Allowance For Loan Losses (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Allowance for loan losses:
Beginning balance	$ 15,605	$ 16,361	$ 16,361
Charge-offs	(182)	(2,520)	(4,224)
Recoveries	614	55	(775)
Provision	1,505us-gaap_ProvisionForLoanAndLeaseLosses	1,223us-gaap_ProvisionForLoanAndLeaseLosses	2,693us-gaap_ProvisionForLoanAndLeaseLosses
Ending balance	17,542	15,119	15,605
Collectively evaluated for impairment	16,187	13,057	14,970
Individually evaluated for impairment	433	1,889	468
Purchased credit impaired	922	173	167
Total allowance for loan losses	17,542	15,119	15,605
Loans receivable:
Collectively evaluated for impairment	1,788,141	1,384,412	1,777,900
Individually evaluated for impairment	9,292	12,625	7,101
Purchased credit impaired	13,409	7,238	14,154
Total loans held for investment	1,810,842	1,404,275	1,799,155
Commercial & Industrial [Member]
Allowance for loan losses:
Beginning balance	8,145	10,196	10,196
Charge-offs	(77)	(1,239)	(2,927)
Recoveries	597	50	(118)
Provision	(25)	471	758
Ending balance	8,640	9,478	8,145
Collectively evaluated for impairment	7,625	7,752	7,772
Individually evaluated for impairment	261	1,726	373
Purchased credit impaired	754
Total allowance for loan losses	8,640	9,478	8,145
Loans receivable:
Collectively evaluated for impairment	738,682	668,579	784,052
Individually evaluated for impairment	3,643	6,396	1,926
Purchased credit impaired	2,055	837	2,432
Total loans held for investment	744,380	675,812	788,410
Owner occupied commercial real estate [Member]
Allowance for loan losses:
Beginning balance	974	874	874
Recoveries			(14)
Provision	334	(82)	86
Ending balance	1,308	792	974
Collectively evaluated for impairment	1,305	789	971
Purchased credit impaired	3	3	3
Total allowance for loan losses	1,308	792	974
Loans receivable:
Collectively evaluated for impairment	164,512	150,906	162,171
Individually evaluated for impairment	1,029		173
Purchased credit impaired	1,063	1,609	1,248
Total loans held for investment	166,604	152,515	163,592
Commerical real estate [Member]
Allowance for loan losses:
Beginning balance	2,942	2,216	2,216
Recoveries	1	1	(1)
Provision	923	499	725
Ending balance	3,866	2,716	2,942
Collectively evaluated for impairment	3,712	2,537	2,789
Individually evaluated for impairment		29
Purchased credit impaired	154	150	153
Total allowance for loan losses	3,866	2,716	2,942
Loans receivable:
Collectively evaluated for impairment	359,379	302,715	329,239
Individually evaluated for impairment	547	3,132	2,506
Purchased credit impaired	7,145	4,532	7,261
Total loans held for investment	367,071	310,379	339,006
Construction, land & land development [Member]
Allowance for loan losses:
Beginning balance	2,633	1,103	1,103
Provision	(164)	(24)	1,530
Ending balance	2,469	1,079	2,633
Collectively evaluated for impairment	2,458	1,060	2,622
Purchased credit impaired	11	19	11
Total allowance for loan losses	2,469	1,079	2,633
Loans receivable:
Collectively evaluated for impairment	270,638	150,501	239,625
Individually evaluated for impairment	2,430	1,738	969
Purchased credit impaired	57	88	72
Total loans held for investment	273,125	152,327	240,666
Residential mortgage [Member]
Allowance for loan losses:
Beginning balance	645	654	654
Recoveries	12	3	(20)
Provision	398	66	(29)
Ending balance	1,055	723	645
Collectively evaluated for impairment	883	589	645
Individually evaluated for impairment	172	134
Total allowance for loan losses	1,055	723	645
Loans receivable:
Collectively evaluated for impairment	245,011	105,919	252,648
Individually evaluated for impairment	1,491	1,317	1,277
Purchased credit impaired	3,089	172	3,141
Total loans held for investment	249,591	107,408	257,066
Consumer and other [Member]
Allowance for loan losses:
Beginning balance	266	1,318	1,318
Charge-offs	(105)	(1,281)	(1,297)
Recoveries	4	1	(622)
Provision	39	293	(377)
Ending balance	204	331	266
Collectively evaluated for impairment	204	330	171
Individually evaluated for impairment			95
Purchased credit impaired		1
Total allowance for loan losses	204	331	266
Loans receivable:
Collectively evaluated for impairment	9,919	5,792	10,165
Individually evaluated for impairment	152	42	250
Total loans held for investment	$ 10,071	$ 5,834	$ 10,415

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

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The balance of financing receivables that were acquired with deteriorated credit quality.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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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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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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