Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 6,784	$ 5,434
Restricted cash	1,334	1,361
Accounts receivable, net of allowance for credit losses of $222 and $382 at December 31, 2023 and 2022, respectively	4,440	4,471
Inventories	2,673	3,095
Prepaid expenses and other current assets	312	691
Total current assets	15,543	15,052
Property and equipment, net	11,778	9,950
Operating lease right-of-use assets	626	975
Intangible assets, net	7,319	17,394
Goodwill	6,519	8,803
Other assets	231	98
Total assets	42,016	52,272
Current liabilities:
Accounts payable	3,343	3,425
Accrued expenses and other current liabilities	6,306	6,555
Deferred revenues	2,120	2,778
Current portion of operating lease liabilities	352	355
Current portion of contingent consideration	53	313
Total current liabilities	12,174	13,426
Long-term debt, net	15,044	7,476
Deferred revenues and other liabilities	552	314
Deferred tax liability	186	306
Operating lease liabilities, net of current portion	237	610
Contingent consideration, net of current portion	1,135	8,309
Total liabilities	29,328	30,441
Commitments and contingencies (Note 11)
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; 35,060,920 and 34,723,046 shares issued and outstanding at December 31, 2023 and 2022, respectively	35	35
Additional paid-in capital	250,711	249,024
Accumulated deficit	(238,058)	(227,228)
Total stockholders' equity	12,688	21,831
Total liabilities and stockholders' equity	$ 42,016	$ 52,272