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Commitments (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Operating lease:      
Lease expiration date Jan. 31, 2014    
2014 $ 163,000    
2015 168,000    
2016 174,000    
2017 180,000    
2018 186,000    
Thereafter 1,294,000    
Rent expense 187,000 200,000 172,000
Employment Agreement One [Member]
     
Purchase Commitment, Excluding Long-term Commitment [Line Items]      
Commitment amount 450,000    
Employment Agreement Two [Member]
     
Purchase Commitment, Excluding Long-term Commitment [Line Items]      
Commitment amount 402,000    
Employment Agreement Three [Member]
     
Purchase Commitment, Excluding Long-term Commitment [Line Items]      
Commitment amount $ 220,000