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Note 13 - Commitments and Off-balance-sheet Risk - Exposure to Credit Losses (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Contractual amounts of financial instruments with off-balance sheet risk	$ 1,565,871,000	$ 1,430,195,000
Standby Letters of Credit [Member]
Contractual amounts of financial instruments with off-balance sheet risk	33,109,000	20,543,000
Unused lines of Credit [Member] | Commercial Portfolio Segment [Member]
Contractual amounts of financial instruments with off-balance sheet risk	1,098,951,000	1,019,496,000
Unused lines of Credit [Member] | One to Four Family Mortgages [Member]
Contractual amounts of financial instruments with off-balance sheet risk	64,313,000	59,396,000
Unused lines of Credit [Member] | Consumer Credit Card [Member]
Contractual amounts of financial instruments with off-balance sheet risk	92,146,000	72,495,000
Unused lines of Credit [Member] | Consumer Other Financing Receivable 1 [Member]
Contractual amounts of financial instruments with off-balance sheet risk	64,876,000	30,707,000
Loan Origination Commitments [Member]
Contractual amounts of financial instruments with off-balance sheet risk	$ 212,476,000	$ 227,558,000

X

- Definition

The fair value of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611

+ Details

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