Acquired Loans Part 6 (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013		Dec. 31, 2012
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	$ 37,617		$ 10,608
Past Due Greater Than 90 Days	83,469	[1]	10,074	[1]
Total Past Due	121,086		20,682
Nonaccrual	2,197	[2]	1,103	[2]
Current Loans	83,990		111,779
Acquired loans	963,273		133,564
Covered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	3,304		6,213
Past Due Greater Than 90 Days	2,415	[1]	3,724	[1]
Total Past Due	5,719		9,937
Nonaccrual	658	[2]	727	[2]
Current Loans	34,443		41,377
Acquired loans	40,820		52,041
Noncovered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	34,313		4,395
Past Due Greater Than 90 Days	81,054	[1]	6,350	[1]
Total Past Due	115,367		10,745
Nonaccrual	1,539	[2]	376	[2]
Current Loans	805,547		70,402
Acquired loans	922,453		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	260		240
Past Due Greater Than 90 Days	428	[1]	246	[1]
Total Past Due	688		486
Nonaccrual	445	[2]	445	[2]
Current Loans	2,529		2,993
Acquired loans	3,662		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	8,418		0
Past Due Greater Than 90 Days	49,107	[1]	3,622	[1]
Total Past Due	57,525		3,622
Nonaccrual	75	[2]	0	[2]
Current Loans	74,516		6,434
Acquired loans	132,116		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	1,194		1,705
Past Due Greater Than 90 Days	1,337	[1]	1,883	[1]
Total Past Due	2,531		3,588
Nonaccrual	176	[2]	234	[2]
Current Loans	16,192		20,168
Acquired loans	18,899		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	7,902		458
Past Due Greater Than 90 Days	10,223	[1]	1,392	[1]
Total Past Due	18,125		1,850
Nonaccrual	483	[2]	243	[2]
Current Loans	166,320		17,311
Acquired loans	184,928		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	688		3,953
Past Due Greater Than 90 Days	584	[1]	1,539	[1]
Total Past Due	1,272		5,492
Nonaccrual	0	[2]	0	[2]
Current Loans	12,069		12,915
Acquired loans	13,341		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	8,036		3,526
Past Due Greater Than 90 Days	16,857	[1]	1,217	[1]
Total Past Due	24,893		4,743
Nonaccrual	293	[2]	133	[2]
Current Loans	293,417		40,773
Acquired loans	318,603		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	91		221
Past Due Greater Than 90 Days	1	[1]	52	[1]
Total Past Due	92		273
Nonaccrual	2	[2]	9	[2]
Current Loans	2,835		3,285
Acquired loans	2,929		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	262		30
Past Due Greater Than 90 Days	1,326	[1]	44	[1]
Total Past Due	1,588		74
Nonaccrual	247	[2]	0	[2]
Current Loans	33,034		595
Acquired loans	34,869		669
Commercial And Industrial Loans Financing Receivable [Member] | Covered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	81		94
Past Due Greater Than 90 Days	65	[1]	4	[1]
Total Past Due	146		98
Nonaccrual	35	[2]	39	[2]
Current Loans	362		610
Acquired loans	543		747
Commercial And Industrial Loans Financing Receivable [Member] | Noncovered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	9,024		217
Past Due Greater Than 90 Days	3,335	[1]	23	[1]
Total Past Due	12,359		240
Nonaccrual	441	[2]	0	[2]
Current Loans	193,538		2,795
Acquired loans	206,338		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	173		177
Acquired loans	173		177
Consumer Loans Financing Receivable [Member] | Noncovered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	599		164
Past Due Greater Than 90 Days	199	[1]	52	[1]
Total Past Due	798		216
Nonaccrual	0	[2]	0	[2]
Current Loans	26,622		2,394
Acquired loans	27,420		2,610
Other Loans Financing Receivable [Member] | Covered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	990		0
Past Due Greater Than 90 Days	0	[1]	0	[1]
Total Past Due	990		0
Nonaccrual	0	[2]	0	[2]
Current Loans	283		1,229
Acquired loans	1,273		1,229
Other Loans Financing Receivable [Member] | Noncovered [Member]
Acquired Loans, Aging [Abstract]
Past Due 30 - 89 Days	72		0
Past Due Greater Than 90 Days	7	[1]	0	[1]
Total Past Due	79		0
Nonaccrual	0	[2]	0	[2]
Current Loans	18,100		100
Acquired loans	$ 18,179		$ 100

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

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