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Compensation Plans - 401k, Profit Sharing and Deferred Compensation Plans (Details)
12 Months Ended
May. 17, 2006
item
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Deferred compensation plan      
Employer-matching contribution   $ 0.60  
Defined Contribution Plan, Cost Recognized   $ 48,000 $ 49,000
Deferred Compensation Plan      
Deferred compensation plan      
Requisite deferral as a percentage of annual profit sharing award   50.00%  
Deferred Compensation Plan | Minimum      
Deferred compensation plan      
Distribution period from the year of the first deferral 3 years    
Number of installments for payment under the deferred compensation plan | item 2    
Deferred Compensation Plan | Maximum      
Deferred compensation plan      
Number of installments for payment under the deferred compensation plan | item 5    
2015 Profit Sharing Plan      
Deferred compensation plan      
Percentage of annual pretax income contributed into the pool   15.00%  
Requisite deferral as a percentage of annual profit sharing award   50.00%  
Profit sharing pool reserved   $ 850,000  
Profit Sharing Plan awards deferred into the Deferred Plan to be paid out as stock   $ 425,000 $ 350,000