Income Taxes (Details 3) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017
Deferred tax assets:
Warranty reserve	$ 206	$ 312
Bad debt reserve	1,629	3,869
Paid time-off accrual	575	821
Insurance reserve	1,608	2,284
Legal reserve	27	82
Net operating loss benefit and credit carryforwards	10,169	9,332
Valuation allowance	(1,638)	(1,719)
Accrued compensation and pension	758	1,346
Stock compensation expense on nonvested deferred shares	2,733	3,731
Accrued losses	171	340
Foreign currency translation and other	1,066	1,080
Total deferred tax assets	17,304	21,478
Deferred tax liabilities:
Tax over book depreciation	8,137	11,446
Tax over book amortization	702	3,325
Branch future liability	3,018	2,538
Receivable holdbacks and other	1,028	912
Total deferred tax liabilities	12,885	18,221
Net deferred tax asset	$ 4,419	$ 3,257