Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 17,636,000	$ 23,292,000	[1]
Accounts receivable, net of allowance for doubtful accounts of $64,000 as of September 30, 2021 and $71,000 as of December 31, 2020	3,991,000	8,132,000	[1]
Accounts receivable, related party	1,396,000	905,000	[1]
Inventories, net	23,190,000	16,749,000	[1]
Prepaid expenses	6,562,000	6,225,000	[1]
Total current assets	52,775,000	55,303,000	[1]
Property and equipment, net	6,136,000	4,353,000	[1]
Goodwill	55,000	55,000	[1]
Definite-lived intangible assets, net	4,000	7,000	[1]
Right-of-use assets	2,872,000	3,535,000	[1]
Equity investment in unconsolidated affiliate	6,172,000	5,549,000	[1]
Total assets	68,014,000	68,802,000	[1]
Current liabilities:
Accounts payable	1,029,000	1,983,000	[1]
Accrued liabilities	1,120,000	2,793,000	[1]
Customer advance payments of orders	0	209,000	[1]
Lease liabilities	880,000	867,000	[1]
Total current liabilities	3,029,000	5,852,000	[1]
Lease liabilities, net of current portion	2,046,000	2,719,000	[1]
Deferred income tax liabilities, net	211,000	211,000	[1]
Total liabilities	5,286,000	8,782,000	[1]
Commitments
Shareholders' equity:
Common stock, $.01 par value: 50,000,000 shares authorized; 13,162,341 and 13,419,847 shares outstanding as of September 30, 2021 and December 31, 2020, respectively	132,000	135,000	[1]
Additional paid-in capital	0	409,000	[1]
Retained earnings	62,596,000	59,476,000	[1]
Total shareholders' equity	62,728,000	60,020,000	[1]
Total liabilities and shareholders' equity	$ 68,014,000	$ 68,802,000	[1]

[1] The condensed consolidated balance sheet as of December 31, 2020 has been prepared using information from the audited consolidated balance sheet as of that date.