Consolidated Statements of Stockholders’ Equity (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Change in unrealized depreciation on available-for-sale securities, income taxes (in Dollars)	$ (858)	$ 1,075	$ (2,103)
Stock issued as bonus, shares	95,520	133,880	75,006
Vesting bonus shares, net of forfeitures	16,664	1,560	829
Stock issued for employee stock purchase plan	6,528	4,897	5,244
Exercise of stock options, shares	71,368	64,720	24,290
Securities exchanged under stock option plan	4,350	5,220	669
Cash dividends, per share (in Dollars per share)	$ 0.92	$ 0.88	$ 0.84
Stock issued for acquisition – shares	66,000
Common Stock [Member]
Repurchase of common stock			419,564
Delta Trust [Member]
Stock issued for acquisition – shares		1,629,515
Community First Bancshares, Inc. [Member] | Preferred Stock [Member]
Stock issued for acquisition – shares	30,852
Community First Bancshares, Inc. [Member] | Common Stock [Member]
Stock issued for acquisition – shares	6,552,915
Liberty [Member] | Common Stock [Member]
Stock issued for acquisition – shares	5,181,337
Ozark Trust & Investment Corporation [Member] | Common Stock [Member]
Stock issued for acquisition – shares	339,290