CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 18,435	$ 23,312
Restricted cash	566	1,072
Accounts receivable, net of allowances of $687 and $1,610 as of June 30, 2024 and December 31, 2023, respectively	3,716	7,404
Inventories	11,267	13,560
Prepaid expenses and other current assets	1,797	1,222
Current assets held-for-sale	33,600	32,916
Total current assets	69,381	79,486
Property and equipment, net	7,669	8,472
Operating lease right-of-use assets	2,228	2,289
Other assets	681	678
Non-current assets held-for-sale	17,801	18,798
Total assets	97,760	109,723
Current liabilities:
Accounts payable	2,946	4,652
Financial liabilities, net of debt issuance costs of $95 and $51 as of June 30, 2024 and December 31, 2023, respectively	7,905	9,949
Operating lease liabilities	815	782
Accrued compensation and related benefits	1,191	1,376
Other accrued expenses and liabilities	3,036	1,021
Current liabilities held-for-sale	12,334	13,002
Total current liabilities	28,227	30,782
Long-term operating lease liabilities	1,393	1,507
Other long-term liabilities	27	26
Non-current liabilities held-for-sale	3,056	3,136
Total liabilities	32,703	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 June 30, 2024 and December 31, 2023	5	5
Common stock, $0.001 par value: 50,000 shares authorized; 25,190 and 24,902 shares issued and 23,448 and 23,247 shares outstanding as of June 30, 2024 and December 31, 2023, respectively	25	25
Additional paid-in capital	503,246	500,752
Treasury stock, 1,742 and 1,655 shares as of June 30, 2024 and December 31, 2023, respectively	(13,510)	(12,969)
Accumulated deficit	(425,644)	(414,870)
Accumulated other comprehensive income	935	1,329
Total stockholders' equity	65,057	74,272
Total liabilities and stockholders' equity	$ 97,760	$ 109,723