Note 10 - Other Assets - Mortgage Loans and Other Financing Receivables (Details) $ in Millions	Sep. 30, 2022 USD ($)
Face amount	$ 22.0
Interest rate	10.00%
Financing Receivable Maturing in June 25 [Member]
Face amount	$ 16.5
Interest rate	9.00%
Financing Receivable Maturing in June 29 [Member]
Face amount	$ 19.6
Interest rate	10.00%
Financing Receivable Maturing in May 29 [Member]
Face amount	$ 14.0
Interest rate	8.00%
Financing Receivable Maturing in July 22 [Member]
Face amount	$ 3.0
Interest rate	8.00%