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Condensed Consolidated Balance Sheets (USD $)
Dec. 31, 2011
Dec. 31, 2010
Current assets:    
Cash and cash equivalents $ 1,905,000 $ 3,095,000
Restricted cash (Note 2) 200,000 200,000
Trade accounts receivable, net of allowance for doubtful accounts of $92,000 and $96,000, respectively 501,000 827,000
Inventory, net of reserve for obsolescence of $4,233,000, and $3,700,000, respectively 12,801,000 12,414,000
Prepaid expenses and other current assets 55,000 91,000
Total current assets 15,462,000 16,627,000
Property and equipment, net (Note 3) 4,822,000 4,977,000
Other assets (Note 4) 874,000 263,000
Total assets 21,158,000 21,867,000
Current liabilities:    
Trade accounts payable 793,000 871,000
Accrued liabilities 332,000 351,000
Current portion of long-term debt from related party (Note 5)   1,500,000
Total current liabilities 1,125,000 2,722,000
Long-term debt from related party (Note 5) 1,500,000  
Total liabilities 2,625,000 2,722,000
Commitments and contingencies (Notes 5, 9 and 12) 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 10,616,000 10,605,000
Accumulated other comprehensive income 98,000 87,000
Retained earnings 7,631,000 8,244,000
Noncontrolling interest in subsidiary 182,000 203,000
Total shareholders’ equity 18,533,000 19,145,000
Total liabilities and shareholders’ equity 21,158,000 21,867,000
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