Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities
Net loss	$ (10,096)	$ (8,494)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock based compensation	398	57
Depreciation	10	8
Change in fair value of derivative liabilities		(436)
Amortization of debt discount		1,747
Loss on extinguishment of debt		1,636
Amortization of right-of-use asset	164	16
Noncash interest		76
Forgiveness of PPP loan		(157)
Issuance of common stock warrant		280
Accounts receivable allowances		66
Reserve for inventory obsolescence		(8)
Changes is operating assets and liabilities:
Accounts receivable	4	(66)
Inventory	(434)	(181)
Prepaid expenses and other current assets	558	(707)
Accounts payable	534	419
Accrued expenses	106	128
Lease liabilities	(178)	4
Other assets	15
Net cash used in operating activities	(8,919)	(5,612)
Cash flows from investing activities
Acquisition of property and equipment	(11)
Net cash used in investing activities	(11)
Cash flows from financing activities
Repayment of notes payable borrowings		(19)
Proceeds from convertible notes payable borrowings		2,513
Proceeds from convertible notes payable borrowings - related party		100
Proceeds from exercise of stock options	56	62
Proceeds from issuance of common stock, net of issuance costs		14,887
Offering costs in advance of sale of common stock	(584)
Net cash provided by (used in) financing activities	(528)	17,543
Net increase (decrease) in cash and cash equivalents	(9,458)	11,931
Cash and cash equivalents
Beginning of period	12,975	1,044
End of period	$ 3,517	12,975
Supplemental disclosure on noncash financing activities
Issuance of conversion feature derivative liability		1,355
Conversion of convertible notes payable and accrued interest to common stock		4,384
Conversion of convertible preferred stock to common stock		1
Reclassify conversion feature derivative liability to additional paid in capital		1,636
Issuance of common stock warrant		328
Recognition of right-of-use asset and operating lease liability		$ 704