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Accounts Receivable and Contracts in Progress (Tables) | 12 Months Ended
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Dec. 31, 2014
Accounts Receivable [Abstract] |
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] | Accounts receivable at December 31, 2014 and 2013, consists of the following:
| December 31,
| 2014 |  | 2013
Accounts receivable | $ | 64,004 |  |  | $ | 40,842 |
Unbilled receivables | 7,959 |  |  | 6,784 |
Total receivables | 71,963 |  |  | 47,626 |
Less: Allowance for doubtful accounts | (868 | ) |  | (1,060 | )
Accounts receivable, net | $ | 71,095 |  |  | $ | 46,566 |
Schedule Of Contracts In Progress [Table Text Block] | Activity related to contracts in progress at December 31, 2014 and 2013, is summarized as follows:
| December 31,
| 2014 |  | 2013
Costs and estimated earnings recognized to date | $ | 349,874 |  |  | $ | 221,905 |
Progress billings to date | (400,349 | ) |  | (260,372 | )
Total | $ | (50,475 | ) |  | $ | (38,467 | )
Schedule Of Unbilled Receivables And Deferred Revenue [Table Text Block] | These amounts are included in the accompanying Consolidated Balance Sheets at December 31, 2014 and 2013, as follows:
| December 31,
| 2014 |  | 2013
Unbilled receivables | $ | 7,959 |  |  | $ | 6,784 |
Deferred revenue | (58,434 | ) |  | (45,251 | )
Total | $ | (50,475 | ) |  | $ | (38,467 | )

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3, 4 -Article 5 + Details
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