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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2016
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:
|  | 2016 |  | 2015
|  | (Dollars in thousands)
Foreign currency translation adjustments |  | $ | (5,489) |  |  | $ | (5,691 | )
Pension liability, net of tax |  |  | (11,080 | ) |  |  | (12,776 | )
Total accumulated other comprehensive loss |  | $ | (16,569) |  |  | $ | (18,467 | )
Changes In Accumulated Other Comprehensive Loss [Table Text Block] | The following presents a tabular disclosure about changes in accumulated other comprehensive loss during the year ended December 31, 2016 (dollars in thousands):
|  | Foreign Currency Translation Adjustments |  | Defined Benefit Pension Items |  | Total
Balance, December 31, 2014 |  | $ | (2,894 | ) |  | $ | (15,136 | ) |  | $ | (18,030 | )
Other comprehensive (loss) income before reclassifications |  |  | (2,797 | ) |  |  | 1,285 |  |  |  | (1,512 | )
Amounts reclassified from accumulated other comprehensive loss |  |  | — |  |  |  | 1,075 |  |  |  | 1,075 |
Net current period other comprehensive (loss) income |  |  | (2,797 | ) |  |  | 2,360 |  |  |  | (437 | )
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 | )
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, 2016 and 2015 (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
|  | 2016 |  | 2015
Amortization of defined benefit pension items |  |  |  |  |  |  |  |  |  |  |  |
Prior service cost |  | $ | (262) |  |  | $ | (112 | ) |  |  | (1) |
Actuarial losses |  |  | 1,789 |  |  |  | 1,874 |  |  |  | (1) |
Total before tax |  |  | 1,527 |  |  |  | 1,762 |  |  |  |  |
Tax benefit |  |  | (596 | ) |  |  | (687 | ) |  |  |  |
Net of tax |  | $ | 931 |  |  | $ | 1,075 |  |  |  |  |
| (1) | These amounts were included in the computation of net periodic pension cost. See Note 11 for additional details.

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