CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net loss	$ (4,556,000)	$ (2,450,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	186,000	181,000
Amortization	57,000	73,000
Amortization of right-of-use assets	202,000	299,000
Change in fair value of senior secured convertible notes, related party	1,917,000	(566,000)
Change in fair value of warrants issued with senior secured convertible notes	(117,000)	(796,000)
Change in fair value of senior secured convertible notes	(165,000)	(143,000)
Stock-based compensation	46,000	106,000
Compensation warrant issued in connection with senior secured convertible notes	0	858,000
Offering Costs in Connection with Senior Secured Convertible Notes	0	653,000
Changes in operating assets and liabilities:
Accounts receivable	(57,000)	58,000
Accrued revenue	677,000	(274,000)
Inventories	106,000	(235,000)
Prepaid expenses and other current assets	(441,000)	(98,000)
Accounts payable and accrued expenses	1,504,000	(40,000)
Other current liabilities	1,068,000	(211,000)
Other non-current liabilities	(80,000)	154,000
Lease liabilities	(215,000)	(305,000)
Net cash provided by (used) in operating activities	132,000	(2,736,000)
Cash flows from investing activities:
Purchases of property and equipment	(237,000)	(27,000)
Net cash used in investing activities	(237,000)	(27,000)
Cash flows from financing activities:
Proceeds from the exercise of warrants, related party	20,000	0
Proceeds from accounts receivables, related party	0	301,000
Proceeds from notes payable, related party	952,000	0
Proceeds from senior secured convertible notes, net of issuance costs	0	2,680,000
Payments on notes payable	(388,000)	(77,000)
Net cash provided by financing activities	584,000	2,904,000
Effects of exchange rate changes on cash and cash equivalents	(13,000)	168,000
Net increase/(decrease) in cash and cash equivalents	465,000	309,000
Cash and cash equivalents at beginning of period	4,301,000	2,195,000
Cash and cash equivalents at end of period	4,766,000	2,504,000
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	295,000	213,000
Non-cash investing and financing activities
Operating lease right-of-use asset obtained in exchange for operating lease liabilities	$ 321,000	$ 0