Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Mar. 31, 2024	Dec. 31, 2023	[1]
Current assets:
Cash and cash equivalents	$ 18,510,000	$ 20,378,000
Inventories, net	20,769,000	20,131,000
Prepaid expenses	5,627,000	6,010,000
Total current assets	52,389,000	53,064,000
Property and equipment, net	5,426,000	5,587,000
Goodwill	55,000	55,000
Right-of-use assets	9,451,000	4,810,000
Equity investment in unconsolidated affiliate	5,391,000	5,247,000
Total assets	72,712,000	68,763,000
Current liabilities:
Accounts payable	713,000	802,000
Accrued liabilities	449,000	1,103,000
Lease liabilities	903,000	661,000
Total current liabilities	2,065,000	2,566,000
Lease liabilities, net of current portion	8,562,000	4,187,000
Deferred income tax liabilities, net	442,000	442,000
Total liabilities	11,069,000	7,195,000
Commitments and contingincies
Shareholders' equity:
Common stock, $.01 par value: 50,000,000 shares authorized; 11,372,878 and 11,416,212 shares outstanding as of March 31, 2024 and December 31, 2023, respectively	114,000	114,000
Additional paid-in capital	16,861,000	16,339,000
Retained earnings	46,099,000	46,552,000
Accumulated other comprehensive loss	(1,431,000)	(1,437,000)
Total shareholders' equity	61,643,000	61,568,000
Total liabilities and shareholders' equity	72,712,000	68,763,000
Nonrelated Party [Member]
Current assets:
Accounts receivable, net of allowance for doubtful accounts	6,426,000	5,503,000
Related Party [Member]
Current assets:
Accounts receivable, net of allowance for doubtful accounts	$ 1,057,000	$ 1,042,000

[1] The condensed consolidated balance sheet as of December 31, 2023, has been prepared using information from the audited consolidated balance sheet as of that date.