Note 11 - Earnings Per Share - Basic and Diluted Earnings Per Share (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income (loss) from continuing operations	$ 23,350	$ (58,195)	$ (16,355,423)	$ (2,472,665)
Discontinued operations, net of tax		(1,426,970)		(1,267,344)
Net income (loss) attributable to common shareholders	$ 23,350	$ (1,485,165)	$ (16,355,423)	$ (3,740,009)
Basic (in shares)	11,079,580	10,361,292	10,955,235	10,361,292
Stock options (in shares)	137,108
Diluted weighted average shares (in shares)	11,216,688	10,361,292	10,955,235	10,361,292
Continuing operations (in dollars per share)	$ 0	$ 0	$ (1.49)	$ (0.24)
Discontinued operations (in dollars per share)		(0.14)		(0.12)
Net income (loss) (in dollars per share)	0	(0.14)	(1.49)	(0.36)
Continuing operations (in dollars per share)	0	0	(1.49)	(0.24)
Discontinued operations (in dollars per share)		(0.14)		(0.12)
Net income (loss) (in dollars per share)	$ 0	$ (0.14)	$ (1.49)	$ (0.36)