Accumulated Other Comprehensive Income (Loss) (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2017 USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at June 30, 2016	$ (545)
Other comprehensive income before reclassifications	(262)
Amounts reclassified from accumulated other comprehensive income (loss)	76
Amount reclassified to gain on sale of discontinued operations	(2,159)
Net current period other comprehensive income (loss)	(2,345)
Balance at June 30, 2017	(2,890)
Pension and Postretirement Benefit Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at June 30, 2016	(1,637)
Other comprehensive income before reclassifications	216
Amounts reclassified from accumulated other comprehensive income (loss)	76
Amount reclassified to gain on sale of discontinued operations	0
Net current period other comprehensive income (loss)	292
Balance at June 30, 2017	(1,345)
Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at June 30, 2016	1,092
Other comprehensive income before reclassifications	(478)
Amounts reclassified from accumulated other comprehensive income (loss)	0
Amount reclassified to gain on sale of discontinued operations	(2,159)
Net current period other comprehensive income (loss)	(2,637)
Balance at June 30, 2017	$ (1,545)