Note 14 - Warehouse Credit Facilities - Mortgage Warehouse Credit Facilities (Details) (Parentheticals) - Warehouse Credit Facilities [Member] - London Interbank Offered Rate (LIBOR) [Member]	12 Months Ended
Dec. 31, 2021
Facility A [Member]
Basis spread	1.60%
Facility B [Member]
Basis spread	1.70%
Facility C [Member]
Basis spread	1.60%

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration