Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 5,483	$ 6,784
Restricted cash	1,334	1,334
Accounts receivable, net of allowance for credit losses of $182 and $222 at June 30, 2024 and December 31, 2023, respectively	3,979	4,440
Inventories	2,692	2,673
Prepaid expenses and other current assets	337	312
Total current assets	13,825	15,543
Property and equipment, net	11,149	11,778
Operating lease right-of-use assets	1,429	626
Intangible assets, net	6,334	7,319
Goodwill	6,519	6,519
Other assets	325	231
Total assets	39,581	42,016
Current liabilities:
Accounts payable	2,886	3,343
Accrued expenses and other current liabilities	6,608	6,306
Deferred revenues	2,261	2,120
Current portion of operating lease liabilities	313	352
Current portion of contingent consideration	65	53
Total current liabilities	12,133	12,174
Long-term debt, net	15,114	15,044
Deferred revenues and other liabilities	473	552
Deferred tax liability	186	186
Operating lease liabilities, net of current portion	1,083	237
Contingent consideration, net of current portion	1,096	1,135
Total liabilities	30,085	29,328
Commitments and contingencies (Note 13)
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; 3,506,025 shares issued and outstanding at June 30, 2024 and December 31, 2023	4	4
Additional paid-in capital	251,017	250,742
Accumulated deficit	(241,525)	(238,058)
Total stockholders' equity	9,496	12,688
Total liabilities and stockholders' equity	$ 39,581	$ 42,016