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Schedule of Unrecognized Tax Benefits (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Income Tax Disclosure [Abstract]  
Beginning balance $ 682,000us-gaap_UnrecognizedTaxBenefits
Decreases in UTBs taken in prior years 34,000us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
Decreases in UTBs taken in current year 14,000us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions
Balance at end of year $ 730,000us-gaap_UnrecognizedTaxBenefits