CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 23,312	$ 16,650
Restricted cash	1,072	487
Accounts receivable, net of allowances of $2,627 and $2,666 as of December 31, 2023 and 2022, respectively	21,969	24,826
Inventories	28,712	28,958
Prepaid expenses and other current assets	4,421	4,177
Total current assets	79,486	75,098
Property and equipment, net	9,320	6,719
Operating lease right-of-use assets	5,214	4,373
Intangible assets, net	4,251	5,265
Goodwill	10,218	10,190
Other assets	1,234	1,120
Total assets	109,723	102,765
Current liabilities:
Accounts payable	12,250	15,231
Financial liabilities, net of debt issuance costs of $51 and $0 as of December 31, 2023 and 2022, respectively	9,949
Operating lease liabilities	1,714	1,190
Deferred revenue	2,341	2,068
Accrued compensation and related benefits	2,334	2,757
Other accrued expenses and liabilities	2,194	2,147
Total current liabilities	30,782	23,393
Long-term operating lease liabilities	3,716	3,366
Long-term deferred revenue	927	587
Other long-term liabilities	26	25
Total liabilities	35,451	27,371
Commitments and contingencies (see Note 16)
Stockholders' equity:
Common stock, $0.001 par value: 50,000 shares authorized; 24,902 and 24,168 shares issued and 23,247 and 22,623 shares outstanding as of December 31, 2023 and 2022, respectively	25	24
Additional paid-in capital	500,752	495,818
Treasury stock 1,655 and 1,545 shares as of December 31, 2023 and 2022, respectively	(12,969)	(12,173)
Accumulated deficit	(414,870)	(409,381)
Accumulated other comprehensive income	1,329	1,101
Total stockholders' equity	74,272	75,394
Total liabilities and stockholders' equity	109,723	102,765
Series B Convertible Preferred Stock
Stockholders' equity:
Series B preferred stock, $0.001 par value: 5,000 shares authorized; 5,000 shares issued and outstanding as of December 31, 2023 and 2022, respectively	$ 5	$ 5