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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
Common Stock Outstanding [Member]
Additional Paid-in Capital [Member]
AOCI Attributable to Parent [Member]
Treasury Stock [Member]
Retained Earnings [Member]
Total
Balance (in shares) at Dec. 31, 2017 6,161          
Balance at Dec. 31, 2017 $ 115 $ 81,559 $ 7,444 $ (129,183) $ 167,669 $ 127,604
Net Income 1,387 1,387
Stock awards-shares issued including tax benefits (in shares) 17          
Stock awards-shares issued including tax benefits 168 168
Treasury stock repurchases (in shares) (1)          
Treasury stock repurchases (36) (36)
Stock based compensation [1] 162 162
Balance (in shares) at Mar. 31, 2018 6,177          
Balance at Mar. 31, 2018 $ 115 81,889 (129,219) 176,500 129,285
Balance (in shares) at Dec. 31, 2017 6,161          
Balance at Dec. 31, 2017 $ 115 81,559 7,444 (129,183) 167,669 127,604
Net Income           17,924
Balance (in shares) at Sep. 30, 2018 6,012          
Balance at Sep. 30, 2018 $ 116 82,601 (139,434) 193,037 136,320
Cumulative effect adjustment – ASU 2016-01 (7,444) 7,444
Balance (in shares) at Mar. 31, 2018 6,177          
Balance at Mar. 31, 2018 $ 115 81,889 (129,219) 176,500 129,285
Net Income 7,289 7,289
Stock awards-shares issued including tax benefits (in shares) 63          
Stock awards-shares issued including tax benefits $ 1 299 300
Treasury stock repurchases (in shares) (186)          
Treasury stock repurchases (7,495) (7,495)
Stock based compensation [1] 233 233
Balance (in shares) at Jun. 30, 2018 6,054          
Balance at Jun. 30, 2018 $ 116 82,421 (136,714) 183,789 129,612
Net Income 9,248 9,248
Stock awards-shares issued including tax benefits (in shares) 1          
Stock awards-shares issued including tax benefits 18 18
Treasury stock repurchases (in shares) (43)          
Treasury stock repurchases (2,720) (2,720)
Stock based compensation 162 162
Balance (in shares) at Sep. 30, 2018 6,012          
Balance at Sep. 30, 2018 $ 116 82,601 (139,434) 193,037 136,320
Balance (in shares) at Dec. 31, 2018 5,957          
Balance at Dec. 31, 2018 $ 116 82,776   (142,552) 199,107 139,447
Net Income   8,301 8,301
Stock awards-shares issued including tax benefits (in shares) 1          
Stock awards-shares issued including tax benefits  
Treasury stock repurchases (in shares) (40)          
Treasury stock repurchases   (1,618) (1,618)
Stock based compensation [2] 216   216
Balance (in shares) at Mar. 31, 2019 5,918          
Balance at Mar. 31, 2019 $ 116 82,992   (144,170) 207,408 146,346
Balance (in shares) at Dec. 31, 2018 5,957          
Balance at Dec. 31, 2018 $ 116 82,776   (142,552) 199,107 139,447
Net Income           21,536
Balance (in shares) at Sep. 30, 2019 5,754          
Balance at Sep. 30, 2019 $ 116 83,512   (156,167) 220,643 148,104
Balance (in shares) at Mar. 31, 2019 5,918          
Balance at Mar. 31, 2019 $ 116 82,992   (144,170) 207,408 146,346
Net Income   8,654 8,654
Stock awards-shares issued including tax benefits (in shares) 35          
Stock awards-shares issued including tax benefits  
Treasury stock repurchases (in shares) (196)          
Treasury stock repurchases   (11,823) (11,823)
Stock based compensation [2] 310   310
Balance (in shares) at Jun. 30, 2019 5,757          
Balance at Jun. 30, 2019 $ 116 83,302   (155,993) 216,062 143,487
Net Income   4,581 4,581
Stock awards-shares issued including tax benefits (in shares)          
Stock awards-shares issued including tax benefits  
Treasury stock repurchases (in shares) (3)          
Treasury stock repurchases   (174) (174)
Stock based compensation 210   210
Balance (in shares) at Sep. 30, 2019 5,754          
Balance at Sep. 30, 2019 $ 116 $ 83,512   $ (156,167) $ 220,643 $ 148,104
[1] Approximately $70,000 was accrued as stock-based compensation at March 31, 2018 for restricted stock earned by non-employee directors but for which shares were not issued until April 2018.
[2] Approximately $90,000 was accrued as Share-based compensation at March 31, 2019 for restricted stock earned by non-employee directors but for which shares were not issued until April 2019.