Income Taxes (Details 3) - USD ($) $ in Thousands	Jun. 30, 2015	Jun. 30, 2014
Deferred tax assets:
Warranty reserve	$ 312	$ 234
Bad debt reserve	164	80
Paid time-off accrual	765	712
Insurance reserve	2,178	2,519
Legal reserve	382	356
Net operating loss benefit and credit carryforwards	7,380	4,061
Valuation allowance	(115)	(90)
Accrued compensation and pension	1,059	2,187
Stock compensation expense on nonvested deferred shares	3,080	1,969
Accrued losses	970	1,488
Other-net	897	314
Total deferred tax assets	17,072	13,830
Deferred tax liabilities:
Tax over book depreciation	9,987	8,537
Tax over book amortization	1,658	1,903
Prepaid insurance	160	2,104
Other-net	589	459
Total deferred tax liabilities	14,587	13,003
Net deferred tax asset (liability)	$ 2,485	$ 827