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Income Taxes (Details 4) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Liability for uncertain tax positions    
Balance at the beginning of the period $ 430,000 $ 424,000
Resolution of prior year items (3,000)  
Increases due to current year positions 10,000  
Reductions as a result of filing state tax returns   (13,000)
Increases due to interest 21,000 19,000
Balance at the end of the period $ 458,000 $ 430,000