Loss Per Common Share - 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	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Net loss	$ (14,056)	$ (19,242)
Loss attributable to common shareholders for diluted earnings per share	$ (14,056)	$ (19,242)
Weighted average number of common share equivalents:
Common shares used in basic loss per share	13,358,930	13,525,179
Total weighted average common shares and common share equivalents used in diluted loss per share	13,358,930	13,525,179
Loss per shares:
Basic	$ (1.05)	$ (1.42)
Diluted	$ (1.05)	$ (1.42)