ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Foreign currency translation:
Balance at beginning of period	$ 819	$ 1,692
Change in cumulative translation adjustment before reclassifications	87	(1,625)
Amounts reclassified from accumulated other comprehensive income	0	752
Income taxes	0	0
Net current period other comprehensive income (loss)	87	(873)
Balance at end of the period	906	819
Retirement plans:
Balance at beginning of period	(2,941)	(1,950)
Amortization of net actuarial loss and prior service cost	168	105
Net actuarial loss arising during the period	(2,053)	(1,096)
Income taxes	0	0
Net current period other comprehensive loss	(1,885)	(991)
Balance at end of the period	(4,826)	(2,941)
Accumulated other comprehensive loss, net of taxes	$ (3,920)	$ (2,122)