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Effects of New Accounting Pronouncements Effects of New Accounting Pronouncements (Details) - USD ($)
Sep. 30, 2019
Mar. 31, 2019
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Cash and Cash Equivalents, at Carrying Value $ 71,979,000 $ 71,093,000      
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents $ 72,229,000 $ 71,343,000 $ 57,931,000   $ 63,565,000
Accounting Standards Update 2016-01 [Member]          
Cumulative Effect of New Accounting Principle in Period of Adoption       $ 888,000