Unaudited Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net loss	$ (1,200)	$ (43)
Other comprehensive income (loss):
Foreign currency translation gain (loss) adjustments	(4)	138
Other comprehensive income (loss)	(4)	138
Total comprehensive income (loss)	$ (1,204)	$ 95