Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash Flows from Operating Activities:
Net loss	$ (1,045,000)	$ (1,390,000)
Reconciliation of net (loss) income to net cash used in operating activities:
Allowance for doubtful accounts	4,000	86,000
Depreciation and amortization	37,000	42,000
Accretion of debt discount	77,000	81,000
Change in fair value of derivative liabilities	(79,000)	(223,000)
Debt extinguishment gain	0	35,000
Amortization of operating lease right-of-use asset	101,000	90,000
Stock based compensation	62,000	45,000
Subtotal of non-cash charges	202,000	86,000
us-gaap_IncreaseDecreaseInOperatingCapitalAbstract
Accounts receivable	(95,000)	400,000
Inventories	433,000	324,000
Prepaid expenses and other current assets	366,000	231,000
Accounts payable and accrued expenses	(326,000)	(126,000)
Deferred revenue	134,000	323,000
Lease liabilities	(100,000)	(89,000)
Net cash provided by (used in) operating activities	(431,000)	(241,000)
Cash Flows from Financing Activities:
Proceeds from issuance of notes payable	0	630,000
Proceeds from issuance of note payable to related party	500,000	0
Net cash provided by financing activities	240,000	367,000
Net (decrease) increase in cash	(191,000)	126,000
Cash, beginning of the period	367,000	866,000
Cash, end of the period	176,000	992,000
Supplemental Cash Flow Information [Abstract]
Cash paid for interest	2,000	90,000
Cash paid for interest to related party	53,000	8,000
Cash paid for income taxes	0	4,000
Conversion of Series A convertible preferred stock	0	1,000
Nonrelated Party [Member]
Cash Flows from Financing Activities:
Repayment of notes payable	(230,000)	(263,000)
Related Party [Member]
Cash Flows from Financing Activities:
Repayment of notes payable	$ (30,000)	$ 0