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Consolidated Statement of Changes in Stockholders' Equity - USD ($)
$ in Thousands
Additional Paid-In Capital [Member]
Series H Preferred Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Series H Preferred Stock [Member]
Total
Beginning balance at Dec. 31, 2019   $ 215,310 $ 48,429 $ (22,048) $ (2,218)   $ 239,473
Net income     5,247       5,247
Other comprehensive income         2,942   2,942
Cost for issuance of common stock   (126)         (126)
Issuance of stock   3,080         3,080
Redemption of Series D Preferred Stock   (140)         (140)
Exercise of stock options   5         5
Stock-based compensation expense   559         559
Treasury stock purchases       (4,870)     (4,870)
Dividends payable on Series C 6%, Series D 4.5%, Series F 6%, Series G 6%, and Series H 3.5% noncumulative perpetual preferred stock     (682)       (682)
Cash dividends on common stock     (4,688)       (4,688)
Dividend reinvestment plan   209 (209)        
Stock purchase plan   219         219
Ending balance at Jun. 30, 2020   219,116 48,097 (26,918) 724   241,019
Beginning balance at Mar. 31, 2020   215,534 48,168 (23,335) 271   240,638
Net income     2,726       2,726
Other comprehensive income         453   453
Issuance of stock $ 3,080         $ 3,080  
Stock-based compensation expense   280         280
Treasury stock purchases       (3,583)     (3,583)
Dividends payable on Series C 6%, Series D 4.5%, Series F 6%, Series G 6%, and Series H 3.5% noncumulative perpetual preferred stock     (341)       (341)
Cash dividends on common stock     (2,351)       (2,351)
Dividend reinvestment plan   105 (105)        
Stock purchase plan   117         117
Ending balance at Jun. 30, 2020   219,116 48,097 (26,918) 724   241,019
Beginning balance at Dec. 31, 2020   217,999 58,335 (26,918) (205)   249,211
Net income     15,167       15,167
Other comprehensive income         112   112
Stock-based compensation expense   251         251
Treasury stock purchases       (1,279)     (1,279)
Dividends payable on Series C 6%, Series D 4.5%, Series F 6%, Series G 6%, and Series H 3.5% noncumulative perpetual preferred stock     (567)       (567)
Cash dividends on common stock     (4,593)       (4,593)
Dividend reinvestment plan   219 (219)        
Stock purchase plan   222         222
Ending balance at Jun. 30, 2021   218,691 68,123 (28,197) (93)   258,524
Beginning balance at Mar. 31, 2021   218,356 62,777 (27,330) (349)   253,454
Net income     8,050       8,050
Other comprehensive income         256   256
Stock-based compensation expense   116         116
Treasury stock purchases       (867)     (867)
Dividends payable on Series C 6%, Series D 4.5%, Series F 6%, Series G 6%, and Series H 3.5% noncumulative perpetual preferred stock     (284)       (284)
Cash dividends on common stock     (2,312)       (2,312)
Dividend reinvestment plan   108 (108)        
Stock purchase plan   111         111
Ending balance at Jun. 30, 2021   $ 218,691 $ 68,123 $ (28,197) $ (93)   $ 258,524