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Long-Term Debt (Tables) | 12 Months Ended
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Dec. 31, 2015
Line of Credit, Long-Term Debt [Abstract] |
Schedule of Maturities of Long-term Debt [Table Text Block] | Long term debt consisted of the following at December 31 (in thousands):
|  | December 31, 2015 |  | December 31, 2014
Long-term debt |  | $ | — |  |  | $ | 24,600 |

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- Definition Line of Credit, Long-Term Debt [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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