Condensed Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities
Net loss	$ (4,178)	$ (6,001)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock based compensation	166	213
Depreciation	3	6
Amortization of right-of-use asset	76	129
Inventory allowances	16
Bad debt expenses	5
Changes in operating assets and liabilities:
Accounts receivable	160	(43)
Inventory	9	(65)
Prepaid expenses and other current assets	93	8
Accounts payable	(380)	(685)
Accrued expenses	(268)	(184)
Lease liabilities	(96)	(115)
Other assets	34
Net cash used in operating activities	(4,360)	(6,737)
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	3,266	8,507
Offering costs in advance of sale of common stock	(112)
Net cash provided by financing activities	3,154	8,507
Net change in cash and cash equivalents	(1,206)	1,652
Cash and cash equivalents
Beginning of period	3,395	3,517
End of period	2,189	5,169
Supplemental disclosure on noncash financing activities
Issuance of common stock warrant	70	363
Deferred offering costs charged to additional paid-in-capital		$ 584
Write-off of ROU asset and lease liability	$ 290