Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net income (loss)	$ (1,054,000)	$ (1,799,000)
Reconciliation of net income (loss) to cash provided by operating activities:
Depreciation and amortization expense	980,000	940,000
Amortization of debt issuance costs	15,000	10,000
Compensation costs - stock options	0	1,000
Provision for losses on accounts receivable	8,000	3,000
Gain on disposal of equipment	(7,000)	0
Change in operating assets and liabilities:
Accounts receivable	(2,774,000)	(2,303,000)
Unbilled membership dues receivable	(223,000)	(148,000)
Inventories	(199,000)	(270,000)
Prepaid expenses	(166,000)	(284,000)
Other assets, net	0	67,000
Accounts payable	1,637,000	2,131,000
Accrued payroll and other compensation	476,000	392,000
Accrued taxes	(35,000)	(141,000)
Deferred membership dues revenue	1,715,000	1,257,000
Other liabilities and accrued expenses	38,000	390,000
Net cash provided by operating activities	411,000	246,000
Cash flows from investing activities:
Capital expenditures	(355,000)	(1,098,000)
Proceeds from disposal of equipment	7,000	0
Net cash used in investing activities	(348,000)	(1,098,000)
Cash flows from financing activities:
Principal payments on term loan facilities	(146,000)	(138,000)
Borrowings under line of credit facility	0	650,000
Principal payments on finance lease obligations	(14,000)	(2,000)
Net cash provided by (used in) financing activities	(160,000)	510,000
Decrease in cash, cash equivalents and restricted cash	(97,000)	(342,000)
Cash, cash equivalents and restricted cash at beginning of period	11,452,000	12,050,000
Cash, cash equivalents and restricted cash at end of period	11,355,000	11,708,000
Significant non-cash operating and investing activities:
Capital expenditures included in accounts payable	22,000	76,000
us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract
Operating lease right-of-use assets in exchange for lease obligations	0	35,000
Finance lease obligations incurred	0	154,000
Cash paid during the period for interest	558,000	498,000
Cash paid during the period for income taxes	$ 0	$ 38,000