CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 21,623	$ 23,312
Restricted cash	811	1,072
Accounts receivable, net of allowances of $701 and $2,627 as of March 31, 2024 and December 31, 2023, respectively	17,811	21,969
Inventories	28,460	28,712
Prepaid expenses and other current assets	4,159	4,421
Total current assets	72,864	79,486
Property and equipment, net	8,832	9,320
Operating lease right-of-use assets	4,756	5,214
Intangible assets, net	3,995	4,251
Goodwill	10,192	10,218
Other assets	1,150	1,234
Total assets	101,789	109,723
Current liabilities:
Accounts payable	9,564	12,250
Financial liabilities, net of debt issuance costs of $106 and $5 as of March 31, 2024 and December 31, 2023, respectively	9,894	9,949
Operating lease liabilities	1,655	1,714
Deferred revenue	1,744	2,341
Accrued compensation and related benefits	2,099	2,334
Other accrued expenses and liabilities	2,351	2,194
Total current liabilities	27,307	30,782
Long-term operating lease liabilities	3,309	3,716
Long-term deferred revenue	981	927
Other long-term liabilities	26	26
Total liabilities	31,623	35,451
Commitments and contingencies (see Note 15)
Stockholders' equity:
Preferred stock, $0.001 par value: 10,000 shares authorized; 5,000 shares issued and outstanding as of March 31, 2024 and December 31, 2023	5	5
Common stock, $0.001 par value: 50,000 shares authorized; 25,022 and 24,902 shares issued and 23,334 and 23,247 shares outstanding as of March 31, 2024 and December 31, 2023, respectively	25	25
Additional paid-in capital	501,771	500,752
Treasury stock, 1,688 and 1,655 shares as of March 31, 2024 and December 31, 2023, respectively	(13,246)	(12,969)
Accumulated deficit	(419,428)	(414,870)
Accumulated other comprehensive income	1,039	1,329
Total stockholders' equity	70,166	74,272
Total liabilities and stockholders' equity	$ 101,789	$ 109,723