CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Current assets
Cash, cash equivalents and restricted cash	$ 1,129	$ 4,864
Accounts receivable, net of allowance of $46 and $44	3,838	3,176
Inventory, net	1,984	3,238
Prepaid expenses and other current assets	2,839	2,233
Total current assets	9,790	13,511
Property and equipment, net	19	21
Other assets	40
Total assets	9,849	13,532
Current liabilities
Accounts payable	6,023	5,656
Accrued expenses and other current liabilities	5,466	5,365
Other current debt	5,342	5,764
Current accrued interest	229	783
Deferred revenue, current portion	2,868	3,324
Total current liabilities	19,928	20,892
Other noncurrent debt	7,606	6,191
Noncurrent accrued interest	1,647	819
Deferred revenue, net of current portion	287	318
Total liabilities	29,468	28,220
Commitments and contingencies (Note 11)
Stockholders' deficit:
Common stock, $0.00001 par value; 100,000,000 shares authorized as of March 31, 2025; 22,849,378 shares issued and outstanding as of March 31, 2025 and December 31, 2024
Additional paid-in capital	276,356	275,383
Accumulated other comprehensive income	257	329
Accumulated deficit	(296,232)	(290,400)
Total stockholders' deficit	(19,619)	(14,688)
Total liabilities, temporary redeemable preferred stock and stockholders' deficit	$ 9,849	$ 13,532