Note 5 - Credit Quality and the Allowance for Loan and Lease Losses (Detail) - Impaired Loans (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Recorded Investment:
Total Loans Held for Investment	$ 245,490	$ 225,970	$ 245,289
Construction and Land Development [Member] | Recorded Investment [Member] | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With an Allowance Recorded	294	0	385
Construction and Land Development [Member] | Recorded Investment [Member] | Impaired Loans With No Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With No Allowance Recorded		0	170
Construction and Land Development [Member] | Recorded Investment [Member] | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	294	0	555
Construction and Land Development [Member] | Recorded Investment [Member] | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	10,390	12,224	8,985
Loans Collectively Evaluated For Impairment	10,390	12,224	8,985
Construction and Land Development [Member] | Recorded Investment [Member] | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality	2,027	2,881	2,455
Construction and Land Development [Member] | Recorded Investment [Member] | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	12,711	15,105	11,995
Construction and Land Development [Member] | Unpaid Principal Balance [Member] | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With An Allowance Recorded	294	0	404
Construction and Land Development [Member] | Unpaid Principal Balance [Member] | Impaired Loans With No Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With No Allowance Recorded		0	177
Construction and Land Development [Member] | Unpaid Principal Balance [Member] | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	294	0	581
Construction and Land Development [Member] | Unpaid Principal Balance [Member] | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	10,390	12,224	8,985
Loans Collectively Evaluated For Impairment	10,390	12,224	8,985
Construction and Land Development [Member] | Unpaid Principal Balance [Member] | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality	5,435	6,630	6,264
Construction and Land Development [Member] | Unpaid Principal Balance [Member] | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	16,119	18,854	15,830
Construction and Land Development [Member] | Related Allowance for Loan and Lease Losses (Member) | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With An Allowance Recorded	93	0	103
Construction and Land Development [Member] | Related Allowance for Loan and Lease Losses (Member) | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	93	0	103
Construction and Land Development [Member] | Related Allowance for Loan and Lease Losses (Member) | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	279	149	218
Construction and Land Development [Member] | Related Allowance for Loan and Lease Losses (Member) | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality		0
Construction and Land Development [Member] | Related Allowance for Loan and Lease Losses (Member) | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	372	149	321
Construction and Land Development [Member] | Average Recorded Investment in Impaired Loans (Member) | Impaired Loans With An Allowance Recorded (Member)
Average Recorded Investment in Impaired Loans:
Impaired Loans With An Allowance Recorded	299		198
Construction and Land Development [Member] | Average Recorded Investment in Impaired Loans (Member) | Impaired Loans With No Allowance Recorded (Member)
Average Recorded Investment in Impaired Loans:
Impaired Loans With No Allowance Recorded			533
Construction and Land Development [Member] | Average Recorded Investment in Impaired Loans (Member) | Individually Evaluated for Impairment [Member]
Average Recorded Investment in Impaired Loans:
Total Loans Individually Evaluated For Impairment	299		731
Construction and Land Development [Member] | Interest Income Recognized (Member) | Impaired Loans With An Allowance Recorded (Member)
Interest Income Recognized on Impaired Loans:
Impaired Loans With An Allowance Recorded		0	0
Construction and Land Development [Member] | Interest Income Recognized (Member) | Impaired Loans With No Allowance Recorded (Member)
Interest Income Recognized on Impaired Loans:
Impaired Loans With No Allowance Recorded			0
Construction and Land Development [Member] | Interest Income Recognized (Member) | Individually Evaluated for Impairment [Member]
Interest Income Recognized on Impaired Loans:
Total Loans Individually Evaluated For Impairment			0
Owner Occupied [Member] | Recorded Investment [Member] | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With an Allowance Recorded	553	0	686
Owner Occupied [Member] | Recorded Investment [Member] | Impaired Loans With No Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With No Allowance Recorded	894	1,571	1,599
Owner Occupied [Member] | Recorded Investment [Member] | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	1,447	1,571	2,285
Owner Occupied [Member] | Recorded Investment [Member] | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	49,348	51,429	51,837
Loans Collectively Evaluated For Impairment	49,348	51,429	51,837
Owner Occupied [Member] | Recorded Investment [Member] | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality	15,547	16,975	16,906
Owner Occupied [Member] | Recorded Investment [Member] | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	66,342	69,975	71,028
Owner Occupied [Member] | Unpaid Principal Balance [Member] | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With An Allowance Recorded	553	0	731
Owner Occupied [Member] | Unpaid Principal Balance [Member] | Impaired Loans With No Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With No Allowance Recorded	894	1,615	1,745
Owner Occupied [Member] | Unpaid Principal Balance [Member] | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	1,447	1,615	2,476
Owner Occupied [Member] | Unpaid Principal Balance [Member] | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	49,348	51,429	51,837
Loans Collectively Evaluated For Impairment	49,348	51,429	51,837
Owner Occupied [Member] | Unpaid Principal Balance [Member] | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality	17,315	18,799	18,575
Owner Occupied [Member] | Unpaid Principal Balance [Member] | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	68,110	71,843	72,888
Owner Occupied [Member] | Related Allowance for Loan and Lease Losses (Member) | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With An Allowance Recorded	24	0	53
Owner Occupied [Member] | Related Allowance for Loan and Lease Losses (Member) | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	24	0	53
Owner Occupied [Member] | Related Allowance for Loan and Lease Losses (Member) | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	333	192	410
Owner Occupied [Member] | Related Allowance for Loan and Lease Losses (Member) | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality		64
Owner Occupied [Member] | Related Allowance for Loan and Lease Losses (Member) | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	357	256	463
Owner Occupied [Member] | Average Recorded Investment in Impaired Loans (Member) | Impaired Loans With An Allowance Recorded (Member)
Average Recorded Investment in Impaired Loans:
Impaired Loans With An Allowance Recorded	561		655
Impaired Loans With No Allowance Recorded	905
Owner Occupied [Member] | Average Recorded Investment in Impaired Loans (Member) | Impaired Loans With No Allowance Recorded (Member)
Average Recorded Investment in Impaired Loans:
Impaired Loans With No Allowance Recorded		1,606	1,378
Owner Occupied [Member] | Average Recorded Investment in Impaired Loans (Member) | Individually Evaluated for Impairment [Member]
Average Recorded Investment in Impaired Loans:
Total Loans Individually Evaluated For Impairment	1,466	1,606	2,033
Owner Occupied [Member] | Interest Income Recognized (Member) | Impaired Loans With An Allowance Recorded (Member)
Interest Income Recognized on Impaired Loans:
Impaired Loans With An Allowance Recorded		0	0
Owner Occupied [Member] | Interest Income Recognized (Member) | Impaired Loans With No Allowance Recorded (Member)
Interest Income Recognized on Impaired Loans:
Impaired Loans With No Allowance Recorded		0	0
Owner Occupied [Member] | Interest Income Recognized (Member) | Individually Evaluated for Impairment [Member]
Interest Income Recognized on Impaired Loans:
Total Loans Individually Evaluated For Impairment		0	0
Non Owner Occupied [Member] | Recorded Investment [Member] | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With an Allowance Recorded	733	0	749
Non Owner Occupied [Member] | Recorded Investment [Member] | Impaired Loans With No Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With No Allowance Recorded		0	0
Non Owner Occupied [Member] | Recorded Investment [Member] | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	733	0	749
Non Owner Occupied [Member] | Recorded Investment [Member] | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	57,294	48,512	57,058
Loans Collectively Evaluated For Impairment	57,294	48,512	57,058
Non Owner Occupied [Member] | Recorded Investment [Member] | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality	11,613	11,961	11,554
Non Owner Occupied [Member] | Recorded Investment [Member] | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	69,640	60,473	69,361
Non Owner Occupied [Member] | Unpaid Principal Balance [Member] | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With An Allowance Recorded	733	0	763
Non Owner Occupied [Member] | Unpaid Principal Balance [Member] | Impaired Loans With No Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With No Allowance Recorded		0	0
Non Owner Occupied [Member] | Unpaid Principal Balance [Member] | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	733	0	763
Non Owner Occupied [Member] | Unpaid Principal Balance [Member] | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	57,294	48,512	57,058
Loans Collectively Evaluated For Impairment	57,294	48,512	57,058
Non Owner Occupied [Member] | Unpaid Principal Balance [Member] | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality	13,114	13,792	13,184
Non Owner Occupied [Member] | Unpaid Principal Balance [Member] | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	71,141	62,304	71,005
Non Owner Occupied [Member] | Related Allowance for Loan and Lease Losses (Member) | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With An Allowance Recorded	54	0	66
Non Owner Occupied [Member] | Related Allowance for Loan and Lease Losses (Member) | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	54	0	66
Non Owner Occupied [Member] | Related Allowance for Loan and Lease Losses (Member) | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	545	539	664
Non Owner Occupied [Member] | Related Allowance for Loan and Lease Losses (Member) | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality		0
Non Owner Occupied [Member] | Related Allowance for Loan and Lease Losses (Member) | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	599	539	730
Non Owner Occupied [Member] | Average Recorded Investment in Impaired Loans (Member) | Impaired Loans With An Allowance Recorded (Member)
Average Recorded Investment in Impaired Loans:
Impaired Loans With An Allowance Recorded	742		303
Non Owner Occupied [Member] | Average Recorded Investment in Impaired Loans (Member) | Impaired Loans With No Allowance Recorded (Member)
Average Recorded Investment in Impaired Loans:
Impaired Loans With No Allowance Recorded		0	109
Non Owner Occupied [Member] | Average Recorded Investment in Impaired Loans (Member) | Individually Evaluated for Impairment [Member]
Average Recorded Investment in Impaired Loans:
Total Loans Individually Evaluated For Impairment	742		412
Non Owner Occupied [Member] | Interest Income Recognized (Member) | Impaired Loans With An Allowance Recorded (Member)
Interest Income Recognized on Impaired Loans:
Impaired Loans With An Allowance Recorded		0	0
Non Owner Occupied [Member] | Interest Income Recognized (Member) | Impaired Loans With No Allowance Recorded (Member)
Interest Income Recognized on Impaired Loans:
Impaired Loans With No Allowance Recorded		0	1
Non Owner Occupied [Member] | Interest Income Recognized (Member) | Individually Evaluated for Impairment [Member]
Interest Income Recognized on Impaired Loans:
Total Loans Individually Evaluated For Impairment		0	1
Residential Real Estate [Member] | Recorded Investment [Member] | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With an Allowance Recorded	892	189	894
Residential Real Estate [Member] | Recorded Investment [Member] | Impaired Loans With No Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With No Allowance Recorded		0	0
Residential Real Estate [Member] | Recorded Investment [Member] | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	892	189	894
Residential Real Estate [Member] | Recorded Investment [Member] | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	24,749	26,516	25,613
Loans Collectively Evaluated For Impairment	24,749	26,516	25,613
Residential Real Estate [Member] | Recorded Investment [Member] | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality	4,535	5,362	4,534
Residential Real Estate [Member] | Recorded Investment [Member] | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	30,176	32,067	31,041
Residential Real Estate [Member] | Unpaid Principal Balance [Member] | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With An Allowance Recorded	892	190	899
Residential Real Estate [Member] | Unpaid Principal Balance [Member] | Impaired Loans With No Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With No Allowance Recorded		0	0
Residential Real Estate [Member] | Unpaid Principal Balance [Member] | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	892	190	899
Residential Real Estate [Member] | Unpaid Principal Balance [Member] | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	24,749	26,516	25,613
Loans Collectively Evaluated For Impairment	24,749	26,516	25,613
Residential Real Estate [Member] | Unpaid Principal Balance [Member] | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality	6,438	7,400	6,468
Residential Real Estate [Member] | Unpaid Principal Balance [Member] | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	32,079	34,106	32,980
Residential Real Estate [Member] | Related Allowance for Loan and Lease Losses (Member) | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With An Allowance Recorded	396	128	324
Residential Real Estate [Member] | Related Allowance for Loan and Lease Losses (Member) | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	396	128	324
Residential Real Estate [Member] | Related Allowance for Loan and Lease Losses (Member) | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	593	583	582
Residential Real Estate [Member] | Related Allowance for Loan and Lease Losses (Member) | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality		0
Residential Real Estate [Member] | Related Allowance for Loan and Lease Losses (Member) | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	989	711	906
Residential Real Estate [Member] | Average Recorded Investment in Impaired Loans (Member) | Impaired Loans With An Allowance Recorded (Member)
Average Recorded Investment in Impaired Loans:
Impaired Loans With An Allowance Recorded	893	94	291
Residential Real Estate [Member] | Average Recorded Investment in Impaired Loans (Member) | Impaired Loans With No Allowance Recorded (Member)
Average Recorded Investment in Impaired Loans:
Impaired Loans With No Allowance Recorded		0	782
Residential Real Estate [Member] | Average Recorded Investment in Impaired Loans (Member) | Individually Evaluated for Impairment [Member]
Average Recorded Investment in Impaired Loans:
Total Loans Individually Evaluated For Impairment	893	94	1,073
Residential Real Estate [Member] | Interest Income Recognized (Member) | Impaired Loans With An Allowance Recorded (Member)
Interest Income Recognized on Impaired Loans:
Impaired Loans With An Allowance Recorded	10	0	10
Residential Real Estate [Member] | Interest Income Recognized (Member) | Impaired Loans With No Allowance Recorded (Member)
Interest Income Recognized on Impaired Loans:
Impaired Loans With No Allowance Recorded			0
Residential Real Estate [Member] | Interest Income Recognized (Member) | Individually Evaluated for Impairment [Member]
Interest Income Recognized on Impaired Loans:
Total Loans Individually Evaluated For Impairment	10		10
All Other Real Estate [Member] | Recorded Investment [Member] | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With an Allowance Recorded	26	0	29
All Other Real Estate [Member] | Recorded Investment [Member] | Impaired Loans With No Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With No Allowance Recorded		0	0
All Other Real Estate [Member] | Recorded Investment [Member] | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	26	0	29
All Other Real Estate [Member] | Recorded Investment [Member] | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	12,660	1,889	8,319
Loans Collectively Evaluated For Impairment	12,660	1,889	8,319
All Other Real Estate [Member] | Recorded Investment [Member] | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality		0	0
All Other Real Estate [Member] | Recorded Investment [Member] | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	12,686	1,889	8,348
All Other Real Estate [Member] | Unpaid Principal Balance [Member] | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With An Allowance Recorded	26	0	30
All Other Real Estate [Member] | Unpaid Principal Balance [Member] | Impaired Loans With No Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With No Allowance Recorded		0	0
All Other Real Estate [Member] | Unpaid Principal Balance [Member] | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	26	0	30
All Other Real Estate [Member] | Unpaid Principal Balance [Member] | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	12,660	1,889	8,319
Loans Collectively Evaluated For Impairment	12,660	1,889	8,319
All Other Real Estate [Member] | Unpaid Principal Balance [Member] | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	12,686	1,889	8,349
All Other Real Estate [Member] | Related Allowance for Loan and Lease Losses (Member) | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With An Allowance Recorded	2	0	2
All Other Real Estate [Member] | Related Allowance for Loan and Lease Losses (Member) | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	2	0	2
All Other Real Estate [Member] | Related Allowance for Loan and Lease Losses (Member) | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	63	4	33
All Other Real Estate [Member] | Related Allowance for Loan and Lease Losses (Member) | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality	0	0
All Other Real Estate [Member] | Related Allowance for Loan and Lease Losses (Member) | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	65	4	35
All Other Real Estate [Member] | Average Recorded Investment in Impaired Loans (Member) | Impaired Loans With An Allowance Recorded (Member)
Average Recorded Investment in Impaired Loans:
Impaired Loans With An Allowance Recorded	27	0	6
All Other Real Estate [Member] | Average Recorded Investment in Impaired Loans (Member) | Impaired Loans With No Allowance Recorded (Member)
Average Recorded Investment in Impaired Loans:
Impaired Loans With No Allowance Recorded		0	0
All Other Real Estate [Member] | Average Recorded Investment in Impaired Loans (Member) | Individually Evaluated for Impairment [Member]
Average Recorded Investment in Impaired Loans:
Total Loans Individually Evaluated For Impairment	27	0	6
All Other Real Estate [Member] | Interest Income Recognized (Member) | Impaired Loans With An Allowance Recorded (Member)
Interest Income Recognized on Impaired Loans:
Impaired Loans With An Allowance Recorded		0	0
All Other Real Estate [Member] | Interest Income Recognized (Member) | Impaired Loans With No Allowance Recorded (Member)
Interest Income Recognized on Impaired Loans:
Impaired Loans With No Allowance Recorded		0	0
All Other Real Estate [Member] | Interest Income Recognized (Member) | Individually Evaluated for Impairment [Member]
Interest Income Recognized on Impaired Loans:
Total Loans Individually Evaluated For Impairment		0	0
Commerical and Industrial [Member] | Recorded Investment [Member] | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With an Allowance Recorded	601	450	1,354
Commerical and Industrial [Member] | Recorded Investment [Member] | Impaired Loans With No Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With No Allowance Recorded	217	396	1,298
Commerical and Industrial [Member] | Recorded Investment [Member] | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	818	846	2,652
Commerical and Industrial [Member] | Recorded Investment [Member] | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	46,592	33,153	45,735
Loans Collectively Evaluated For Impairment	46,592	33,153	45,735
Commerical and Industrial [Member] | Recorded Investment [Member] | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality	1,040	2,958	967
Commerical and Industrial [Member] | Recorded Investment [Member] | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	48,450	36,957	49,354
Commerical and Industrial [Member] | Unpaid Principal Balance [Member] | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With An Allowance Recorded	1,347	483	2,040
Commerical and Industrial [Member] | Unpaid Principal Balance [Member] | Impaired Loans With No Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With No Allowance Recorded	217	351	1,427
Commerical and Industrial [Member] | Unpaid Principal Balance [Member] | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	1,564	834	3,467
Commerical and Industrial [Member] | Unpaid Principal Balance [Member] | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	46,592	33,153	45,735
Loans Collectively Evaluated For Impairment	46,592	33,153	45,735
Commerical and Industrial [Member] | Unpaid Principal Balance [Member] | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality	2,369	5,089	2,489
Commerical and Industrial [Member] | Unpaid Principal Balance [Member] | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	50,525	39,076	51,691
Commerical and Industrial [Member] | Related Allowance for Loan and Lease Losses (Member) | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With An Allowance Recorded	721	264	683
Commerical and Industrial [Member] | Related Allowance for Loan and Lease Losses (Member) | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	721	264	683
Commerical and Industrial [Member] | Related Allowance for Loan and Lease Losses (Member) | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	948	1,132	1,052
Commerical and Industrial [Member] | Related Allowance for Loan and Lease Losses (Member) | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality		166
Commerical and Industrial [Member] | Related Allowance for Loan and Lease Losses (Member) | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	1,669	1,562	1,735
Commerical and Industrial [Member] | Average Recorded Investment in Impaired Loans (Member) | Impaired Loans With An Allowance Recorded (Member)
Average Recorded Investment in Impaired Loans:
Impaired Loans With An Allowance Recorded	614	464	791
Impaired Loans With No Allowance Recorded	229
Commerical and Industrial [Member] | Average Recorded Investment in Impaired Loans (Member) | Impaired Loans With No Allowance Recorded (Member)
Average Recorded Investment in Impaired Loans:
Impaired Loans With No Allowance Recorded		383	1,425
Commerical and Industrial [Member] | Average Recorded Investment in Impaired Loans (Member) | Individually Evaluated for Impairment [Member]
Average Recorded Investment in Impaired Loans:
Total Loans Individually Evaluated For Impairment	843	847	2,216
Commerical and Industrial [Member] | Interest Income Recognized (Member) | Impaired Loans With An Allowance Recorded (Member)
Interest Income Recognized on Impaired Loans:
Impaired Loans With An Allowance Recorded		0	0
Commerical and Industrial [Member] | Interest Income Recognized (Member) | Impaired Loans With No Allowance Recorded (Member)
Interest Income Recognized on Impaired Loans:
Impaired Loans With No Allowance Recorded			0
Commerical and Industrial [Member] | Interest Income Recognized (Member) | Individually Evaluated for Impairment [Member]
Interest Income Recognized on Impaired Loans:
Total Loans Individually Evaluated For Impairment			0
Consumer and All Other Loans and Leases [Member] | Recorded Investment [Member] | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With an Allowance Recorded		0	0
Consumer and All Other Loans and Leases [Member] | Recorded Investment [Member] | Impaired Loans With No Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With No Allowance Recorded		0	0
Consumer and All Other Loans and Leases [Member] | Recorded Investment [Member] | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment		0	0
Consumer and All Other Loans and Leases [Member] | Recorded Investment [Member] | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	3,881	3,444	2,435
Loans Collectively Evaluated For Impairment	3,881	3,444	2,435
Consumer and All Other Loans and Leases [Member] | Recorded Investment [Member] | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality	178	186	179
Consumer and All Other Loans and Leases [Member] | Recorded Investment [Member] | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	4,059	3,630	2,614
Consumer and All Other Loans and Leases [Member] | Unpaid Principal Balance [Member] | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With An Allowance Recorded		0	0
Consumer and All Other Loans and Leases [Member] | Unpaid Principal Balance [Member] | Impaired Loans With No Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With No Allowance Recorded		0	0
Consumer and All Other Loans and Leases [Member] | Unpaid Principal Balance [Member] | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment		0	0
Consumer and All Other Loans and Leases [Member] | Unpaid Principal Balance [Member] | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	3,881	3,444	2,435
Loans Collectively Evaluated For Impairment	3,881	3,444	2,435
Consumer and All Other Loans and Leases [Member] | Unpaid Principal Balance [Member] | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality	182	190	183
Consumer and All Other Loans and Leases [Member] | Unpaid Principal Balance [Member] | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	4,063	3,634	2,618
Consumer and All Other Loans and Leases [Member] | Related Allowance for Loan and Lease Losses (Member) | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With An Allowance Recorded		0	0
Consumer and All Other Loans and Leases [Member] | Related Allowance for Loan and Lease Losses (Member) | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment		0	0
Consumer and All Other Loans and Leases [Member] | Related Allowance for Loan and Lease Losses (Member) | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	75	185	51
Consumer and All Other Loans and Leases [Member] | Related Allowance for Loan and Lease Losses (Member) | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality	0	0
Consumer and All Other Loans and Leases [Member] | Related Allowance for Loan and Lease Losses (Member) | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	75	185	51
Consumer and All Other Loans and Leases [Member] | Average Recorded Investment in Impaired Loans (Member) | Impaired Loans With An Allowance Recorded (Member)
Average Recorded Investment in Impaired Loans:
Impaired Loans With An Allowance Recorded		0	0
Consumer and All Other Loans and Leases [Member] | Average Recorded Investment in Impaired Loans (Member) | Impaired Loans With No Allowance Recorded (Member)
Average Recorded Investment in Impaired Loans:
Impaired Loans With No Allowance Recorded		0	0
Consumer and All Other Loans and Leases [Member] | Average Recorded Investment in Impaired Loans (Member) | Individually Evaluated for Impairment [Member]
Average Recorded Investment in Impaired Loans:
Total Loans Individually Evaluated For Impairment		0	0
Consumer and All Other Loans and Leases [Member] | Interest Income Recognized (Member) | Impaired Loans With An Allowance Recorded (Member)
Interest Income Recognized on Impaired Loans:
Impaired Loans With An Allowance Recorded		0	0
Consumer and All Other Loans and Leases [Member] | Interest Income Recognized (Member) | Impaired Loans With No Allowance Recorded (Member)
Interest Income Recognized on Impaired Loans:
Impaired Loans With No Allowance Recorded		0	0
Consumer and All Other Loans and Leases [Member] | Interest Income Recognized (Member) | Individually Evaluated for Impairment [Member]
Interest Income Recognized on Impaired Loans:
Total Loans Individually Evaluated For Impairment		0	0
Unallocated [Member] | Related Allowance for Loan and Lease Losses (Member) | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	111	156	1
Unallocated [Member] | Related Allowance for Loan and Lease Losses (Member) | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	111	156	1
Recorded Investment [Member] | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With an Allowance Recorded	3,099	639	4,097
Recorded Investment [Member] | Impaired Loans With No Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With No Allowance Recorded	1,111	1,967	3,067
Recorded Investment [Member] | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	4,210	2,606	7,164
Recorded Investment [Member] | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	204,914	177,167	199,982
Loans Collectively Evaluated For Impairment	204,914	177,167	199,982
Recorded Investment [Member] | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality	34,940	40,323	36,595
Recorded Investment [Member] | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	244,064	220,096	243,741
Unpaid Principal Balance [Member] | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With An Allowance Recorded	3,845	673	4,867
Unpaid Principal Balance [Member] | Impaired Loans With No Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With No Allowance Recorded	1,111	1,966	3,349
Unpaid Principal Balance [Member] | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	4,956	2,639	8,216
Unpaid Principal Balance [Member] | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	204,914	177,167	199,982
Loans Collectively Evaluated For Impairment	204,914	177,167	199,982
Unpaid Principal Balance [Member] | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality	44,853	51,900	47,163
Unpaid Principal Balance [Member] | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	254,723	231,706	255,361
Related Allowance for Loan and Lease Losses (Member) | Impaired Loans With An Allowance Recorded (Member)
Recorded Investment:
Impaired Loans With An Allowance Recorded	1,290	392	1,231
Related Allowance for Loan and Lease Losses (Member) | Individually Evaluated for Impairment [Member]
Recorded Investment:
Total Loans Individually Evaluated For Impairment	1,290	392	1,231
Related Allowance for Loan and Lease Losses (Member) | Collectively Evaluated for Impairment [Member]
Recorded Investment:
Loans Collectively Evaluated For Impairment	2,947	2,940	3,011
Related Allowance for Loan and Lease Losses (Member) | Acquired with Deteriorated Credit Quality [Member]
Recorded Investment:
Loans Acquired With Deteriorated Credit Quality		230
Related Allowance for Loan and Lease Losses (Member) | Loans Held for Investment (Member)
Recorded Investment:
Total Loans Held for Investment	4,237	3,562	4,242
Average Recorded Investment in Impaired Loans (Member) | Impaired Loans With An Allowance Recorded (Member)
Average Recorded Investment in Impaired Loans:
Impaired Loans With An Allowance Recorded	3,136	558	2,244
Impaired Loans With No Allowance Recorded	1,134
Average Recorded Investment in Impaired Loans (Member) | Impaired Loans With No Allowance Recorded (Member)
Average Recorded Investment in Impaired Loans:
Impaired Loans With No Allowance Recorded		1,989	4,227
Average Recorded Investment in Impaired Loans (Member) | Individually Evaluated for Impairment [Member]
Average Recorded Investment in Impaired Loans:
Total Loans Individually Evaluated For Impairment	4,270	2,547	6,471
Interest Income Recognized (Member) | Impaired Loans With An Allowance Recorded (Member)
Interest Income Recognized on Impaired Loans:
Impaired Loans With An Allowance Recorded	10	0	10
Interest Income Recognized (Member) | Impaired Loans With No Allowance Recorded (Member)
Interest Income Recognized on Impaired Loans:
Impaired Loans With No Allowance Recorded			1
Interest Income Recognized (Member) | Individually Evaluated for Impairment [Member]
Interest Income Recognized on Impaired Loans:
Total Loans Individually Evaluated For Impairment	$ 10		$ 11