Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 4,429	$ 5,246
Accounts receivable, net	3,123	3,377
Inventory, net	2,211	1,332
Prepaid expenses and other current assets	1,143	1,403
Total current assets	10,906	11,358
Property and equipment, net	151	177
Right of use asset	628	695
Other non-current assets	2,012	2,012
Total assets	13,697	14,242
Current liabilities:
Long-term debt, current portion	1,508	1,426
Accounts payable	10,358	7,734
Accrued expenses	6,310	3,908
Lease liability, current portion	330	319
Total current liabilities	18,506	13,387
Lease liabilities, long-term	378	466
Warrant liability	4,247	5,934
Total liabilities	23,131	19,787
Commitments and contingencies (Note 10)
Stockholders' deficit
Preferred stock, $.0001 par value, 10,000,000 shares authorized, 4,850 issued and no shares outstanding at March 31, 2023 and no shares issued and outstanding at December 31, 2022
Common stock, $.0001 par value, 300,000,000 shares authorized, 932,101 and 859,402 issued and outstanding at March 31, 2023 and December 31, 2022, respectively
Additional paid-in capital	404,658	403,157
Accumulated deficit	(414,092)	(408,702)
Total stockholders' deficit	(9,434)	(5,545)
Total liabilities and stockholders' deficit	$ 13,697	$ 14,242