Note 1 - General (Details Textual) $ in Thousands	Apr. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)
Financing Receivable, Number of Principal and Interest Payment Deferrals		72
Financing Receivable, Principal and Interest Deferred Payments		$ 37,703
Financing Receivable, Number of Other Modifications		1
Subsequent Event [Member]
Financing Receivable, Number of Principal and Interest Payment Deferrals	221
Financing Receivable, Principal and Interest Deferred Payments	$ 85,883
Financing Receivable, Number of Other Modifications	9
Financing Receivable, Other Modifications	$ 19,700
Financing Receivable, Number of Loans Input to SBA System	717
Financing Receivable, Loans Input to SBA System	$ 56,100
Financing Receivable, Number of Loans Input to SBA System, Approval	575
Financing Receivable, Number of Loans Input to SBA System, Funded	516
Financing Receivable, Loans Input to SBA System, Funded	$ 48,200