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Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)
$ in Thousands
Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Treasury Stock [Member]
AOCI Attributable to Parent [Member]
Total
Beginning balance at Dec. 31, 2017   $ 21,382 $ 228,750 $ 180,543 $ (79,121) $ (840) $ 350,714
Net income       27,034     27,034
Other comprehensive income (loss)           (1,977) (1,977)
Common dividends declared       (17,675)     (17,675)
Equity-based compensation expense     345   602   947
Common stock options exercised     (41)   362   321
Issuance of common stock to 401(k) plan     128   197   325
Purchase of treasury shares         (21,287)   (21,287)
Ending balance at Sep. 30, 2018   21,382 229,182 189,902 (99,247) (2,817) 338,402
Beginning balance at Jun. 30, 2018   21,382 228,949 184,279 (92,904) (2,585) 339,121
Net income       9,100     9,100
Other comprehensive income (loss)           (232) (232)
Common dividends declared       (3,477)     (3,477)
Equity-based compensation expense     194   8   202
Common stock options exercised     (3)   167   164
Issuance of common stock to 401(k) plan     42   54   96
Purchase of treasury shares         (6,572)   (6,572)
Ending balance at Sep. 30, 2018   21,382 229,182 189,902 (99,247) (2,817) 338,402
Beginning balance at Dec. 31, 2018   16,007 122,486 195,793   (1,429) 332,857 [1]
Net income       29,238     29,238
Other comprehensive income (loss)           1,124 1,124
Common dividends declared       (11,165)     (11,165)
Equity-based compensation expense   42 1,180       1,222
Common stock options exercised   8 116       124
Issuance of common stock to 401(k) plan   10 315       325
Repurchase of common shares (487) (15,875) (16,362)
Ending balance at Sep. 30, 2019   15,580 108,222 213,866   (305) 337,363
Beginning balance at Jun. 30, 2019   15,633 109,816 208,618   (381) 333,686
Net income       9,156     9,156
Other comprehensive income (loss)           76 76
Common dividends declared       (3,908)     (3,908)
Equity-based compensation expense   216       216
Common stock options exercised   4 37       41
Issuance of common stock to 401(k) plan   4 95       99
Repurchase of common shares (61) (1,942) (2,003)
Ending balance at Sep. 30, 2019   $ 15,580 $ 108,222 $ 213,866   $ (305) $ 337,363
[1] Derived from audited financial statements