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Consolidated Statements of Changes in Shareholders’ Equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Statement of Stockholders' Equity [Abstract]
Cash dividends per share (usd per share)	$ 0.20	$ 0.17
Stock-based compensation plans, issuance of stock, shares	4,808	37,462
Compensation expense, issuance of stock	$ 666	$ 499
Issuance of treasury stock, shares	53,367	2,461
Acquisition of treasury stock, shares		35,648

X

- Definition

Amount of increase to additional paid-in capital (APIC) from recognition of equity-based compensation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

+ References

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Gross number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP). Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Number of shares that have been repurchased during the period and are being held in treasury.

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