Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017
Increase (Decrease) in Stockholders' Equity
Other comprehensive income (loss), tax	$ 244	$ (412)
Cash dividends (in dollars per share)	$ 0.24	$ 0.24
Issuance of common stock - non vested shares (in shares)	7,333	3,984
Issuance of common stock - vested shares (in shares)	4,194	5,139
Repurchase of common stock (in shares)	368	382

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Period Type:	duration