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CONSOLIDATED STATEMENTS OF EQUITY (USD $)
In Thousands
Common Stock [Member]
Capital in Excess of Par Value [Member]
Reinvested Earnings [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Noncontrolling Interest [Member]
Total
Beginning Balance at Dec. 31, 2009 $ 11,333 $ 16,788 $ 146,241 $ (10,066) $ 4,047  
Net earnings 0 0 13,668 0 458 14,126
Foreign currency translation adjustments 0 0 0 122 193 315
Pension liability adjustment net of tax 0 0 0 940 0 (940)
Cash dividends declared 0 0 (7,144) 0 0  
Stock options exercised 114 1,088 0 0 0  
Issuance of restricted stock 13 (13) 0 0 0  
Restricted stock forfeited (2) 2 0 0 0  
Stock-based compensation expense 0 1,128 0 0 0  
Income tax benefit from stock options exercised and vesting of restricted stock 0 555 0 0 0  
Shares purchased and retired (102) 0 (2,219) 0 0 0
Ending Balance at Dec. 31, 2010 11,356 19,548 150,546 (9,004) 4,698  
Net earnings 0 0 15,251 0 1,190 16,441
Foreign currency translation adjustments 0 0 0 (320) (489) (809)
Pension liability adjustment net of tax 0 0 0 (4,095) 0 4,095
Cash dividends declared 0 0 (7,086) 0 0  
Stock options exercised 123 973 0 0 0  
Issuance of restricted stock 19 (19) 0 0 0  
Stock-based compensation expense 0 1,224 0 0 0  
Income tax benefit from stock options exercised and vesting of restricted stock 0 496 0 0 0  
Shares purchased and retired (576) 0 (12,445) 0 0 0
Ending Balance at Dec. 31, 2011 10,922 22,222 146,266 (13,419) 5,399 171,390
Net earnings 0 0 18,957 0 1,442 20,399
Foreign currency translation adjustments 0 0 0 (102) 323 221
Pension liability adjustment net of tax 0 0 0 1,147 0 (1,147)
Cash dividends declared 0 0 (9,133) 0 0  
Cash dividends paid to noncontrolling interest of subsidiary 0 0 0 0 (233)  
Increase in ownership interest of noncontrolling interest of subsidiary 0 0 (153) (140) 293  
Stock options exercised 174 2,126 0 0 0  
Issuance of restricted stock 20 (20) 0 0 0  
Stock-based compensation expense 0 1,201 0 0 0  
Income tax benefit from stock options exercised and vesting of restricted stock 0 655 0 0 0  
Shares purchased and retired (285) 0 (6,273) 0 0 0
Ending Balance at Dec. 31, 2012 $ 10,831 $ 26,184 $ 149,664 $ (12,514) $ 7,224 $ 181,389