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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2017
Accounting Policies [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
The components of accumulated other comprehensive loss as recorded on the accompanying Consolidated Balance Sheets were as follows:
 
 
 
 
2017
 
2016
  
 
(Dollars in thousands)
Foreign currency translation adjustments
 
$
(4,186
) 
 
$
(5,489
) 
Pension liability, net of tax
 
 
(13,673
) 
 
 
(11,080
) 
Total accumulated other comprehensive loss
 
$
(17,859
) 
 
$
(16,569
) 
Changes In Accumulated Other Comprehensive Loss [Table Text Block]
The following presents a tabular disclosure about changes in accumulated other comprehensive loss (dollars in thousands):
 
 
 
 
 
Foreign
Currency
Translation
Adjustments
 
Defined
Benefit
Pension
Items
 
Total
Balance, December 31, 2015
 
$
(5,691
) 
 
$
(12,776
) 
 
$
(18,467
) 
Other comprehensive income before reclassifications
 
 
202
 
 
 
765
 
 
 
967
 
Amounts reclassified from accumulated other comprehensive loss
 
 
—
 
 
 
931
 
 
 
931
 
Net current period other comprehensive income
 
 
202
 
 
 
1,696
 
 
 
1,898
 
Balance, December 31, 2016
 
$
(5,489
) 
 
$
(11,080
) 
 
$
(16,569
) 
Other comprehensive loss before reclassifications
 
 
1,303
 
 
 
(2,982
) 
 
 
(1,679
) 
Amounts reclassified from accumulated other comprehensive loss
 
 
—
 
 
 
389
 
 
 
389
 
Net current period other comprehensive income (loss)
 
 
1,303
 
 
 
(2,593
) 
 
 
(1,290
) 
Balance, December 31, 2017
 
$
(4,186
) 
 
$
(13,673
) 
 
$
(17,859
)
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
The following presents a tabular disclosure about reclassification adjustments out of accumulated other comprehensive loss during the years ended December 31, 2017 and 2016 (dollars in thousands): 
 
 
 
 
 
Amounts reclassified from accumulated other comprehensive loss for the year ended December 31,
 
Affected line item in the statement where net income is presented
  
 
2017
 
2016
Amortization of defined benefit pension items
 
 
  
 
 
 
  
 
 
 
  
 
Prior service cost
 
$
(63
) 
 
$
(262
)(1) 
 
 
Other Expense, net
 
Actuarial losses
 
 
589
 
 
 
1,789
(1) 
 
 
Other Expense, net
 
Total before tax
 
 
526
 
 
 
1,527
 
 
 
  
 
Tax benefit
 
 
(137
) 
 
 
(596
) 
 
 
 
Net of tax
 
$
389
 
 
$
931
 
 
 
 
  
   
(1)
These amounts were included in the computation of net pension expense. See Note 11 for additional details.