ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Sep. 30, 2015
Changes in foreign currency translation
Beginning accumulated foreign currency translation	$ 819	$ 1,692
Change in cumulative translation adjustment before reclassifications	(156)	(407)
Income taxes	0	0
Net current period other comprehensive loss	(156)	(407)
Ending accumulated foreign currency translation	663	1,285
Changes in retirement plans
Beginning accumulated retirement plans benefit cost	(2,941)	(1,950)
Amortization of net actuarial loss and prior service cost	39	26
Income taxes	0	0
Net current period other comprehensive income	39	26
Ending accumulated retirement plans benefit cost	(2,902)	(1,924)
Accumulated other comprehensive loss, net of taxes	$ (2,239)	$ (639)	$ (2,122)