Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 22,738	$ 25,584
Marketable securities, short-term	46,839	44,863
Restricted cash, short-term	7,139	5,764
Accounts receivable	5,340	21,085
Inventory	14,938	13,327
Employer retention credit receivable	2,562	4,703
Prepaid expenses and other current assets	2,232	2,541
Total current assets	101,788	117,867
Noncurrent assets
Property and equipment, net	8,145	9,221
Right-of-use assets, net	3,708	3,872
Intangible assets, net	1,533	1,583
Other assets	822	897
Total assets	115,996	133,440
Current liabilities:
Accounts payable	5,569	4,721
Accrued liabilities	7,302	9,686
Contingent consideration, short-term	2,000	1,800
Operating lease liabilities, short-term	339	319
Warrant liability	1,900	3,346
Total current liabilities	17,110	19,872
Operating lease liabilities, long-term	3,883	4,103
Long-term debt	34,526	34,434
Other long-term liabilities	11	12
Total liabilities	55,530	58,421
Commitments and contingencies (Note 12)
Stockholders' equity
Preferred stock, $0.001 par value; 5,000,000 shares authorized as of March 31, 2023 and December 31, 2022; 6,666 shares of the preferred stock, designated as Series A Common Equivalent Preferred Stock, are issued and outstanding as of March 31, 2023 and December 31, 2022	0	0
Common stock, $0.001 par value; 260,000,000 shares authorized as of March 31, 2023 and December 31, 2022; 28,894,080 and 28,554,656 shares issued and outstanding as of March 31, 2023 and December 31, 2022, respectively	29	29
Additional paid-in capital	595,864	594,173
Accumulated deficit	(534,629)	(518,314)
Accumulated other comprehensive loss	(798)	(869)
Total stockholders' equity	60,466	75,019
Total liabilities and stockholders' equity	$ 115,996	$ 133,440