Acquired Loans Part 6 (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	$ 32,951		$ 10,608
Past Due Greater Than 90 Days	70,613	[1]	10,074	[1]
Total Past Due	103,564		20,682
Nonaccrual	2,993	[2]	1,103	[2]
Current Loans	768,568		111,779
Acquired loans	875,125		133,564
Covered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	3,350		6,213
Past Due Greater Than 90 Days	3,030	[1]	3,724	[1]
Total Past Due	6,380		9,937
Nonaccrual	536	[2]	727	[2]
Current Loans	30,334		41,377
Acquired loans	37,250		52,041
Noncovered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	29,601		4,395
Past Due Greater Than 90 Days	67,583	[1]	6,350	[1]
Total Past Due	97,184		10,745
Nonaccrual	2,457	[2]	376	[2]
Current Loans	738,234		70,402
Acquired loans	837,875		81,523
Real Estate Secured Financing Receivable [Member] | Construction Land Development And Other Financing Receivable [Member] | Covered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	290		240
Past Due Greater Than 90 Days	454	[1]	246	[1]
Total Past Due	744		486
Nonaccrual	445	[2]	445	[2]
Current Loans	1,396		2,993
Acquired loans	2,585		3,924
Real Estate Secured Financing Receivable [Member] | Construction Land Development And Other Financing Receivable [Member] | Noncovered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	4,801		0
Past Due Greater Than 90 Days	37,844	[1]	3,622	[1]
Total Past Due	42,645		3,622
Nonaccrual	71	[2]	0	[2]
Current Loans	63,939		6,434
Acquired loans	106,655		10,056
Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Covered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	1,338		1,705
Past Due Greater Than 90 Days	1,355	[1]	1,883	[1]
Total Past Due	2,693		3,588
Nonaccrual	38	[2]	234	[2]
Current Loans	15,054		20,168
Acquired loans	17,785		23,990
Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Noncovered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	6,273		458
Past Due Greater Than 90 Days	8,825	[1]	1,392	[1]
Total Past Due	15,098		1,850
Nonaccrual	872	[2]	243	[2]
Current Loans	152,603		17,311
Acquired loans	168,573		19,404
Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Covered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	873		3,953
Past Due Greater Than 90 Days	542	[1]	1,539	[1]
Total Past Due	1,415		5,492
Nonaccrual	0	[2]	0	[2]
Current Loans	10,705		12,915
Acquired loans	12,120		18,407
Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Noncovered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	8,053		3,526
Past Due Greater Than 90 Days	14,105	[1]	1,217	[1]
Total Past Due	22,158		4,743
Nonaccrual	293	[2]	133	[2]
Current Loans	279,235		40,773
Acquired loans	301,686		45,649
Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Covered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	431		221
Past Due Greater Than 90 Days	2	[1]	52	[1]
Total Past Due	433		273
Nonaccrual	0	[2]	9	[2]
Current Loans	2,384		3,285
Acquired loans	2,817		3,567
Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Noncovered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	344		30
Past Due Greater Than 90 Days	1,848	[1]	44	[1]
Total Past Due	2,192		74
Nonaccrual	270	[2]	0	[2]
Current Loans	32,589		595
Acquired loans	35,051		669
Commercial And Industrial Loans Financing Receivable [Member] | Covered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	21		94
Past Due Greater Than 90 Days	49	[1]	4	[1]
Total Past Due	70		98
Nonaccrual	53	[2]	39	[2]
Current Loans	355		610
Acquired loans	478		747
Commercial And Industrial Loans Financing Receivable [Member] | Noncovered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	9,531		217
Past Due Greater Than 90 Days	4,844	[1]	23	[1]
Total Past Due	14,375		240
Nonaccrual	951	[2]	0	[2]
Current Loans	171,323		2,795
Acquired loans	186,649		3,035
Consumer Loans Financing Receivable [Member] | Covered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	0		0
Past Due Greater Than 90 Days	0	[1]	0	[1]
Total Past Due	0		0
Nonaccrual	0	[2]	0	[2]
Current Loans	151		177
Acquired loans	151		177
Consumer Loans Financing Receivable [Member] | Noncovered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	508		164
Past Due Greater Than 90 Days	109	[1]	52	[1]
Total Past Due	617		216
Nonaccrual	0	[2]	0	[2]
Current Loans	21,634		2,394
Acquired loans	22,251		2,610
Other Loans Financing Receivable [Member] | Covered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	397		0
Past Due Greater Than 90 Days	628	[1]	0	[1]
Total Past Due	1,025		0
Nonaccrual	0	[2]	0	[2]
Current Loans	289		1,229
Acquired loans	1,314		1,229
Other Loans Financing Receivable [Member] | Noncovered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	91		0
Past Due Greater Than 90 Days	8	[1]	0	[1]
Total Past Due	99		0
Nonaccrual	0	[2]	0	[2]
Current Loans	16,911		100
Acquired loans	$ 17,010		$ 100

[1] Past due 90 days or more but still accruing interest.

[2] Acquired loans not accounted for under FASB ASC Topic 310-30.