Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash Flows From Operating Activities:
Net income	$ 3,128,000	$ 2,718,000
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation	68,000	119,000
Depreciation and amortization	687,000	641,000
Equity in income of unconsolidated affiliate	(392,000)	(87,000)
Operating lease expense, net of accretion	515,000	689,000
Changes in operating assets and liabilities:
Accounts receivable, net	(2,066,000)	(2,680,000)
Accounts receivable, related party	599,000	161,000
Inventories	2,871,000	(155,000)
Prepaid expenses	344,000	2,374,000
Accounts payable and accrued liabilities	(302,000)	(759,000)
Lease liabilities	(523,000)	(690,000)
Net cash provided by operating activities	4,929,000	2,331,000
Cash Flows From Investing Activities:
Purchases of property and equipment	(487,000)	(349,000)
Net cash used in investing activities	(487,000)	(349,000)
Cash Flows From Financing Activities:
Proceeds from exercise of stock options	440,000	60,000
Repurchase of common stock	(2,979,000)	(2,832,000)
Treasury stock excise tax	(30,000)	0
Net cash used in financing activities	(2,569,000)	(2,772,000)
Increase (decrease) in cash and cash equivalents	1,873,000	(790,000)
Cash and cash equivalents, beginning of the period	16,290,000	16,307,000
Cash and cash equivalents, end of the period	$ 18,163,000	$ 15,517,000