Allowance For Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014	Dec. 31, 2013	Sep. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Mar. 31, 2014
Allowance for loan losses:
Beginning balance			$ 15,605	$ 16,361	$ 16,361
Charge-offs	$ (1,034)	$ (681)	(2,455)	(3,254)		$ (4,224)
Recoveries	412	18	2,210	712	775
Provision	3,054	220	5,364	1,443	2,693
Ending balance	20,724	15,262	20,724	15,262	15,605	16,361
Collectively evaluated for impairment							$ 17,782		$ 14,970	$ 13,957
Individually evaluated for impairment							2,743		468	1,137
Total allowance for loan losses	20,724	15,262	15,605	16,361	16,361	16,361	20,724	$ 18,292	15,605	15,262	$ 15,705
Loans receivable:
Collectively evaluated for impairment							1,942,442		1,777,900	1,489,416
Individually evaluated for impairment							30,433		7,101	8,630
Total loans held for investment							1,982,280		1,799,155	1,504,998
Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Purchased credit impaired							199		167	168
Loans receivable:
Purchased credit impaired							9,405		14,154	6,952
Commercial & Industrial [Member]
Allowance for loan losses:
Beginning balance			8,145	10,196	10,196
Charge-offs	(981)	(679)	(2,285)	(1,967)		(2,927)
Recoveries	331	10	2,091	65	118
Provision	3,315	(1,283)	3,177	(253)	758
Ending balance	11,128	8,041	11,128	8,041	8,145	10,196
Collectively evaluated for impairment							8,466		7,772	7,006
Individually evaluated for impairment							2,628		373	1,035
Total allowance for loan losses	11,128	8,041	8,145	10,196	10,196	10,196	11,128	8,463	8,145	8,041	9,993
Loans receivable:
Collectively evaluated for impairment							798,220		784,052	722,756
Individually evaluated for impairment							21,217		1,926	2,109
Total loans held for investment							820,337		788,410	725,583
Commercial & Industrial [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Purchased credit impaired							34
Loans receivable:
Purchased credit impaired							900		2,432	718
Owner occupied commercial real estate [Member]
Allowance for loan losses:
Beginning balance			974	874	874
Recoveries				14	14
Provision	204	63	671	(34)	86
Ending balance	1,645	854	1,645	854	974	874
Collectively evaluated for impairment							1,642		971	852
Total allowance for loan losses	1,645	854	974	874	874	874	1,645	1,441	974	854	791
Loans receivable:
Collectively evaluated for impairment							181,348		162,171	131,485
Individually evaluated for impairment							853		173	177
Total loans held for investment							183,224		163,592	132,940
Owner occupied commercial real estate [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Purchased credit impaired							3		3	2
Loans receivable:
Purchased credit impaired							1,023		1,248	1,278
Commerical real estate [Member]
Allowance for loan losses:
Beginning balance			2,942	2,216	2,216
Recoveries	75		76	1	1
Provision	(123)	251	1,225	643	725
Ending balance	4,243	2,860	4,243	2,860	2,942	2,216
Collectively evaluated for impairment							4,089		2,789	2,709
Total allowance for loan losses	4,243	2,860	2,942	2,216	2,216	2,216	4,243	4,291	2,942	2,860	2,609
Loans receivable:
Collectively evaluated for impairment							472,096		329,239	300,939
Individually evaluated for impairment							7,058		2,506	3,047
Total loans held for investment							483,628		339,006	308,700
Commerical real estate [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Purchased credit impaired							154		153	151
Loans receivable:
Purchased credit impaired							4,474		7,261	4,714
Construction, land & land development [Member]
Allowance for loan losses:
Beginning balance			2,633	1,103	1,103
Provision	(381)	1,176	(179)	1,548	1,530
Ending balance	2,454	2,651	2,454	2,651	2,633	1,103
Collectively evaluated for impairment							2,348		2,622	2,636
Individually evaluated for impairment							98
Total allowance for loan losses	2,454	2,651	2,633	1,103	1,103	1,103	2,454	2,835	2,633	2,651	1,475
Loans receivable:
Collectively evaluated for impairment							251,675		239,625	228,441
Individually evaluated for impairment							486		969	1,740
Total loans held for investment							252,206		240,666	230,259
Construction, land & land development [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Purchased credit impaired							8		11	15
Loans receivable:
Purchased credit impaired							45		72	78
Residential mortgage [Member]
Allowance for loan losses:
Beginning balance			645	654	654
Charge-offs	(41)		(41)
Recoveries	4	7	22	15	20
Provision	93	(65)	320	(103)	(29)
Ending balance	946	566	946	566	645	654
Collectively evaluated for impairment							929		645	566
Individually evaluated for impairment							17
Total allowance for loan losses	946	566	645	654	654	654	946	890	645	566	624
Loans receivable:
Collectively evaluated for impairment							227,159		252,648	99,358
Individually evaluated for impairment							674		1,277	1,296
Total loans held for investment							230,796		257,066	100,818
Residential mortgage [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Loans receivable:
Purchased credit impaired							2,963		3,141	164
Consumer and other [Member]
Allowance for loan losses:
Beginning balance			266	1,318	1,318
Charge-offs	(12)	(2)	(129)	(1,287)		(1,297)
Recoveries	2	1	21	617	622
Provision	(54)	78	150	(358)	(377)
Ending balance	308	290	308	290	266	1,318
Collectively evaluated for impairment							308		171	188
Individually evaluated for impairment									95	102
Total allowance for loan losses	$ 308	$ 290	$ 266	$ 1,318	$ 1,318	$ 1,318	308	$ 372	266	290	$ 213
Loans receivable:
Collectively evaluated for impairment							11,944		10,165	6,437
Individually evaluated for impairment							145		250	261
Total loans held for investment							$ 12,089		$ 10,415	$ 6,698