CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Statement of Stockholders' Equity [Abstract]
Cash dividends, common stock (in dollars per share)	$ 0.39	$ 0.33
Exercise of stock options (in shares)	6,650	0
Restricted stock vesting (in shares)	33,691	15,692
Repurchase of restricted stock (in shares)	12,958	4,577
Repurchase of common stock (in shares)	26,800