Note 4 - Business Combination, Contingent Consideration and Disposal of Branches - Pro Forma Financial Information (Details) - USD ($)	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Winslow Targets [Member]
Net revenues	$ 232,815,000	$ 223,811,000
Net Income (Loss)	(6,187,000)	869,000
Net Income (Loss) attributable to common stockholders	$ (5,911,000)	$ (1,791,000)
Basic (in dollars per share)	$ (0.44)	$ (0.14)
Diluted (in dollars per share)	$ (0.44)	$ (0.14)
United Advisor Acquisition [Member]
Net revenues	$ 239,336,000	$ 222,948,000
Net Income (Loss)	(7,960,000)	2,468,000
Net Income (Loss) attributable to common stockholders	$ (7,684,000)	$ (192,000)
Basic (in dollars per share)	$ (0.57)	$ (0.01)
Diluted (in dollars per share)	$ (0.57)	$ (0.01)