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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Note 5 - Loans - Allowance for Loan Losses by Portfolio Segment and Based on Impairment Evaluation Method (Details) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Loans	$ 2,548,171				$ 2,409,570				$ 2,305,375				$ 2,548,171	$ 2,409,570	$ 2,305,375
Loans individually evaluated for impairment	2,653				7,380				6,269				2,653	7,380	6,269
Loans collectively evaluated for impairment	2,545,518				2,401,714				2,298,482				2,545,518	2,401,714	2,298,482
Balance				$ 24,885				$ 24,007				$ 22,441	24,885	24,007	22,441
Provision for loan losses		$ 735	$ 1,235	735	900	$ 150	$ 600	900	500	$ 1,250	$ 750	500	2,705	2,550	3,000
Charge-offs													(3,012)	(2,429)	(2,493)
Recoveries													956	757	1,059
Balance	25,534				24,885				24,007				25,534	24,885	24,007
Allowance for loans individually evaluated for impairment	42				48				1,267				42	48	1,267
Allowance for loans collectively evaluated for impairment	25,492				24,837				22,740				25,492	24,837	22,740
Financial Asset Acquired with Credit Deterioration [Member]
Loans					476				624					476	624
Commercial and Industrial Portfolio Segment [Member]
Loans	833,524				779,014				736,841				833,524	779,014	736,841
Loans individually evaluated for impairment	220				1,176				2,682				220	1,176	2,682
Loans collectively evaluated for impairment	833,304				777,838				734,139				833,304	777,838	734,139
Balance				11,276				10,483				8,645	11,276	10,483	8,645
Provision for loan losses													2,539	2,373	2,775
Charge-offs													(2,404)	(1,782)	(1,216)
Recoveries													554	202	279
Balance	11,965				11,276				10,483				11,965	11,276	10,483
Allowance for loans individually evaluated for impairment	28				34				1,207				28	34	1,207
Allowance for loans collectively evaluated for impairment	11,937				11,242				9,276				11,937	11,242	9,276
Commercial and Industrial Portfolio Segment [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Loans									20						20
Construction and Development Excluding Undeveloped Land Portfolio Segment [Member]
Loans	225,050				195,912				192,348				225,050	195,912	192,348
Loans individually evaluated for impairment	318				664				538				318	664	538
Loans collectively evaluated for impairment	224,732				195,248				191,810				224,732	195,248	191,810
Balance				1,724				1,923				1,760	1,724	1,923	1,760
Provision for loan losses													36	(199)	275
Charge-offs															(133)
Recoveries															21
Balance	1,760				1,724				1,923				1,760	1,724	1,923
Allowance for loans individually evaluated for impairment
Allowance for loans collectively evaluated for impairment	1,760				1,724				1,923				1,760	1,724	1,923
Undevelopment Land Portfolio Segment [Member]
Loans	30,092				18,988				21,496				30,092	18,988	21,496
Loans individually evaluated for impairment	474				474				474				474	474	474
Loans collectively evaluated for impairment	29,618				18,514				21,022				29,618	18,514	21,022
Balance				521				684				814	521	684	814
Provision for loan losses													231	(163)	(130)
Charge-offs
Recoveries
Balance	752				521				684				752	521	684
Allowance for loans individually evaluated for impairment									1						1
Allowance for loans collectively evaluated for impairment	752				521				683				752	521	683
Real Estate Mortgage Portfolio Segment [Member]
Loans	1,411,447				1,376,788				1,319,520				1,411,447	1,376,788	1,319,520
Loans individually evaluated for impairment	1,641				5,066				2,516				1,641	5,066	2,516
Loans collectively evaluated for impairment	1,409,806				1,371,246				1,316,400				1,409,806	1,371,246	1,316,400
Balance				11,012				10,573				10,875	11,012	10,573	10,875
Provision for loan losses													(261)	383	(68)
Charge-offs													(132)	(98)	(576)
Recoveries													62	154	342
Balance	10,681				11,012				10,573				10,681	11,012	10,573
Allowance for loans individually evaluated for impairment	14				14								14	14
Allowance for loans collectively evaluated for impairment	10,667				10,998				10,573				10,667	10,998	10,573
Real Estate Mortgage Portfolio Segment [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Loans					476				604					476	604
Consumer Portfolio Segment [Member]
Loans	48,058				38,868				35,170				48,058	38,868	35,170
Loans individually evaluated for impairment									59						59
Loans collectively evaluated for impairment	48,058				38,868				35,111				48,058	38,868	35,111
Balance				$ 352				$ 344				$ 347	352	344	347
Provision for loan losses													160	156	148
Charge-offs													(476)	(549)	(568)
Recoveries													340	401	417
Balance	376				352				344				376	352	344
Allowance for loans individually evaluated for impairment									59						59
Allowance for loans collectively evaluated for impairment	$ 376				$ 352				$ 285				$ 376	$ 352	$ 285