670,000 11,080,000 10,091,000 8,941,000 8,171,000 8,677,000 7,221,000 7,521,000 6,810,000 6,562,000 6,919,000 6,884,000 5,119,000 4,228,000 5,260,000 
        inventory
      		16,310,000 15,845,000 16,248,000 16,175,000 16,809,000 16,915,000 16,959,000 16,980,000 16,131,000 15,636,000 15,588,000 14,564,000 15,568,000 19,212,000 18,304,000 16,285,000 14,985,000 13,401,000 11,916,000 10,741,000 9,288,000 
        prepaid expenses and other current assets
      		3,777,000 3,758,000 4,380,000 3,458,000 4,196,000 4,474,000 4,263,000 3,297,000 4,424,000 4,233,000 4,472,000 4,343,000 3,192,000 3,731,000 5,298,000 4,883,000 5,660,000 3,091,000 3,011,000 3,228,000 1,037,000 
        total current assets
      		92,746,000 101,684,000 111,235,000 120,020,000 123,939,000 136,248,000 140,929,000 146,159,000 147,364,000 164,428,000 181,298,000 168,953,000 183,111,000 192,781,000 200,725,000 208,002,000 227,644,000 233,084,000 239,344,000 249,989,000 55,622,000 
        long-term inventory
      		3,819,000 3,604,000 2,474,000 1,892,000 1,376,000 1,681,000 2,266,000 2,300,000 3,445,000 4,434,000 4,774,000 5,283,000 4,559,000         
        property and equipment
      		2,060,000 2,220,000 2,443,000 2,660,000 2,826,000 2,907,000 2,983,000 2,830,000 4,065,000 4,218,000 4,490,000 4,694,000 4,922,000 4,932,000 4,918,000 4,814,000 4,703,000 2,773,000 1,799,000 1,474,000 1,164,000 
        goodwill
      		2,333,000 2,333,000 2,333,000 2,333,000 2,333,000 2,333,000 2,333,000 2,333,000 2,333,000 2,333,000 2,333,000 2,333,000 2,333,000 2,333,000 2,333,000 2,333,000 2,333,000 2,333,000 2,333,000 2,333,000 2,333,000 
        right of use assets
      		17,654,000 18,028,000 18,279,000 18,643,000 18,682,000 18,545,000 18,236,000 18,490,000 4,061,000 4,706,000 5,152,000 5,806,000 6,406,000 6,987,000 7,518,000 8,075,000 8,474,000 7,827,000 8,404,000 8,976,000 9,489,000 
        other long-term assets
      		1,354,000 1,422,000 1,517,000 1,639,000 1,580,000 1,136,000 654,000 515,000 415,000 448,000 465,000 529,000 687,000 796,000 729,000 731,000 558,000 560,000 522,000 536,000 525,000 
        total assets
      		119,966,000 129,291,000 138,281,000 147,187,000 150,736,000 162,850,000 167,401,000 172,627,000 185,016,000 193,113,000 201,272,000 193,676,000 202,203,000 212,729,000 222,849,000 235,173,000 246,818,000 248,940,000 255,270,000 263,708,000 71,244,000 
        liabilities and stockholders’ equity
      		                     
        current liabilities
      		                     
        accounts payable
      		3,474,000 3,905,000 6,420,000 6,557,000 4,280,000 3,827,000 4,576,000 3,181,000 3,189,000 2,377,000 2,890,000 1,758,000 2,648,000 2,599,000 2,803,000 1,582,000 4,434,000 2,156,000 1,826,000 1,472,000 2,297,000 
        accrued liabilities
      		13,728,000 14,556,000 14,936,000 14,388,000 11,547,000 16,472,000 12,779,000 11,783,000 13,684,000 13,562,000 10,632,000 13,276,000 10,744,000 11,734,000 10,872,000 13,366,000 12,374,000 10,499,000 9,756,000 8,651,000 8,844,000 
        income taxes payable
      		329,000 263,000 189,000 205,000 86,000 49,000 74,000 66,000  41,000 60,000 19,000   143,000 147,000  5,000 120,000 94,000 158,000 
        deferred revenue
      		32,000 18,000 92,000 78,000 128,000 135,000 109,000 107,000 85,000 95,000 107,000 120,000 106,000 131,000 132,000 163,000 157,000 85,000 75,000 71,000 92,000 
        short-term debt
      		104,000 106,000 105,000 104,000 7,803,000 3,176,000 99,000 93,000 91,000 93,000 91,000 90,000 5,043,000 2,921,000 798,000       
        current lease liabilities
      		1,239,000 1,210,000 1,136,000 1,115,000 1,101,000 778,000 663,000 1,071,000 3,436,000 3,353,000 3,299,000 3,229,000 3,145,000 3,061,000 2,967,000 2,201,000 1,946,000 1,692,000 1,774,000 2,238,000 1,927,000 
        total current liabilities
      		18,906,000 20,058,000 22,878,000 22,447,000 24,945,000 24,437,000 18,300,000 16,301,000 20,485,000 19,521,000 17,079,000 18,492,000 21,686,000 20,446,000 17,715,000 17,550,000 22,217,000 16,326,000 14,023,000 12,526,000 15,174,000 
        deferred tax liability
      		72,000 69,000 47,000 41,000 79,000 87,000 129,000 118,000 97,000 94,000 71,000 94,000 51,000 47,000 53,000 37,000 70,000 71,000 71,000 62,000 54,000 
        long-term lease liabilities
      		17,741,000 18,059,000 18,298,000 18,598,000 18,652,000 18,515,000 17,910,000 17,914,000 1,537,000 2,399,000 3,015,000 3,849,000 4,644,000 5,415,000 6,128,000 6,844,000 7,440,000 7,141,000 7,700,000 7,618,000 8,250,000 
        long-term debt
      		37,209,000 36,989,000 37,025,000 37,011,000 29,393,000 34,002,000 37,137,000 37,110,000 37,154,000 37,147,000 37,173,000 17,234,000 12,340,000 14,460,000 16,629,000       
        common stock warrant liability
      		277,000                     
        total liabilities
      		74,205,000 75,175,000 78,248,000 78,097,000 73,069,000 77,041,000 73,476,000 71,443,000 59,273,000 59,161,000 57,338,000 39,669,000 38,721,000 40,547,000 40,704,000 41,934,000 43,990,000 39,020,000 38,655,000 37,574,000 70,534,000 
        commitments and contingencies
      		                     
        stockholders’ equity
      		                     
        short-term marketable securities
      		   8,759,000 14,147,000 30,577,000 44,467,000 51,081,000 21,537,000 33,571,000 42,429,000 39,402,000 44,497,000 40,139,000 40,914,000 31,561,000 11,774,000 10,774,000 9,784,000   
        preferred stock, 0.001 par value...
      		                     
        common stock, 0.001 par value...
      		 42,000    40,000      38,000   37,000 37,000      
        additional paid-in capital
      		 573,272,000    551,211,000      502,712,000   487,888,000 482,885,000      
        accumulated other comprehensive income
      		 2,360,000    2,113,000      1,575,000   1,443,000 1,712,000      
        accumulated deficit
      		 -521,558,000    -467,555,000      -350,318,000   -307,223,000 -291,395,000      
        total stockholders’ equity
      		 54,116,000    85,809,000      154,007,000   182,145,000 193,239,000      
        total liabilities and stockholders’ equity
      		 129,291,000    162,850,000      193,676,000   222,849,000 235,173,000      
        long-term marketable securities
      		        23,271,000 12,454,000 2,637,000 5,924,000  4,684,000 6,379,000 10,941,000 2,798,000 2,024,000 2,498,000   
        intangible assets
      		        62,000 92,000 123,000 154,000 185,000 216,000 247,000 277,000 308,000 339,000 370,000 400,000 431,000 
        other long-term liabilities
      		             179,000 179,000 179,000 179,000     
        credit agreement, current
      		               91,000      
        credit agreement
      		               455,000  544,000 532,000 564,000 539,000 
        term loan
      		               16,869,000 13,547,000 14,938,000 16,329,000 16,804,000 16,763,000 
        liabilities, preferred stock and stockholders’ equity
      		                     
        term loan, current
      		                3,306,000 1,889,000 472,000   
        credit arrangement
      		                537,000     
        deferred offering costs
      		                    1,680,000 
        liabilities, convertible preferred stock and stockholders’ equity
      		                     
        derivative liability
      		                     
        convertible preferred stock, 0.001 par value...
      		                     
        liabilities, convertible preferred stock and stockholders’ deficit
      		                     
        derivative liabilities
      		                    1,856,000 
        convertible notes
      		                    29,754,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 
                           
          cash flows from operating activities
        		                   
          net loss
        		-13,654,000 -10,425,000 -13,957,000 -15,173,000 -14,448,000 -13,175,000 -14,144,000 -14,900,000 -16,195,000 -15,860,000 -14,283,000 -14,172,000 -14,640,000 -15,828,000 -13,006,000 -11,233,000   -9,297,000 
          adjustments to reconcile net loss to net cash from operating activities
        		                   
          stock-based compensation expense
        		4,136,000 4,241,000 5,166,000 6,214,000 5,612,000 5,523,000 5,839,000 6,003,000 5,862,000 4,638,000 4,247,000 4,302,000 4,383,000 3,513,000 5,351,000 599,000 2,312,000 2,268,000 2,311,000 
          inventory write-down (recovery)
        		144,000 167,000 72,000 -50,000 -46,000               
          depreciation and amortization expense
        		220,000 231,000 246,000 299,000 278,000 294,000 376,000 415,000 409,000 437,000 386,000 383,000 376,000 368,000 374,000 206,000 146,000 141,000 128,000 
          loss on debt extinguishment
        		107,000                   
          amortization of debt discount and debt issuance costs
        		46,000 15,000 14,000 13,000 11,000 11,000 11,000 13,000 12,000 10,000 10,000 14,000 14,000 18,000 17,000 25,000 25,000 39,000 67,000 
          pik interest incurred but not paid on term loan
        		67,000                   
          net accretion of discounts on marketable securities
        		 0 -40,000 -133,000 -206,000 -340,000 -405,000             
          non-cash lease expense
        		415,000 368,000 465,000 255,000 360,000 333,000 300,000 673,000 670,000 654,000 639,000 633,000 612,000 614,000 594,000 617,000 577,000 572,000 512,000 
          net changes in operating assets and liabilities:
        		                   
          accounts receivable
        		1,204,000 1,606,000 1,410,000 -1,220,000 -721,000 -1,741,000 -359,000 -1,158,000 -715,000 531,000 -1,284,000 167,000 -796,000 -277,000 387,000 -87,000 -1,718,000 -1,014,000 1,121,000 
          inventory
        		-959,000 -810,000 -1,021,000 660,000 406,000 -153,000 596,000 -164,000 337,000 -604,000 536,000 -1,144,000 -1,009,000 -2,021,000 -1,452,000 -1,881,000 -1,495,000 -1,630,000 -1,103,000 
          prepaid expenses and other current assets
        		-29,000 627,000 -913,000 791,000 308,000 -135,000 -923,000 -214,000 193,000 -168,000 -1,018,000 733,000 1,471,000 -406,000 1,185,000 -2,615,000 -188,000 404,000 -2,168,000 
          other assets
        		61,000 95,000 122,000 10,000 -369,000 -497,000 -115,000 13,000 22,000 -5,000   -11,000 17,000 -189,000 -3,000 -37,000 8,000 -6,000 
          accounts payable
        		-430,000 -2,496,000 121,000 2,140,000 505,000 -700,000 1,348,000 1,003,000 -518,000 868,000 -830,000 15,000 -199,000 1,261,000 -2,817,000 2,611,000 -9,000 302,000 758,000 
          accrued liabilities
        		-1,165,000 -443,000 528,000 2,527,000 -4,891,000 3,976,000 732,000 422,000 2,979,000 -2,478,000 2,385,000 -940,000 1,017,000 -2,313,000 1,509,000 1,417,000 599,000 1,275,000 709,000 
          income taxes payable
        		51,000 109,000 -7,000 68,000 24,000 -18,000 2,000 -106,000 -21,000 40,000 134,000 -108,000 -148,000 -2,000 108,000 0 -117,000 30,000 -70,000 
          lease liabilities
        		-329,000 -281,000 -381,000 -256,000 -37,000 78,000 -456,000 -807,000 -785,000 -765,000 -750,000 -740,000 -700,000 -7,000 -668,000 -712,000 -641,000 -496,000 -322,000 
          deferred tax liability
        		4,000              -17,000 0 1,000 10,000 12,000 
          deferred revenue
        		14,000 -73,000 13,000 -53,000 -8,000 29,000 0 -10,000 -13,000 -13,000 11,000 -23,000 1,000 -30,000 4,000 74,000 8,000 8,000 -25,000 
          net cash from operating activities
        		-10,097,000 -7,084,000 -8,162,000 -3,908,000 -13,222,000 -6,730,000 -7,242,000 -8,626,000 -7,891,000 -12,644,000 -9,806,000 -10,687,000 -9,564,000 -15,026,000 -10,711,000 -8,315,000 -12,690,000 -9,672,000 -7,262,000 
          capital expenditures
        		-9,000 0 -89,000 17,000 -292,000 0 -416,000 -492,000 -54,000 408,000 -176,000 -279,000 -299,000 -108,000 -1,148,000 -1,163,000 -661,000 -242,000 -693,000 
          free cash flows
        		-10,106,000 -7,084,000 -8,251,000 -3,891,000 -13,514,000 -6,730,000 -7,658,000 -9,118,000 -7,945,000 -12,236,000 -9,982,000 -10,966,000 -9,863,000 -15,134,000 -11,859,000 -9,478,000 -13,351,000 -9,914,000 -7,955,000 
          cash flows from investing activities
        		                   
          purchases of investments
        		 0 0 -1,730,000 -3,921,000 -1,494,000 -5,583,000 -15,771,000 -12,509,000 -13,115,000 -10,301,000 -14,927,000 -12,651,000 -9,308,000 -30,976,000 -6,294,000 -3,025,000 -12,289,000  
          maturities of investments
        		 0 8,800,000 7,250,000 20,535,000 15,672,000 12,750,000             
          purchases of property and equipment and internal software development costs
        		-9,000  -89,000 -49,000 -301,000  -416,000             
          net cash from investing activities
        		-9,000 -13,000 8,711,000 5,471,000 16,313,000 14,067,000 6,751,000 987,000 -813,000 574,000 -727,000 44,000 2,080,000 -5,622,000 -29,124,000 -3,414,000 -1,186,000 -12,531,000 -693,000 
          cash flows from financing activities
        		                   
          repayment of debt
        		-37,000,000                   
          proceeds from debt
        		38,785,000                   
          proceeds from exercise of common stock options
        		40,000 106,000 5,000 28,000 110,000 110,000 28,000 63,000 139,000 44,000 190,000 72,000 175,000 207,000 150,000 340,000 1,312,000 69,000 -17,000 
          proceeds from issuance of common stock under the employee stock purchase plan
        		201,000 0 200,000 0 554,000 1,000 431,000 508,000 0 676,000 0 834,000 0 1,108,000 0 660,000    
          net cash from financing activities
        		2,026,000 55,000 181,000 -67,000 664,000 62,000 459,000 571,000 92,000 20,720,000 67,000 906,000 131,000 1,315,000 150,000 1,000,000 3,293,000 13,000 199,765,000 
          effect of exchange rate changes on cash and cash equivalents
        		-100,000  355,000 -583,000 -105,000  -119,000 202,000 21,000 21,000 -200,000 192,000 132,000 21,000 90,000 101,000 3,000 -88,000 -55,000 
          net increase in cash, cash equivalents, and restricted cash
        		-8,180,000  1,085,000 913,000 3,650,000               
          cash, cash equivalents, and restricted cash at beginning of the period
        		70,009,000  0 0 71,162,000  0             
          cash, cash equivalents, and restricted cash at end of the period
        		61,829,000  1,085,000 913,000 74,812,000  -151,000             
          reconciliation of cash, cash equivalents, and restricted cash to consolidated balance sheets:
        		                   
          cash and cash equivalents
        		61,572,000 -6,798,000 1,083,000 911,000 74,555,000 7,593,000 -152,000 -6,636,000 -8,826,000 110,407,000 -10,666,000 -9,545,000 -7,221,000 129,168,000 -39,595,000 -10,628,000 -10,580,000 209,283,000 191,755,000 
          restricted cash
        		257,000 -3,000 2,000 2,000 257,000 -1,000 1,000 -230,000 235,000 231,000 0 0 0 231,000 0 0 0 231,000 0 
          cash, cash equivalents, and restricted cash in consolidated balance sheets
        		61,829,000 -6,801,000 1,085,000 913,000 74,812,000 7,592,000 -151,000             
          impairment of capitalized software development costs
        		     0 0             
          change in allowance for credit losses
        		     0 0             
          purchases of property and equipment
        		       -492,000 -54,000 -61,000 -176,000 -279,000 -299,000 -564,000 -1,148,000 -1,620,000 -661,000 -242,000 -693,000 
          repayment of credit agreement
        		 -51,000 -1,000   -49,000 0 0   -43,000 0        
          debt issuance cost
        		 0 -23,000              -11,000 -30,000 0 
          effect of exchange rate changes on cash, cash equivalents, and restricted cash
        		                   
          net decrease in cash, cash equivalents, and restricted cash
        		     7,592,000              
          cash, cash equivalents, and restricted cash at beginning of year
        		                   
          cash, cash equivalents, and restricted cash at end of year
        		                   
          supplemental non-cash items:
        		                   
          purchases of property and equipment in accounts payable and accrued liabilities
        		   66,000 9,000     469,000          
          supplemental disclosure of cash flow information:
        		                   
          cash paid for income taxes
        		         92,000     39,000 57,000   110,000 
          cash paid for interest
        		         356,000     120,000 242,000   179,000 
          amount receivable from exercise of common stock options
        		         2,000    24,000      
          gain on disposal of fixed assets
        		                   
          inventory write-downs
        		     -165,000 -44,000 532,000 107,000 273,000 170,000 204,000 65,000 46,000 214,000 307,000 212,000 453,000 92,000 
          proceeds from borrowing under term loan
        		       0 0 20,000,000          
          lapse in repurchase rights of common stock
        		        47,000 56,000    59,000      
          loss on disposal of fixed assets
        		       -20,000 0 1,000  6,000        
          allowance for doubtful accounts
        		       -59,000   -11,000 64,000   5,000 0 0 -1,000 0 
          amortization of premiums and discounts on investments
        		                   
          amortization of premiums and discounts on marketable securities
        		        -234,000 -203,000          
          maturities of short-term marketable securities
        		        11,750,000 13,750,000  15,250,000 15,030,000 4,250,000  4,500,000    
          net increase in cash and cash equivalents
        		        -8,591,000 8,671,000     -39,595,000 -10,628,000 -10,580,000 -22,278,000 191,755,000 
          cash, cash equivalents and restricted cash, at beginning of the period
        		        0 101,967,000  0 0 148,711,000  0 0 231,792,000  
          cash, cash equivalents and restricted cash, at end of the period
        		        -8,591,000 110,638,000  -9,545,000 -7,221,000 129,399,000  -10,628,000 -10,580,000 209,514,000  
          reconciliation of cash, cash equivalents and restricted cash to consolidated balance sheets:
        		                   
          cash, cash equivalents and restricted cash in consolidated balance sheets
        		        -8,591,000 110,638,000 -10,666,000 -9,545,000 -7,221,000 129,399,000 -39,595,000 -10,628,000 -10,580,000 209,514,000 191,755,000 
          write-off of fixed assets
        		                   
          payments for the repurchase of early exercised common stock options
        		                 -26,000 0 
          net decrease in cash and cash equivalents
        		          -10,666,000 -9,545,000 -7,221,000 -19,312,000      
          cash and cash equivalents at beginning of year
        		                   
          cash, cash equivalents and restricted cash at end of year
        		                   
          operating lease right of use assets obtained in exchange for new lease liabilities
        		              195,000    53,000 
          amount receivable from exercise of options
        		                   
          amortization of premiums and discounts on short-term marketable securities
        		           -75,000 -2,000 21,000 22,000 21,000 12,000 4,000 0 
          payments for repurchase of early exercised common stock options
        		               0    
          payment of debt issuance cost
        		                   
          purchases of property and equipment in accounts payable
        		             456,000  457,000    
          change in fair value of derivative liability
        		                   
          write-off of deferred offering costs
        		                  0 
          proceeds from borrowing under term loans, net of payment of lender fees and costs
        		                  527,000 
          repayment of term loans
        		                  0 
          payment of success fee
        		                   
          proceeds from the issuance of convertible note, net of payment of lender fees and costs
        		                  0 
          proceeds from paycheck protection program loan
        		                  0 
          repayment of paycheck protection program loan
        		                  0 
          payments of deferred offering costs
        		                  265,000 
          proceeds from exercise of warrants for series c-1 convertible preferred stock
        		                  0 
          proceeds from initial public offering, net of offering costs
        		                   
          lapse (increase) in repurchase rights of common stock
        		              62,000     
          issuance of derivative instrument related to convertible notes
        		                  0 
          employee stock purchase plan expense
        		                   
          change in fair value of derivative liabilities
        		                   
          proceeds from credit agreement
        		                   
          payments of debt issuance cost
        		                   
          accrued interest for convertible note
        		                   
          net income
        		                 -12,045,000  
          adjustments to reconcile net income to net cash from operating activities
        		                   
          change in fair value of convertible preferred stock warrant liability
        		                   
          gain on extinguishment of convertible note
        		                   
          deferred rent
        		                   
          proceeds from sale of property and equipment
        		                   
          proceeds from issuance of series g-1 convertible preferred stock, net of issuance costs of 329
        		                   
          conversion of convertible note into series g-1 convertible preferred stock
        		                   
          deferred offering costs in accrued liabilities and accounts payable
        		                   
          deposit for operating lease in accounts payable
        		                   
          operating lease right of use asset recorded on the adoption of asc 842
        		                   
          increases in repurchase rights of common stock