Consolidated Statements of Stockholders’ Equity (USD $) In Thousands, unless otherwise specified	Preferred Stock [Member] Community First Bancshares, Inc. [Member]	Preferred Stock [Member]	Common Stock [Member] Delta Trust [Member]	Common Stock [Member] Community First Bancshares, Inc. [Member]	Common Stock [Member] Liberty [Member]	Common Stock [Member]	Additional Paid-in Capital [Member] Delta Trust [Member]	Additional Paid-in Capital [Member] Community First Bancshares, Inc. [Member]	Additional Paid-in Capital [Member] Liberty [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Delta Trust [Member]	Community First Bancshares, Inc. [Member]	Liberty [Member]	Total
Balance at Dec. 31, 2013						$ 162				$ 88,095	$ (3,002)	$ 318,577				$ 403,832
Comprehensive income:
Net income												4,352				4,352
Change in unrealized depreciation on available-for-sale securities, net of income taxes											883					883
Comprehensive income																5,235
Stock issued as bonus shares						1				269						270
Vesting bonus shares, net of forfeitures										361						361
Stock issued for employee stock purchase plan										118						118
Exercise of stock options										431						431
Cash Dividends												(3,575)				(3,575)
Balance at Mar. 31, 2014						163				89,274	(2,119)	319,354				406,672
Comprehensive income:
Net income												31,336				31,336
Change in unrealized depreciation on available-for-sale securities, net of income taxes											783					783
Comprehensive income																32,119
Stock issued as bonus shares										172						172
Vesting bonus shares, net of forfeitures										1,062						1,062
Exercise of stock options						2				1,243						1,245
Stock issued for employee stock purchase plan										(213)						(213)
Stock issued for acquisition			16				65,030						65,046
Cash Dividends												(11,784)				(11,784)
Balance at Dec. 31, 2014						181				156,568	(1,336)	338,906				494,319
Comprehensive income:
Net income												8,735				8,735
Change in unrealized depreciation on available-for-sale securities, net of income taxes											3,191					3,191
Comprehensive income																11,926
Stock issued as bonus shares						1				1,564						1,565
Vesting bonus shares, net of forfeitures										384						384
Stock issued for employee stock purchase plan										226						226
Exercise of stock options										280						280
Stock granted under stock-based compensation plans										101						101
Stock issued for employee stock purchase plan										(31)						(31)
Stock issued for acquisition	30,852			65	52			268,277	212,124					299,194	212,176
Dividends on preferred stock												(26)				(26)
Dividends on common stock – $0.23 per share												(6,377)				(6,377)
Balance at Mar. 31, 2015		$ 30,852				$ 299				$ 639,493	$ 1,855	$ 341,238				$ 1,013,737