Consolidated Condensed Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net loss	$ (6,202)	$ (1,050)	$ (10,467)	$ (3,947)
Other comprehensive income (loss):
Foreign currency translation adjustment	1,132	(443)	329	(128)
Retirement plan liability adjustment, net of tax	217	134	665	390
Interest rate swap agreement adjustment, net of tax	(1)	(50)	30	(50)
Comprehensive loss	$ (4,854)	$ (1,409)	$ (9,443)	$ (3,735)