Note 6 - Loan Servicing (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Servicing Asset, Total	$ 12,141,000		$ 12,141,000		$ 13,965,000
Loan Servicing Fees Net of Amortization	62,000	$ 546,000	426,000	$ 1,846,000
Servicing Asset at Amortized Cost, Other than Temporary Impairments	0	$ 50,000		$ 416,000
Servicing Asset at Amortized Cost, Recovery on Impairments	416,000
Mortgages [Member]
Servicing Asset, Total	15,700,000		15,700,000		10,700,000
SBA Loans [Member]
Servicing Asset, Total	$ 4,300,000		$ 4,300,000		$ 5,000,000.0