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Accumulated Other Comprehensive Income (Tables) | 12 Months Ended
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Dec. 31, 2016
Accumulated Other Comprehensive Income [Abstract] |
Schedule Of Accumulated Other Comprehensive Income |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿(Dollars in thousands) |  | Foreign Currency Items |  | Unrealized Gain (Losses) on Available-for-Sale Investments |  | Accrued Pension Service Costs |  | Total
﻿Balance at January 1, 2016 |  | $ | 14,642 |  | $ | 12 |  | $ | (2,848) |  | $ | 11,806
﻿Net current-period other comprehensive income |  |  | 142 |  |  | (2) |  |  | 129 |  |  | 269
﻿Balance at December 31, 2016 |  | $ | 14,784 |  | $ | 10 |  | $ | (2,719) |  | $ | 12,075
﻿

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580 + Details
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