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Consolidated Statements of Changes in Shareholders’ Equity (Parentheticals) - $ / shares | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Common stock, shares issued |  | 14,618 | 28,634
Cash dividends, per share (in Dollars per share) | $ 0.89 | $ 0.84 | $ 0.73
Common Stock [Member] |  |  |
Common stock, shares issued |  | 14,618 | 28,634
Common stock, shares issued |  | 4,304 | 7,915

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