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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parentheticals) - $ / shares | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Cash dividends declared per common share (in dollars per share) | $ 0.06 | $ 0.06
Common Stock [Member] |  |
Cash dividends declared per common share (in dollars per share) | $ 0.06 | $ 0.06
Issuance of shares of common stock as a result of stock purchased under the Employee Stock Purchase Plan (in shares) | 4,446 | 2,669
Issuance of shares of common stock as s result of stock options exercised (in shares) | 25,238 | 13,074
Restricted stock awards (in shares) | 12,719 | 6,860
Exchange of shares of common stock in connection with stock options exercised and restricted stock vested (in shares) | 5,169 | 3,814

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