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Derivative Financial Instruments (Details) - USD ($)
12 Months Ended
Jan. 23, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Nov. 25, 2015
Derivatives, Fair Value [Line Items]          
Fair value of derivative financial instruments   $ 569,000 $ 503,000    
Hedge ineffectiveness gain (loss)   0 0 $ 0  
Fair value of derivative instrument [Abstract]          
Fair value of interest rate swap   $ (569,000) (503,000)    
Interest Rate Swap Contracts          
Derivatives, Fair Value [Line Items]          
Percentage of Term Loan balance covered under interest rate swap contract 75.00%        
Termination of contract date   Sep. 30, 2023      
Notional amount   $ 7,500,000     $ 9,100,000
Fixed interest rate (in hundredths)   2.86%     1.28%
Unrealized net losses recorded in Accumulated other comprehensive loss   $ 569,000      
Interest Rate Swap Contracts | One Month LIBOR          
Derivatives, Fair Value [Line Items]          
One month variable interest rate (in hundredths)   0.36%      
Interest Rate Swap Contracts | Derivatives in Cash Flow Hedging Relationships | Interest Expense          
Effect of interest rate swap contract accounted for derivative instrument on Consolidated Statements of Income [Abstract]          
Amount of Gain (Loss) Recognized in Accumulated OCI (Effective Portion)   $ (66,000) (503,000) 219,000  
Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)   $ 209,000 $ 205,000 $ 188,000