Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 4,246	$ 15,689
Accounts receivable, net	1,297	1,420
Inventories	5,169	4,819
Prepaid expenses and other current assets	2,284	3,261
Total current assets	12,996	25,189
Property and equipment, net	1,517	1,658
Operating lease right-of-use assets	6,656	7,395
Restricted cash	551	551
Other assets	1	4
Total assets	21,721	34,797
Current liabilities:
Accounts payable	1,686	1,527
Accrued expenses and other current liabilities	4,276	4,905
Operating lease liability	1,687	1,616
Warrant liabilities	387	235
Deferred revenue	237	224
Total current liabilities	21,799	56,152
Operating lease liabilities, net of current portion	5,746	6,598
Deferred revenue, net of current portion	74	83
Total liabilities	27,619	62,833
Commitments and contingencies (see Note 14)
Stockholders’ deficit
Preferred stock, $0.001 par value; 10,000,000 shares authorized: Series B Convertible Preferred Stock, 0 shares designated on June 30, 2024, 0 and 93,297 shares issued and outstanding to related party on June 30, 2024 and December 31, 2023, respectively
Common stock, $0.001 par value; 400,000,000 shares authorized; 17,394,249 and 4,058,381 shares issued and outstanding on June 30, 2024 and December 31, 2023, respectively	17	4
Additional paid-in capital	600,878	556,256
Accumulated deficit	(606,793)	(584,296)
Total stockholders’ deficit	(5,898)	(28,036)
Total liabilities and stockholders' deficit	21,721	34,797
Related Party [Member]
Current liabilities:
Notes payable to related party	11,787	41,284
Accrued final payment fee on Term Loan with related party	1,315	4,807
Derivative liability related to Term Loan with related party	$ 424	$ 1,554