Calculation of Net Loss and Weighted Average Common Shares and Common Equivalent Shares Outstanding for Computation of Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share [Abstract]
Net loss	$ (4,796)	$ (14,376)	$ (19,005)	$ (37,584)
Loss available to common shareholders	(4,796)	(14,376)	(19,005)	(37,584)
Loss attributable to common shareholders for diluted earnings per share	$ (4,796)	$ (14,376)	$ (19,005)	$ (37,584)
Weighted average number of common share equivalents:
Common shares used in basic loss per share	13,266,316	13,147,016	13,244,242	13,129,196
Total weighted average common shares and common share equivalents used in diluted loss per share	13,266,316	13,147,016	13,244,242	13,129,196
Loss per share:
Basic	$ (0.36)	$ (1.09)	$ (1.43)	$ (2.86)
Diluted	$ (0.36)	$ (1.09)	$ (1.43)	$ (2.86)