Condensed Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 47,913	$ 62,126
Accounts receivable, net of allowance for doubtful accounts of $168 and $180	2,784	15,304
Other current assets	5,748	8,710
Total current assets	56,445	86,140
Non‑current assets
Property and equipment, net	4,432	3,178
Intangible assets, net	11,992	13,260
Other long-term assets	2,097	3,461
Goodwill	15,031	15,031
Total non‑current assets	33,552	34,930
Total assets	89,997	121,070
Current liabilities
Accounts payable	1,600	8,964
Accrued liabilities	6,279	7,789
Deferred revenue	1,760	3,532
Current portion of contingent consideration	13,128
Current portion of notes payable	20	11,840
Total current liabilities	22,787	32,125
Non‑current liabilities
Long‑term notes payable, net of current portion	29,975	15,926
Contingent consideration	19,722	29,932
Other long-term liabilities	1,480	1,921
Total non‑current liabilities	51,177	47,779
Total liabilities	73,964	79,904
Commitments and contingencies
Stockholders' equity
Preferred stock, $0.001 par value, 5,000,000 shares authorized; 0 (2021 and 2020) shares issued and outstanding
Common stock, $0.001 par value, 200,000,000 shares authorized; 27,020,070 (2021) and 26,561,504 (2020) shares issued and outstanding	27	27
Additional paid‑in capital	304,697	299,953
Accumulated deficit	(288,691)	(258,814)
Total stockholders' equity	16,033	41,166
Total liabilities and stockholders' equity	$ 89,997	$ 121,070