v2.4.0.6
Equity (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Stockholders Equity Note [Line Items]    
Beginning Balance $ 196,992  
Net earnings 3,250 3,125
Foreign currency translation adjustments 84 (476)
Pension liability adjustment, net of tax 120 233
Ending Balance 198,923  
Common Stock [Member]
   
Stockholders Equity Note [Line Items]    
Beginning Balance 10,876  
Net earnings 0  
Foreign currency translation adjustments 0  
Pension liability adjustment, net of tax 0  
Cash dividends declared 0  
Stock options exercised 8  
Stock-based compensation expense 0  
Income tax benefit from stock options exercised 0  
Shares purchased and retired (3)  
Ending Balance 10,881  
Capital in Excess of Par Value [Member]
   
Stockholders Equity Note [Line Items]    
Beginning Balance 31,729  
Net earnings 0  
Foreign currency translation adjustments 0  
Pension liability adjustment, net of tax 0  
Cash dividends declared 0  
Stock options exercised 157  
Stock-based compensation expense 338  
Income tax benefit from stock options exercised 14  
Shares purchased and retired 0  
Ending Balance 32,238  
Reinvested Earnings [Member]
   
Stockholders Equity Note [Line Items]    
Beginning Balance 156,983  
Net earnings 3,205  
Foreign currency translation adjustments 0  
Pension liability adjustment, net of tax 0  
Cash dividends declared (1,959)  
Stock options exercised 0  
Stock-based compensation expense 0  
Income tax benefit from stock options exercised 0  
Shares purchased and retired (78)  
Ending Balance 158,151  
Accumulated Other Comprehensive Income (Loss) [Member]
   
Stockholders Equity Note [Line Items]    
Beginning Balance (9,422)  
Net earnings 0  
Foreign currency translation adjustments (78)  
Pension liability adjustment, net of tax 120  
Stock options exercised 0  
Stock-based compensation expense 0  
Income tax benefit from stock options exercised 0  
Shares purchased and retired 0  
Ending Balance (9,380)  
Noncontrolling Interest [Member]
   
Stockholders Equity Note [Line Items]    
Beginning Balance 6,826  
Net earnings 45  
Foreign currency translation adjustments 162  
Pension liability adjustment, net of tax 0  
Stock options exercised 0  
Stock-based compensation expense 0  
Income tax benefit from stock options exercised 0  
Shares purchased and retired 0  
Ending Balance $ 7,033