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Fair Value of Financial Instruments (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Fair Value of Financial Instruments (Textual) [Abstract]    
Business acquisition obligations $ 4,000 $ 4,162
Bank Loan Obligations [Member]    
Fair Value of Financial Instruments (Textual) [Abstract]    
Fair value of long term debt 33,000 21,600
Business Acquisition Obligations [Member]    
Fair Value of Financial Instruments (Textual) [Abstract]    
Business acquisition obligations $ 4,000 $ 4,200