Condensed Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities
Net loss	$ (2,747)	$ (4,241)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock based compensation	108	165
Depreciation	2	6
Amortization of right-of-use asset	76	85
Inventory allowances	16
Bad debt expenses	5
Non-cash gain on lease termination	(17)
Changes is operating assets and liabilities:
Accounts receivable	153	75
Inventory	(26)	(125)
Prepaid expenses and other current assets	139	(40)
Accounts payable	(267)	(492)
Accrued expenses	(350)	(229)
Lease liabilities	(79)	(70)
Other assets	34
Net cash used in operating activities	(2,953)	(4,866)
Cash flows from investing activities
Acquisition of property and equipment		(118)
Net cash used in investing activities		(118)
Cash flows from financing activities
Proceeds from issuance of common stock and warrants, net of issuance costs	3,251	4,191
Offering costs in advance of sale of common stock		(65)
Net cash provided by financing activities	3,251	4,126
Net change in cash and cash equivalents	298	(858)
Cash and cash equivalents
Beginning of period	3,395	3,517
End of period	3,693	2,659
Supplemental disclosure on noncash financing activities
Issuance of common stock warrant	70	195
Deferred offering costs charged to additional paid-in-capital		$ 584
Write-off of ROU asset and lease liability	$ 290