Acquired Intangible Assets - Intangible assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Impaired Intangible Assets [Abstract]
Net	$ 28
Customer list
Impaired Intangible Assets [Abstract]
Weighted Average Remaining Amortization Period	4 years	5 years
Gross	$ 90	$ 90
Accumulated Amortization	62	53
Net	$ 28	$ 37