Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Sep. 30, 2023	Dec. 31, 2022	[1]
Cash and cash equivalents	$ 18,163,000	$ 16,290,000
Inventories	21,526,000	24,397,000
Prepaid expenses	4,558,000	4,902,000
Total current assets	52,687,000	52,562,000
Property and equipment, net	5,543,000	5,742,000
Goodwill	55,000	55,000
Definite-lived intangible assets, net	0	1,000
Right-of-use assets	1,210,000	1,725,000
Equity investment in unconsolidated affiliate	5,116,000	4,718,000
Total assets	64,611,000	64,803,000
Current liabilities:
Accounts payable	320,000	674,000
Accrued liabilities	885,000	833,000
Lease liabilities	777,000	899,000
Total current liabilities	1,982,000	2,406,000
Lease liabilities, net of current portion	474,000	875,000
Deferred income tax liabilities, net	764,000	764,000
Total liabilities	3,220,000	4,045,000
Shareholders' equity:
Common stock, $.01 par value: 50,000,000 shares authorized; 11,636,446 and 12,226,306 shares outstanding as of September 30, 2023 and December 31, 2022, respectively	117,000	123,000
Retained earnings	62,757,000	62,124,000
Accumulated other comprehensive loss	(1,483,000)	(1,489,000)
Total shareholders' equity	61,391,000	60,758,000
Total liabilities and shareholders' equity	64,611,000	64,803,000
Nonrelated Party [Member]
Accounts receivable, net of allowance for doubtful accounts	7,448,000	5,382,000
Related Party [Member]
Accounts receivable, net of allowance for doubtful accounts	$ 992,000	$ 1,591,000

[1] The condensed consolidated balance sheet as of December 31, 2022, has been prepared using information from the audited consolidated balance sheet as of that date.