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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Common Stock
Capital in Excess of Par Value
Retained Earnings
Accumulated Other Comprehensive Income (Loss)
Total
Balance at Dec. 31, 2012 $ 3,782 $ 2,417 $ 73,120 $ (1,572) $ 77,747
Balance (in shares) at Dec. 31, 2012 37,821,000        
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock issued for stock incentive plans, net $ 37 1,597     1,634
Stock issued for stock incentive plans, net (in shares) 364,000        
Stock purchased and retired $ (9) (567)     (576)
Stock purchased and retired (in shares) (90,000)        
Net income     7,528   7,528
Pension adjustment, net of taxes       781 781
Unrealized loss on securities, net of taxes and reclassification adjustments       (62) (62)
Excess tax benefits for share-based payments   136     136
Dividends declared     (5,705)   (5,705)
Balance at Dec. 31, 2013 $ 3,810 3,583 74,943 (853) 81,483
Balance (in shares) at Dec. 31, 2013 38,095,000        
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock issued for stock incentive plans, net $ 25 1,729     1,754
Stock issued for stock incentive plans, net (in shares) 260,000        
Stock purchased and retired $ (22) (1,759)     (1,781)
Stock purchased and retired (in shares) (224,000)        
Net income     8,914   8,914
Pension adjustment, net of taxes       (1,034) (1,034)
Unrealized loss on securities, net of taxes and reclassification adjustments       (82) (82)
Excess tax benefits for share-based payments   342     342
Dividends declared     (6,102)   (6,102)
Balance at Dec. 31, 2014 $ 3,813 3,895 77,755 (1,969) $ 83,494
Balance (in shares) at Dec. 31, 2014 38,131,000       38,130,862
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Stock issued for stock incentive plans, net $ 32 1,953     $ 1,985
Stock issued for stock incentive plans, net (in shares) 317,000        
Stock purchased and retired $ (34) (2,225)     (2,259)
Stock purchased and retired (in shares) (336,000)        
Net income     14,306   14,306
Pension adjustment, net of taxes       125 125
Unrealized loss on securities, net of taxes and reclassification adjustments       (57) (57)
Excess tax benefits for share-based payments   256     256
Dividends declared     (7,638)   (7,638)
Balance at Dec. 31, 2015 $ 3,811 $ 3,879 $ 84,423 $ (1,901) $ 90,212
Balance (in shares) at Dec. 31, 2015 38,112,000       38,111,625