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Derivatives and Hedging Activities (Schedule of Cash Flow Hedge Included in Accumulated Other Comprehensive Income (Loss), Net of Income Taxes) (Details) - Interest Rate Swap [Member] - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Derivative Instruments, Gain (Loss) [Line Items]        
Net interest expense recognized as a result of interest rate swap $ 64 $ 0 $ 133 $ 0
Unrealized gain (loss) in fair value of interest rate swap 447 0 424 0
Net increase (decrease) in accumulated other comprehensive income (loss) 511 0 557 0
Income tax effect 191 0 208 0
Net increase (decrease) in accumulated other comprehensive income (loss), net of tax $ 320 $ 0 $ 349 $ 0