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Subsequent Events (Details Textual) - USD ($)
Nov. 08, 2018
Nov. 07, 2018
Sep. 30, 2018
Revolving Credit Facility [Member] | Senior Secured First Lien Credit Facility [Member]      
Subsequent Event [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity     $ 140,000,000
Subsequent Event [Member] | Revolving Credit Facility [Member] | Incremental Joinder Agreement No. 2 [Member]      
Subsequent Event [Line Items]      
Agreement start date Nov. 08, 2018    
Subsequent Event [Member] | Revolving Credit Facility [Member] | Incremental Joinder Agreement No. 2 [Member] | Senior Secured First Lien Credit Facility [Member]      
Subsequent Event [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity $ 200,000,000 $ 140,000,000  
Subsequent Event [Member] | Maximum [Member]      
Subsequent Event [Line Items]      
Common stock repurchase, authorized   $ 25,000,000