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INCOME TAXES (Tables)
12 Months Ended
Dec. 31, 2012
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

The provision for income taxes included the following components at December 31, 2012, 2011 and 2010:

 

    2012     2011     2010  
    (Dollars in thousands)  
Current:                        
Federal   $ 6,985     $ 5,483     $ 5,228  
State     928       951       1,020  
Foreign     972       2,490       420  
Total     8,885       8,924       6,668  
Deferred     1,648       (343 )     503  
Total provision   $ 10,533     $ 8,581     $ 7,171  
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

The differences between the U.S. federal statutory income tax rate and the Company’s effective tax rate were as follows for the years ended December 31, 2012, 2011 and 2010:

 

    2012     2011     2010  
U.S. federal statutory income tax rate     35.0 %     35.0 %     35.0 %
State income taxes, net of federal tax benefit     2.3       2.5       3.1  
Non-taxable municipal bond interest     (1.9 )     (2.7 )     (3.2 )
Foreign income tax rate differences     (2.2 )     (1.5 )     (0.6 )
Other     0.9       1.0       (0.6 )
Effective tax rate     34.1 %     34.3 %     33.7 %
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

The components of deferred taxes as of December 31, 2012 and 2011 were as follows:

  

    2012     2011  
    (Dollars in thousands)  
Deferred tax benefits:                
Accounts receivable reserves   $ 421     $ 507  
Pension liability     10,882       10,428  
Accrued liabilities     1,934       1,727  
      13,237       12,662  
Deferred tax liabilities:                
Inventory and related reserves     (1,316 )     (964 )
Cash value of life insurance     (3,029 )     (2,821 )
Property, plant and equipment     (1,713 )     (1,516 )
Intangible assets     (5,051 )     (2,827 )
Prepaid and other assets     (268 )     (263 )
Foreign currency gains on intercompany loans     (419 )     (448 )
      (11,796 )     (8,839 )
Net deferred income tax benefits   $ 1,441     $ 3,823
Schedule of Deferred Tax Benefit [Table Text Block]

The net deferred tax benefit is classified in the Consolidated Balance Sheets as follows:

 

    2012     2011  
    (Dollars in thousands)  
Current deferred income tax benefits   $ 649     $ 395  
Noncurrent deferred income tax benefits     792       3,428  
    $ 1,441     $ 3,823  
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

The following table summarizes the activity related to the Company’s unrecognized tax benefits:

 

(Dollars in thousands)      
Balance at December 31, 2009   $ 449  
Increases related to current year tax positions     9  
Expiration of the statute of limitations for the assessment of taxes     (23 )
Favorable settlements of tax positions     (351 )
Balance at December 31, 2010   $ 84  
Expiration of the statute of limitations for the assessment of taxes     (84 )
Balance at December 31, 2011   $ -  
Increases related to current year tax positions     124  
Balance at December 31, 2012   $ 124