Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash Flows From Operating Activities:
Net loss	$ (1,293,000)	$ (1,598,000)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization	306,000	407,000
Bad debt expense	(5,000)	(2,000)
(Gain) loss on disposal of assets	(120,000)	6,000
Write off of obsolete fixed assets		54,000
Inventory reserve	(24,000)	(19,000)
Stock dividend payable	(38,000)	(38,000)
Amortization of debt issuance costs	13,000
Interest accrued to secured credit facilities	9,000	78,000
Payment of accrued interest on secured credit facilities		(142,000)
Interest accrued to notes payable	164,000
Interest accrued to secured credit facilities, related party	61,000	123,000
Payment of accrued interest on secured credit facilities, related party	(81,000)	(141,000)
Issuance of common stock in exchange for services for third parties	2,000	83,000
Issuance of common stock in exchange for services of related parties		60,000
Changes in operating assets and liabilities:
Trade receivables, net	(108,000)
Inventories	47,000	471,000
Prepaid expenses and other assets	68,000	(390,000)
Right-of-use assets	214,000	290,000
Accounts payable	195,000	350,000
Accrued liabilities	164,000	(104,000)
Other liabilities, related party	581,000	279,000
Deferred revenue	(23,000)	96,000
Net lease liabilities	(213,000)	(291,000)
Net cash used in operating activities	(81,000)	(428,000)
Cash Flows From Investing Activities:
Proceeds from sale of fixed assets	14,000
Purchases of property and equipment		(28,098)
Net cash provided by (used in) investing activities	14,000	(28,000)
Cash Flows From Financing Activities:
Net cash provided by financing activities
Net decrease in cash	(67,000)	(456,000)
Cash at the beginning of the period	403,000	723,000
Cash at the end of the period	336,000	267,000
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest	81,000	323,000
Cash paid for amounts included in measurement of lease liabilities	158,000	318,000
Supplemental Disclosure of Non-Cash Financing Activity
Future proceeds related to installment sales of equipment	114,000
Exchange of assets for services		$ 42,000