Net Loss per Share - Basic and Diluted Computation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2019
Numerator:
Net loss	$ (2,068)	$ (2,238)	$ (7,500)
Denominator:
Denominator for basic and diluted net loss per share — weighted average common stock outstanding	5,591	4,073
Basic and diluted net loss per common share:
Net loss	$ (0.37)	$ (0.55)