Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 9,034	$ 5,434
Restricted cash	1,361	1,361
Accounts receivable, net of allowance for credit losses of $244 and $382 at June 30, 2023 and December 31, 2022, respectively	4,401	4,471
Inventories	5,921	5,547
Prepaid expenses and other current assets	528	691
Total current assets	21,245	17,504
Property and equipment, net	8,319	7,498
Operating lease right-of-use assets	807	975
Intangible assets, net	15,959	17,394
Goodwill	8,803	8,803
Other assets	71	98
Total assets	55,204	52,272
Current liabilities:
Accounts payable	3,880	3,425
Accrued expenses and other current liabilities	6,731	6,555
Deferred revenues	2,436	2,778
Current portion of operating lease liabilities	392	355
Current portion of contingent consideration	681	313
Total current liabilities	14,120	13,426
Long-term debt, net	14,987	7,476
Deferred revenues and other liabilities	596	314
Deferred tax liability	306	306
Operating lease liabilities, net of current portion	387	610
Contingent consideration, net of current portion	7,899	8,309
Total liabilities	38,295	30,441
Commitments and contingencies (Note 14)
Stockholders' equity:
Series C convertible preferred stock, $0.10 par value; 10,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.001 par value; 150,000,000 shares authorized; 34,881,453 and 34,723,046 shares issued and outstanding at June 30, 2023 and December 31, 2022, respectively	35	35
Additional paid-in capital	250,085	249,024
Accumulated deficit	(233,211)	(227,228)
Total stockholders' equity	16,909	21,831
Total liabilities and stockholders' equity	$ 55,204	$ 52,272