Income Taxes - Components of Income Before Income Taxes and Income Tax Expense (Benefit) (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Income (loss) from continuing operations before income taxes:
United States									$ 25,194	$ 18,443	$ (6,068)
Foreign									92	352	155
Income (loss) from continuing operations before income taxes	$ 8,590	$ 6,999	$ 6,473	$ 3,224	$ 7,982	$ 6,163	$ 3,933	$ 717	25,286	18,795	(5,913)
Federal:
Current									6,707	4,267	3,184
Deferred									(2,627)	(458)	(5,281)
Federal Income Tax Expense (Benefit), Continuing Operations, Total									4,080	3,809	(2,097)
State:
Current									1,839	1,372	594
Deferred									(424)	(921)	(375)
State and Local Income Tax Expense (Benefit), Continuing Operations, Total									1,415	451	219
Foreign:
Current									59	58	(12)
Deferred									(10)	48	49
Foreign, Income Tax expense benefit									49	106	37
Income tax expense (benefit)	$ 1,101	$ 2,642	$ 1,433	$ 368	$ 1,850	$ 1,469	$ 1,047	$ 0	$ 5,544	$ 4,366	$ (1,841)