Consolidated Statements of Stockholders’ Equity - USD ($) $ in Thousands	Delta Trust [Member] Common Stock [Member]	Delta Trust [Member] Additional Paid-in Capital [Member]	Delta Trust [Member]	Community First Bancshares, Inc. [Member] Preferred Stock [Member]	Community First Bancshares, Inc. [Member] Common Stock [Member]	Community First Bancshares, Inc. [Member] Additional Paid-in Capital [Member]	Community First Bancshares, Inc. [Member]	Liberty [Member] Common Stock [Member]	Liberty [Member] Additional Paid-in Capital [Member]	Liberty [Member]	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2013												$ 162	$ 88,095	$ (3,002)	$ 318,577	$ 403,832
Cash Dividends															(11,441)	(11,441)
Comprehensive income:
Net income															23,049	23,049
Change in unrealized depreciation on available-for-sale securities, net of income taxes														1,050		1,050
Comprehensive income																24,099
Stock issued as bonus shares												1	441			442
Vesting bonus shares, net of forfeitures													962			962
Stock issued for employee stock purchase plan													118			118
Exercise of stock options												1	1,131			1,132
Stock issued for employee stock purchase plan													(185)			(185)
Stock issued for acquisition	$ 16	$ 65,030	$ 65,046
Balance at Sep. 30, 2014												180	155,592	(1,952)	330,185	484,005
Cash Dividends															(3,918)	(3,918)
Comprehensive income:
Net income															12,639	12,639
Change in unrealized depreciation on available-for-sale securities, net of income taxes														616		616
Comprehensive income																13,255
Vesting bonus shares, net of forfeitures													461			461
Exercise of stock options												1	543			544
Stock issued for employee stock purchase plan													(28)			(28)
Balance at Dec. 31, 2014												181	156,568	(1,336)	338,906	494,319
Comprehensive income:
Net income															50,505	50,505
Change in unrealized depreciation on available-for-sale securities, net of income taxes														4,054		4,054
Comprehensive income																54,559
Stock issued as bonus shares												1	1,872			1,873
Vesting bonus shares, net of forfeitures													1,225			1,225
Stock issued for employee stock purchase plan													226			226
Exercise of stock options													1,464			1,464
Stock granted under stock-based compensation plans													786			786
Stock issued for employee stock purchase plan													(142)			(142)
Stock issued for acquisition				$ 30,852	$ 65	$ 268,277	$ 299,194	$ 52	$ 212,124	$ 212,176
Dividends on preferred stock															(180)	(180)
Dividends on common stock – $0.69 per share															(20,059)	(20,059)
Balance at Sep. 30, 2015											$ 30,852	$ 299	$ 642,400	$ 2,718	$ 369,172	$ 1,045,441