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Consolidated Statements of Equity - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
AOCI Attributable to Parent [Member]
Total
Balances (in shares) at Dec. 31, 2012 26,245,543        
Balances at Dec. 31, 2012 $ 5,130 $ 2,693 $ 243,178 $ (16,282) $ 234,719
Net income $ 30,104 30,104
Other comprehensive income $ 7,821 7,821
Issuance of treasury shares (in shares) 7,500        
Issuance of treasury shares $ 1 $ 129 $ 28 158
Cash dividends - $0.330 a share (8,662) (8,662)
Balances (in shares) at Dec. 31, 2013 26,253,043        
Balances at Dec. 31, 2013 $ 5,131 $ 2,822 264,648 $ (8,461) 264,140
Issuance of treasury shares (in shares) 7,500        
Net income $ 36,141 36,141
Other comprehensive income $ (8,865) (8,865)
Issuance of treasury shares (in shares) 7,500        
Issuance of treasury shares $ 2 $ 237 $ 27 266
Cash dividends - $0.330 a share (9,715) (9,715)
Balances (in shares) at Dec. 31, 2014 26,260,543        
Balances at Dec. 31, 2014 $ 5,133 $ 3,059 291,101 $ (17,326) 281,967
Issuance of treasury shares (in shares) 7,500        
Net income $ 25,109 25,109
Other comprehensive income $ (5,089) (5,089)
Issuance of treasury shares (in shares) 7,500        
Issuance of treasury shares $ 2 $ 184 $ 26 212
Cash dividends - $0.330 a share (10,599) (10,599)
Balances (in shares) at Dec. 31, 2015 26,083,623        
Balances at Dec. 31, 2015 $ 5,095 304,341 $ (22,415) 287,021
Issuance of treasury shares (in shares) 7,500        
Treasury shares repurchased (in shares) (184,420)        
Treasury shares repurchased $ (40) $ (3,243) $ (1,296) $ (4,579)