Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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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.

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Note 3 - Loans - Allowance for Loan Losses by Portfolio Segment and Based on Impairment Evaluation Method (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Dec. 31, 2017
Loans					$ 2,534,483	$ 2,409,570
Loans collectively evaluated for impairment					2,529,709	2,401,714
Loans individually evaluated for impairment					4,774	7,380
Allowance for loan losses	$ 25,222	$ 25,115	$ 25,222	$ 24,007	25,222	24,885
Allowance for loans collectively evaluated for impairment					25,007	24,837
Allowance for loans individually evaluated for impairment					215	48
Balance	24,873	25,115	24,885	24,007
Charge-offs	(561)	(460)	(2,736)	(1,233)
Recoveries	175	143	368	524
Net loans charged-off	(386)	(317)	(2,368)	(709)
Provision for loan losses	735	150	2,705	1,650
Balance	25,222	24,948	25,222	24,948
Financial Asset Acquired with Credit Deterioration [Member]
Loans						476
Commercial and Industrial Portfolio Segment [Member]
Loans					816,252	779,014
Loans collectively evaluated for impairment					815,024	777,838
Loans individually evaluated for impairment					1,228	1,176
Allowance for loan losses	11,101		11,101		11,101	11,276
Allowance for loans collectively evaluated for impairment					10,955	11,242
Allowance for loans individually evaluated for impairment					146	34
Balance			11,276
Charge-offs	(451)	(288)	(2,390)	(770)
Recoveries	62	8	74	128
Provision for loan losses	(627)	(205)	2,141	1,518
Balance	11,101		11,101
Construction and Development Excluding Undeveloped Land Portfolio Segment [Member]
Loans					211,415	195,912
Loans collectively evaluated for impairment					211,035	195,248
Loans individually evaluated for impairment					380	664
Allowance for loan losses	1,969		1,969		1,969	1,724
Allowance for loans collectively evaluated for impairment					1,969	1,724
Allowance for loans individually evaluated for impairment
Balance			1,724
Provision for loan losses	31	119	245	9
Balance	1,969		1,969
Undevelopment Land Portfolio Segment [Member]
Loans					21,692	18,988
Loans collectively evaluated for impairment					21,218	18,514
Loans individually evaluated for impairment					474	474
Allowance for loan losses	582		582		582	521
Allowance for loans collectively evaluated for impairment					582	521
Allowance for loans individually evaluated for impairment
Balance			521
Provision for loan losses	81	(3)	61	(85)
Balance	582		582
Real Estate Mortgage Portfolio Segment [Member]
Loans					1,437,674	1,376,788
Loans collectively evaluated for impairment					1,434,982	1,371,246
Loans individually evaluated for impairment					2,692	5,066
Allowance for loan losses	11,162		11,162		11,162	11,012
Allowance for loans collectively evaluated for impairment					11,093	10,998
Allowance for loans individually evaluated for impairment					69	14
Balance			11,012
Charge-offs	(14)	(11)	(14)	(45)
Recoveries	51	34	57	98
Provision for loan losses	1,210	183	107	54
Balance	11,162		11,162
Real Estate Mortgage Portfolio Segment [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Loans						476
Consumer Portfolio Segment [Member]
Loans					47,450	38,868
Loans collectively evaluated for impairment					47,450	38,868
Allowance for loan losses	408		408		408	352
Allowance for loans collectively evaluated for impairment					408	$ 352
Allowance for loans individually evaluated for impairment
Balance			352
Charge-offs	(96)	(161)	(332)	(418)
Recoveries	62	101	237	298
Provision for loan losses	40	$ 56	151	$ 154
Balance	$ 408		$ 408