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
	Dec. 31, 2016	Dec. 31, 2015
Earnings Per Share [Abstract]
Net loss	$ (11,705)	$ (11,042)
Loss available to common shareholders	(11,705)	(11,042)
Loss attributable to common shareholders for diluted earnings per share	$ (11,705)	$ (11,042)
Weighted average number of common share equivalents:
Common shares used in basic loss per share	13,094,809	13,024,579
Total weighted average common shares and common share equivalents used in diluted loss per share	13,094,809	13,024,579
Loss per share:
Basic	$ (0.89)	$ (0.85)
Diluted	$ (0.89)	$ (0.85)