ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Sep. 30, 2014
Changes in foreign currency translation
Beginning accumulated foreign currency translation	$ 513	$ 2,000	$ 1,692	$ 3,701
Change in cumulative translation adjustment before reclassifications	121	579	(1,204)	(1,074)
Amounts reclassified from accumulated other comprehensive income	11	(223)	157	(271)
Income taxes	0	0	0	0
Net current period other comprehensive income (loss)	132	356	(1,047)	(1,345)
Ending accumulated foreign currency translation	645	2,356	645	2,356
Changes in retirement plans
Beginning accumulated retirement plans benefit cost	(1,897)	(694)	(1,950)	(710)
Amortization of net actuarial loss and prior service cost	26	(3)	79	13
Income taxes	0	0	0	0
Net current period other comprehensive income (loss)	26	(3)	79	13
Ending accumulated retirement plans benefit cost	(1,871)	(697)	(1,871)	(697)
Accumulated other comprehensive (loss) income, net of taxes	$ (1,226)	$ 1,659	$ (1,226)	$ 1,659	$ (258)