Note 18 - Segment Information - Segment Information (Details) - USD ($)		12 Months Ended
		Sep. 30, 2020		Sep. 30, 2019
Revenues		$ 229,875,000		$ 212,941,000
Pre-tax income (loss)		(8,079,000)		2,160,000
Identifiable assets		107,237,000		81,207,000
Depreciation and amortization		2,854,000		1,832,000
Interest		90,000		32,000
Capital expenditures		241,000
Capital expenditures				3,124,000
Corporate, Non-Segment [Member]
Revenues		2,000
Pre-tax income (loss)		(5,748,000)	[1]	(5,447,000)	[2]
Identifiable assets	[3]	16,488,000		15,014,000
Depreciation and amortization		687,000		501,000
Interest
Capital expenditures		145,000
Capital expenditures				2,273,000
Brokerage and Advisory Services [Member] | Operating Segments [Member]
Revenues		219,724,000		204,134,000
Pre-tax income (loss)		(2,230,000)		7,522,000
Identifiable assets		81,590,000		61,880,000
Depreciation and amortization		1,451,000		841,000
Interest		90,000		32,000
Capital expenditures		(45,000)
Capital expenditures				776,000
Tax and Accounting Services [Member] | Operating Segments [Member]
Revenues		10,149,000		8,807,000
Pre-tax income (loss)		(101,000)		85,000
Identifiable assets		9,159,000		4,313,000
Depreciation and amortization		716,000		490,000
Interest
Capital expenditures		$ 141,000
Capital expenditures				$ 75,000

[1] Consists of board of director fees and other expenses not allocated to reportable segments by management.

[2] Consists of loss on the change in fair value of warrant liability, executive salaries and other expenses not allocated to reportable segments by management.

[3] Consists principally of deferred tax assets, cash, prepaid and fixed asset balances held at Corporate.