Earnings Per Share - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share [Abstract]
Loss from continuing operations	$ (978)	$ 23	$ (14,661)	$ (1,718)	$ (1,562)	$ (58)	$ (1,211)	$ (1,203)	$ (17,333)	$ (4,035)
Loss from discontinued operations, net of tax									0	(1,267)
Net loss attributable to common shareholders									$ (17,333)	$ (5,302)
Basic (in shares)									11,164,000	10,361,000
Diluted (in shares)									11,164,000	10,361,000
Basic
Continuing operations (in dollars per share)	$ (0.09)	$ 0	$ (1.41)	$ (0.17)	$ (0.15)	$ 0	$ (0.12)	$ (0.12)	$ (1.55)	$ (0.39)
Discontinued operations (in dollars per share)									0	(0.12)
Net loss (in dollars per share)									(1.55)	(0.51)
Diluted
Continuing operations (in dollars per share)									(1.55)	(0.39)
Discontinued operations (in dollars per share)									0	(0.12)
Net loss (in dollars per share)									$ (1.55)	$ (0.51)