Consolidated Condensed Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net loss	$ (1,657)	$ (299)	$ (4,266)	$ (2,897)
Other comprehensive income (loss):
Foreign currency translation adjustment	245	762	(803)	315
Retirement plan liability adjustment, net of tax	214	210	448	403
Interest rate swap agreement adjustment, net of tax	13	0	29	0
Comprehensive income (loss)	$ (1,185)	$ 673	$ (4,592)	$ (2,179)