Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Cash Flows From Operating Activities:
Net Income	$ 3,282,000	$ 6,756,000
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Share-based compensation	147,000	315,000
Depreciation and amortization	814,000	817,000
Equity in income of unconsolidated affiliate	(87,000)	(571,000)
Operating lease expense, net of accretion	923,000	887,000
Deferred income taxes	(27,000)	228,000
Changes in assets and liabilities:
Accounts receivable, net	(1,985,000)	4,735,000
Accounts receivable, related party	(208,000)	(478,000)
Inventories	572,000	(8,220,000)
Prepaid expenses	2,043,000	(856,000)
Accounts payable and accrued liabilities	(271,000)	(2,998,000)
Customer advance payments of orders	0	(209,000)
Lease liabilities	(926,000)	(886,000)
Net cash provided by (used in) operating activities	4,277,000	(480,000)
Cash Flows From Investing Activities:
Purchases of property and equipment	(492,000)	(2,524,000)
Cash Flows From Financing Activities:
Proceeds from exercise of stock options	80,000	427,000
Repurchase of common stock	(3,882,000)	(4,408,000)
Net cash used in financing activities	(3,802,000)	(3,981,000)
Decrease in cash and cash equivalents	(17,000)	(6,985,000)
Cash and cash equivalents, beginning of the year	16,307,000	23,292,000
Cash and cash equivalents, end of the year	16,290,000	16,307,000
Supplemental disclosure of cash flow information:
Cash paid for income taxes	$ 443,000	$ 1,824,000