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Income Taxes (Details) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Current Assets    
Allowance for doubtful accounts-short term $ 72,000 $ 73,000
Inventory allowance 79,000 79,000
Warranty reserve 10,000 10,000
Impairment of German Investment 31,000  
Deferred officers compensation 600,000 527,000
Subtotal 792,000 689,000
Valuation allowance (792,000) (689,000)
Current deferred tax asset      
Non-current assets    
Allowance for doubtful accounts-long term 67,000 149,000
Net operating loss carryforward 16,675,000 16,715,000
Subtotal 16,742,000 16,864,000
Valuation allowance (16,742,000) (16,864,000)
Non-current deferred tax asset