Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 7,053,000	$ 8,215,000	[1]
Investments	2,426,000	1,606,000	[1]
Accounts receivable, net of allowance for doubtful accounts of $82,000 and $85,000 as of September 30, 2014 and December 31, 2013, respectively	6,148,000	5,071,000	[1]
Inventories	13,671,000	14,140,000	[1]
Prepaid expenses	4,115,000	2,968,000	[1]
Deferred income tax assets	577,000	640,000	[1]
Total current assets	33,990,000	32,640,000	[1]
Property and equipment, net	3,415,000	3,068,000	[1]
Goodwill	55,000	55,000	[1]
Definite-lived intangible assets, net	75,000	92,000	[1]
Equity investment in unconsolidated affiliate	2,924,000	2,708,000	[1]
Total assets	40,459,000	38,563,000	[1]
Current liabilities:
Accounts payable	1,250,000	689,000	[1]
Accrued liabilities	915,000	1,036,000	[1]
Total current liabilities	2,165,000	1,725,000	[1]
Deferred income tax liabilities	1,624,000	1,257,000	[1]
Total liabilities	3,789,000	2,982,000	[1]
Shareholders' equity:
Common stock, $.01 par value: 50,000,000 shares authorized; 18,213,009 and 18,878,109 shares outstanding as of September 30, 2014 and December 31, 2013, respectively	182,000	189,000	[1]
Additional paid-in capital	17,477,000	18,994,000	[1]
Accumulated other comprehensive income	1,108,000	625,000	[1]
Retained earnings	17,903,000	15,773,000	[1]
Total shareholders' equity	36,670,000	35,581,000	[1]
Total liabilities and shareholders' equity	$ 40,459,000	$ 38,563,000	[1]

[1] The condensed consolidated balance sheet as of December 31, 2013 has been prepared using information from the audited consolidated balance sheet as of that date.