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Derivative Financial Instruments (Details) - USD ($)
3 Months Ended
Jan. 23, 2014
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Derivatives, Fair Value [Line Items]        
Hedge ineffectiveness gain (loss)   $ 0 $ 0  
Fair value of interest rate swap liability   $ (502,000)   $ (278,000)
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 value   $ 6,200,000    
Fixed interest rate (in hundredths) 2.86%      
Unrealized net gains recorded in Accumulated other comprehensive loss   $ 500,000    
Interest Rate Swap Contracts | One Month LIBOR        
Derivatives, Fair Value [Line Items]        
One month variable interest rate (in hundredths)   0.92%    
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)   $ (224,000) (62,000)  
Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)   $ 19,000 $ 6,000