INCOME TAXES - Deferred Tax Assets (Liabilities) - Components (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017
Deferred tax assets:
Warranty reserves	$ 2,898	$ 4,392
Repurchase agreements	247	362
Other reserves		121
Unrecognized tax benefits	357	859
Stock compensation	467	336
State net operating loss	130	130
Foreign net operating loss	81	104
Valuation allowance	(211)	(234)
Total deferred tax assets	3,969	6,070
Deferred tax liabilities:
Depreciation	(1,262)	(984)
Intangible asset basis difference	(4,009)	(6,037)
Other	(125)	(2)
Total deferred tax liabilities	(5,396)	(7,023)
Net deferred tax liabilities	$ (1,427)	$ (953)