Note 4 - Loans/Leases Receivable - Allowance for Estimated Losses on Loans Leases (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Balance, beginning	$ 87,706	$ 78,721
Balance, beginning			$ 84,376
Change in ACL for writedown of LHFS to fair value	(3,545)
Provisions (credited) to expense	11,550	9,636	5,702
Charged off	(9,392)	(7,525)	(4,538)
Recoveries	881	972	1,283
Balance, ending	87,200	87,706	78,721
Accounting Standards Update 2016-13
Balance, beginning			(8,102)
Initial ACL recorded for PCD loans		5,902
Guaranty Bank
Provisions (credited) to expense		11,000
C&I
Balance, beginning			35,421
C&I \| Accounting Standards Update 2016-13
Balance, beginning			(35,421)
C&I \| C&I - revolving
Balance, beginning	4,457	3,907
Provisions (credited) to expense	(233)	(50)	925
Balance, ending	4,224	4,457	3,907
C&I \| C&I - revolving \| Accounting Standards Update 2016-13
Balance, beginning			2,982
Initial ACL recorded for PCD loans		600
C&I \| C&I - other including lease
Balance, beginning	27,753	25,982
Change in ACL for writedown of LHFS to fair value	(5)
Provisions (credited) to expense	7,849	7,364	(1,451)
Charged off	(8,952)	(6,417)	(2,287)
Recoveries	815	817	590
Balance, ending	27,460	27,753	25,982
C&I \| C&I - other including lease \| Accounting Standards Update 2016-13
Balance, beginning			29,130
Initial ACL recorded for PCD loans		7
C&I \| Owner occupied
Balance, beginning	9,965	8,501
Provisions (credited) to expense		(1,023)
Recoveries		6
Balance, ending		9,965	8,501
C&I \| Owner occupied \| Accounting Standards Update 2016-13
Initial ACL recorded for PCD loans		2,481
CRE
Balance, beginning			42,161
CRE \| Accounting Standards Update 2016-13
Balance, beginning			(42,161)
CRE \| Owner occupied
Balance, beginning	9,965	8,501
Provisions (credited) to expense	(1,523)		(198)
Charged off	(222)
Recoveries	3		3
Balance, ending	8,223	9,965	8,501
CRE \| Owner occupied \| Accounting Standards Update 2016-13
Balance, beginning			8,696
CRE \| Non-owner occupied
Balance, beginning	11,749	8,549
Provisions (credited) to expense	(199)	2,220	(1,088)
Charged off		(193)	(1,876)
Recoveries	31	97	85
Balance, ending	11,581	11,749	8,549
CRE \| Non-owner occupied \| Accounting Standards Update 2016-13
Balance, beginning			11,428
Initial ACL recorded for PCD loans		1,076
Construction and land development
Balance, beginning	14,262	16,972
Change in ACL for writedown of LHFS to fair value	(147)
Provisions (credited) to expense	2,789	(2,981)	4,973
Charged off	(50)	(829)
Recoveries	2
Balance, ending	16,856	14,262	16,972
Construction and land development \| Accounting Standards Update 2016-13
Balance, beginning			11,999
Initial ACL recorded for PCD loans		1,100
Multi-family
Balance, beginning	13,186	9,339
Change in ACL for writedown of LHFS to fair value	(3,393)
Provisions (credited) to expense	2,670	3,323	3,653
Charged off			(150)
Recoveries		43
Balance, ending	12,463	13,186	9,339
Multi-family \| Accounting Standards Update 2016-13
Balance, beginning			5,836
Initial ACL recorded for PCD loans		481
Direct financing leases
Balance, beginning	970
Balance, beginning			1,764
Charged off	(252)
Balance, ending	992	970
Direct financing leases \| Accounting Standards Update 2016-13
Balance, beginning			(1,764)
Direct financing leases \| C&I - other including lease
Balance, beginning	970	1,500
Balance, beginning			1,800
Provisions (credited) to expense		269	703
Charged off	252	1,100	458
Recoveries	89	273	258
Balance, ending	992	970	1,500
Financing receivable, credit loss, expense	(185)
Direct financing leases \| C&I - other including lease \| Accounting Standards Update 2016-13
Balance, beginning		685
Residential real estate
Balance, beginning			3,732
Residential real estate \| Accounting Standards Update 2016-13
Balance, beginning			(3,732)
1-4 family real estate
Balance, beginning	4,963	4,541
Provisions (credited) to expense	(51)	306	(603)
Charged off		(21)	(179)
Recoveries	5		281
Balance, ending	4,917	4,963	4,541
1-4 family real estate \| Accounting Standards Update 2016-13
Balance, beginning			5,042
Initial ACL recorded for PCD loans		137
Consumer
Balance, beginning	1,371	930
Balance, beginning			1,298
Provisions (credited) to expense	248	477	(509)
Charged off	(168)	(65)	(46)
Recoveries	25	9	324
Balance, ending	$ 1,476	1,371	930
Consumer \| Accounting Standards Update 2016-13
Balance, beginning			$ (137)
Initial ACL recorded for PCD loans		$ 20

Amount of decrease in allowance for credit loss on financing receivable due to amount written down to fair value.

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- Definition

Amount includes investment in lease, excluding accrued interest, of allowance for credit loss on financing receivable.

+ References

No definition available.

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Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Includes net investment in lease.

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Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Includes net investment in lease.

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Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable and net investment in lease.

+ References

No definition available.

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Amount, excluding accrued interest, of increase (decrease) in allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of credit loss expense (reversal of expense) for financing receivable.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
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-Section 50
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-Publisher FASB
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-Topic 942
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-Name Accounting Standards Codification
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-Paragraph 1
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-Publisher FASB
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