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Goodwill and Intangible Assets (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Goodwill and Intangible Assets (Textual)        
Amortization expense on its finite-lived intangible assets $ 1,400 $ 2,400 $ 3,100 $ 4,800