Condensed Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 16,427	$ 32,712
Accounts receivable, net of allowance for doubtful accounts of $100 and $158	3,774	3,656
Other current assets	7,032	7,245
Total current assets	27,233	43,613
Non‑current assets
Property and equipment, net	4,028	4,179
Intangible assets, net	11,131	11,617
Operating lease right-of-use assets	2,219
Goodwill	15,031	15,031
Other long-term assets	2,009	1,657
Total non‑current assets	34,418	32,484
Total assets	61,651	76,097
Current liabilities
Accounts payable	2,120	1,662
Accrued liabilities	6,173	7,665
Deferred revenue	2,499	1,850
Current portion of operating lease liabilities	1,110
Current portion of contingent consideration	17,821	17,764
Current portion of notes payable	51	19
Other current liabilities	37
Total current liabilities	29,811	28,960
Non‑current liabilities
Long‑term notes payable, net of current portion	10,055	9,993
Long-term operating lease liabilities	1,177
Contingent consideration	12,212	16,028
Other long-term liabilities	615	1,389
Total non‑current liabilities	24,059	27,410
Total liabilities	53,870	56,370
Commitments and contingencies
Stockholders' equity
Preferred stock, $0.001 par value, 5,000,000 shares authorized; 0 (2022 and 2021) shares issued and outstanding
Common stock, $0.001 par value, 200,000,000 shares authorized; 31,889,317 (2022) and 30,789,649 (2021) shares issued and outstanding	32	31
Additional paid‑in capital	325,308	321,669
Accumulated deficit	(317,559)	(301,973)
Total stockholders' equity	7,781	19,727
Total liabilities and stockholders' equity	$ 61,651	$ 76,097