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INCOME TAXES (Details) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Deferred tax liabilities:    
Fixed assets $ (7,218,000) $ (6,839,000)
Total deferred tax liabilities (7,218,000) (6,839,000)
Deferred tax assets:    
Net operating loss carryforwards 3,767,000 3,330,000
Accruals and allowances 233,000 415,000
Tax credits 334,000 298,000
Other - net 77,000 75,000
Total deferred tax assets 4,411,000 4,118,000
Valuation allowance (163,000) (224,000)
Deferred tax assets net of valuation allowance 4,248,000 3,894,000
Net deferred tax liabilities $ (2,970,000) $ (2,945,000)