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Condensed Consolidated Balance Sheets (USD $)
Jun. 30, 2012
Dec. 31, 2011
Current assets:    
Cash and cash equivalents $ 1,798,000 $ 1,905,000
Restricted cash (Note 4) 100,000 200,000
Trade accounts receivable, net of allowance for doubtful accounts of $86,000 and $92,000, respectively 444,000 501,000
Inventory, net of reserve for obsolescence of $4,673,000, and $4,233,000, respectively 12,149,000 12,801,000
Prepaid expenses and other current assets 62,000 55,000
Total current assets 14,553,000 15,462,000
Property and equipment, net 4,735,000 4,822,000
Other assets (Note 5) 1,221,000 874,000
Total assets 20,509,000 21,158,000
Current liabilities:    
Trade accounts payable 753,000 793,000
Accrued liabilities 297,000 332,000
Total current liabilities 1,050,000 1,125,000
Long-term debt from related party (Note 6) 1,500,000 1,500,000
Total liabilities 2,550,000 2,625,000
Commitments and contingencies (Notes 6, 8 and 9) 0 0
Shareholders’ equity:    
Preferred stock, $0.001 par value. Authorized 5,000,000 shares; None issued or outstanding 0 0
Additional paid-in capital 10,624,000 10,616,000
Accumulated other comprehensive income 102,000 98,000
Retained earnings 7,061,000 7,631,000
Noncontrolling interest in subsidiary 166,000 182,000
Total shareholders’ equity 17,959,000 18,533,000
Total liabilities and shareholders’ equity 20,509,000 21,158,000
Common Class A [Member]
    
Shareholders’ equity:    
Common Stock, value, issued 5,000 5,000
Common Class B [Member]
    
Shareholders’ equity:    
Common Stock, value, issued $ 1,000 $ 1,000