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Equity and Noncontrolling Interest
 6 Months Ended
Jun. 30, 2012
Stockholders Equity [Abstract]  
Stockholders Equity Note Disclosure [Text Block]

Note 9 – Equity and Noncontrolling Interest

The following table presents the changes in equity and noncontrolling interest for the three and six months ended June 30, 2012 and June 30, 2011:

            Accumulated      
      Capital in    Other      
   Common Excess of Retained Comprehensive Noncontrolling   
   Stock Par Value Earnings Loss Interest Total
Balance at March 31, 2012$12,951 $90,836 $184,764 $(25,902) $8,015 $270,664
 Net income 0  0  10,540  0  630  11,170
 Currency translation adjustments 0  0  0  (6,786)  (425)  (7,211)
 Defined benefit retirement plans 0  0  0  499  0  499
 Current period changes in fair value of derivatives 0  0  0  103  0  103
 Unrealized gain on available-for-sale securities 0  0  0  (5)  0  (5)
 Dividends ($0.245 per share) 0  0  (3,188)  0  0  (3,188)
 Dvidends paid to noncontrolling shareholders 0  0  0  0  (30)  (30)
 Share issuance and equity-based compensation plans 60  1,195  0  0  0  1,255
 Excess tax benefit from stock option exercises 0  168  0  0  0  168
Balance at June 30, 2012$13,011 $92,199 $192,116 $(32,091) $8,190 $273,425
                    
Balance at March 31, 2011$11,531 $39,132 $152,237 $(9,497) $7,359 $200,762
 Net income 0  0  9,841  0  714  10,555
 Currency translation adjustments 0  0  0  3,587  69  3,656
 Defined benefit retirement plans 0  0  0  325  0  325
 Current period changes in fair value of derivatives 0  0  0  78  0  78
 Dividends ($0.24 per share) 0  0  (3,080)  0  0  (3,080)
 Stock offering, net of related expenses 1,265  46,878  0  0  0  48,143
 Share issuance and equity-based compensation plans 27  1,155  0  0  0  1,182
 Excess tax benefit from stock option exercises 0  84  0  0  0  84
Balance at June 30, 2011$12,823 $87,249 $158,998 $(5,507) $8,142 $261,705

            Accumulated      
      Capital in    Other      
   Common Excess of Retained Comprehensive Noncontrolling   
   Stock Par Value Earnings Loss Interest Total
Balance at December 31, 2011$12,912 $89,725 $175,932 $(29,820) $6,977 $255,726
 Net income 0  0  22,486  0  1,377  23,863
 Currency translation adjustments 0  0  0  (3,442)  (134)  (3,576)
 Defined benefit retirement plans 0  0  0  969  0  969
 Current period changes in fair value of derivatives 0  0  0  199  0  199
 Unrealized gain on available-for-sale securities 0  0  0  3  0  3
 Dividends ($0.485 per share) 0  0  (6,302)  0  0  (6,302)
 Dividends paid to noncontrolling interests 0  0  0  0  (30)  (30)
 Share issuance and equity-based compensation plans 99  1,054  0  0  0  1,153
 Excess tax benefit from stock option exercises 0  1,420  0  0  0  1,420
Balance at June 30, 2012$13,011 $92,199 $192,116 $(32,091) $8,190 $273,425
                    
Balance at December 31, 2010$11,492 $38,275 $144,347 $(13,736) $6,721 $187,099
 Net income 0  0  20,441  0  1,344  21,785
 Currency translation adjustments 0  0  0  7,400  77  7,477
 Defined benefit retirement plans 0  0  0  649  0  649
 Current period changes in fair value of derivatives 0  0  0  174  0  174
 Unrealized loss on available-for-sale securities 0  0  0  6  0  6
 Dividends ($0.475 per share) 0  0  (5,790)  0  0  (5,790)
 Stock offering, net of related expenses 1,265  46,878  0  0  0  48,143
 Share issuance and equity-based compensation plans 66  1,934  0  0  0  2,000
 Excess tax benefit from stock option exercises 0  162  0  0  0  162
Balance at June 30, 2011$12,823 $87,249 $158,998 $(5,507) $8,142 $261,705

The items in Accumulated Other Comprehensive Loss are net of tax benefits of $247 and $168 for defined benefit retirement plans and $55 and $42 for current period changes in fair value for derivatives for the three months ended June 30, 2012 and June 30, 2011, respectively. The items in Accumulated Other Comprehensive Loss are net of tax benefits of $527 and $335 for defined benefit retirement plans and $107 and $93 for current period changes in fair value for derivatives for the six months ended June 30, 2012 and June 30, 2011, respectively.

The Company sold 1,265,000 shares of its common stock during the second quarter of 2011. The Company received proceeds of $48,143, net of related offering expenses, commissions and underwriting fees. The Company used the proceeds to repay a portion of its revolving credit line during the second quarter of 2011.