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Stock Option Plan (Detail Textuals) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Cash received from options exercised $ 108,000 $ 140,000
Stock Option | Incentive Stock Option Plan
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares issuable to members of board of directors and management 238,050  
Annual vesting percentage for common stock granted 20.00%  
Weighted-average remaining contractual term 10 years  
Exercise of stock options (in shares) 7,434 10,400
Cash received from options exercised 108,000 140,000
Total unrecognized compensation cost related to non-vested share-based compensation arrangements granted under the Plan   5,000
Share-based compensation expense recognized 5,000 6,000
Tax benefit related to the share-based compensation expense $ 2,000 $ 3,000