Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Mar. 31, 2019	Dec. 31, 2018	[1]
Current assets:
Cash	$ 4,488,000	$ 7,007,000
Investments	417,000	258,000
Accounts receivable, net of allowance for doubtful accounts of $64,000 and $64,000 as of March 31, 2019 and December 31, 2018	7,202,000	4,935,000
Accounts receivable, related party	837,000	383,000
Inventories	10,407,000	9,878,000
Right-of-use assets	668,000
Prepaid expenses	2,697,000	3,999,000
Total current assets	26,716,000	26,460,000
Property and equipment, net	3,271,000	3,244,000
Goodwill	55,000	55,000
Definite-lived intangible assets, net	15,000	16,000
Right-of-use assets, net of current portion	2,583,000
Equity investment in unconsolidated affiliate	4,757,000	4,480,000
Total assets	37,397,000	34,255,000
Current liabilities:
Accounts payable	743,000	578,000
Accrued liabilities	632,000	1,342,000
Lease liabilities	663,000
Total current liabilities	2,038,000	1,920,000
Lease liabilities, net of current portion	2,632,000
Deferred income tax liabilities, net	141,000	141,000
Total liabilities	4,811,000	2,061,000
Commitments
Shareholders' equity:
Common stock, $.01 par value: 50,000,000 shares authorized; 13,281,018 and 13,502,684 shares outstanding as of March 31, 2019 and December 31, 2018, respectively	133,000	135,000
Additional paid-in capital	1,845,000	2,669,000
Retained earnings	30,608,000	29,390,000
Total shareholders' equity	32,586,000	32,194,000
Total liabilities and shareholders' equity	$ 37,397,000	$ 34,255,000

[1] The condensed consolidated balance sheet as of December 31, 2018 has been prepared using information from the audited consolidated balance sheet as of that date.