Note 3 - Equity - Share Repurchase Program (Details) - USD ($)		3 Months Ended						44 Months Ended
		Dec. 31, 2022		Sep. 30, 2022		Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2022
Stock Repurchased During Period, Shares		88,741	[1]	20,859	[1]			1,823,669
Average price paid per share (in dollars per share)		$ 5.05	[1]	$ 4.97	[1]			$ 5.89
Dollars expended by period under the plan		$ 448,266	[1]	$ 103,657	[1]	$ 1,429,698	$ 41,276
Remaining amount available for future share repurchases	[1]	$ 10,265,181		$ 10,713,447				$ 10,265,181

[1] We close our books and records on the last calendar day of each month to align our financial closing with our business processes.