Derivatives (Detail Textuals) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Dec. 31, 2016	Dec. 31, 2016	Jun. 30, 2016
Derivative [Line Items]
Unrecognized losses on derivative instruments recorded in earnings within the next twelve months	$ 362	$ 362
Options | Cash flow hedges
Derivative [Line Items]
Other comprehensive income (loss), unrealized gains (losses) on derivatives	270	304
Unrecognized losses on derivative instruments recorded in earnings within the next twelve months			$ 1,528
Options | Cash flow hedges | Cost of goods sold
Derivative [Line Items]
Realized losses on hedging derivatives recognized in cost of goods sold	$ 393	1,528
Options | Cash flow hedges | Other comprehensive income (loss)
Derivative [Line Items]
Unrecognized gains (losses) on derivative instruments		$ 2,959