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Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands | Preferred Stock [Member] | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | AOCI Attributable to Parent [Member] | Treasury Stock [Member] | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balances | $ 39 | $ 100,926 | $ 1,619,816 | $ (218,089) | $ (23,373) | $ (18,042) | $ 1,461,277
Balance at Dec. 31, 2017 | 39 | 100,926 | 1,619,816 | (218,089) | (23,373) | (18,042) | 1,461,277
Net income (loss) | 0 | 0 | 0 | (26,563) | 0 | 0 | (26,563)
Change in accounting for marketable equity securities | 0 | 0 | 0 | 1,289 | (1,289) | 0 | 0
Stock issued to directors | 0 | 40 | 553 | 0 | 0 | 0 | 593
Common stock issued for cash, net of offering costs | 0 | 641 | 6,105 | 0 | 0 | 0 | 6,746
Series B Preferred Stock dividends declared |  |  |  | (552) |  |  | (552)
Stock issued for 401(k) match | 0 | 267 | 3,438 | 0 | 0 | 0 | 3,705
Restricted stock units granted |  |  | 5,649 |  |  |  | 5,649
Common stock and warrants issued for purchase of another company | 0 | 18,819 | 233,725 | 0 | 0 | 0 | 252,544
Common stock dividends declared | 0 | 0 | 0 | (4,393) | 0 | 0 | (4,393)
Common stock issued for employee incentive compensation | 0 | 309 | 4,554 | 0 | 0 | (1,308) | 3,555
Common stock issued to pension plans | 0 | 684 | 6,911 | 0 | 0 | 0 | 7,595
Restricted stock unit distributions | 0 | 270 | (270) | 0 | 0 | (1,386) | (1,386)
Other comprehensive income (loss) | 0 | 0 | 0 | 0 | (17,807) | 0 | (17,807)
Balances | 39 | 100,926 | 1,619,816 | (218,089) | (23,373) | (18,042) | 1,461,277
Balances | 39 | 121,956 | 1,880,481 | (248,308) | (42,469) | (20,736) | 1,690,963
Balance at Dec. 31, 2018 | 39 | 121,956 | 1,880,481 | (248,308) | (42,469) | (20,736) | 1,690,963
Net income (loss) | 0 | 0 | 0 | (99,557) | 0 | 0 | (99,557)
Stock issued to directors | 0 | 63 | 392 | 0 | 0 | 0 | 455
Common stock issued for cash, net of offering costs | 0 | 5,353 | 43,666 | 0 | 0 | 0 | 49,019
Series B Preferred Stock dividends declared | 0 | 0 | 0 | (552) | 0 | 0 | (552)
Stock issued for 401(k) match | 0 | 470 | 3,392 | 0 | 0 | 0 | 3,862
Restricted stock units granted | 0 | 0 | 5,213 | 0 | 0 | 0 | 5,213
Common stock dividends declared | 0 | 0 | 0 | (4,914) | 0 | 0 | (4,914)
Common stock issued for employee incentive compensation | 0 | 899 | 7,375 | 0 | 0 | (1,595) | 6,679
Common stock issued to pension plans | 0 | 596 | 3,004 | 0 | 0 | 0 | 3,600
Restricted stock unit distributions | 0 | 291 | (291) | 0 | 0 | (636) | (636)
Other comprehensive income (loss) | 0 | 0 | 0 | 0 | 5,159 | 0 | 5,159
Adjustment to fair value of warrants issued for purchase of another company | 0 | 0 | (325) | 0 | 0 | 0 | (325)
Common stock issued for prepayment of debt | 0 | 2,664 | 30,793 | 0 | 0 | 0 | 33,457
Balances | 39 | 121,956 | 1,880,481 | (248,308) | (42,469) | (20,736) | 1,690,963
Balances | 39 | 132,292 | 1,973,700 | (353,331) | (37,310) | (22,967) | 1,692,423
Balance at Dec. 31, 2019 | 39 | 132,292 | 1,973,700 | (353,331) | (37,310) | (22,967) | 1,692,423
Net income (loss) | 0 | 0 | 0 | (16,790) | 0 | 0 | (16,790)
Stock issued to directors | 0 | 97 | 1,389 | 0 | 0 | 0 | 1,486
Series B Preferred Stock dividends declared | 0 | 0 | 0 | (552) | 0 | 0 | (552)
Stock issued for 401(k) match | 0 | 397 | 4,227 | 0 | 0 | 0 | 4,624
Restricted stock units granted | 0 | 0 | 4,975 | 0 | 0 | 0 | 4,975
Common stock dividends declared | 0 | 0 | 0 | (8,600) | 0 | 0 | (8,600)
Common stock issued for employee incentive compensation | 0 | 700 | 4,396 | 0 | 0 | (1,266) | 3,830
Common stock issued to pension plans | 0 | 717 | 15,315 | 0 | 0 | 0 | 16,032
Restricted stock unit distributions | 0 | 426 | (426) | 0 | 0 | (1,479) | (1,479)
Other comprehensive income (loss) | 0 | 0 | 0 | 0 | 4,421 | 0 | 4,421
Balances | 39 | 132,292 | 1,973,700 | (353,331) | (37,310) | (22,967) | 1,692,423
Treasury shares issued to charitable foundation | 0 | 0 | 0 | (246) | 0 | 2,216 | 1,970
Balances | $ 39 | $ 134,629 | $ 2,003,576 | $ (379,519) | $ (32,889) | $ (23,496) | $ 1,702,340

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