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Interest Rate Swap (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Derivatives, Fair Value [Line Items]    
Interest Rate 4.11%  
Level 2 | Interest Rate Swap    
Derivatives, Fair Value [Line Items]    
Interest Rate 4.11%  
Notional Amount $ 61,561 $ 62,483
Level 2 | Interest Rate Swap | Other Liabilities    
Derivatives, Fair Value [Line Items]    
Fair Value - asset (liability) $ (640)