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Segment Reporting and Geographic Information - Revenues, Accounts Receivable and Unbilled Revenue from Major Customers (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Customer A [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance |  | $ 1,828 |  | $ 2,701 |
Major Customer balance percentage |  | 21.00% |  | 14.00% |
Customer A [Member] | Accounts Receivable [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance | [1],[2] |  |  |  |
Major Customer balance percentage | [1],[2] |  |  |  |
Customer A [Member] | Unbilled Revenues [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance | [1],[2] |  |  |  |
Major Customer balance percentage | [1],[2] |  |  |  |
Customer B [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance |  |  | [1] | $ 2,735 |
Major Customer balance percentage |  |  | [1] | 14.00% |
Customer B [Member] | Accounts Receivable [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance | [2] |  | [1] | $ 1,844 |
Major Customer balance percentage | [2] |  | [1] | 28.00% |
Customer B [Member] | Unbilled Revenues [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance | [2] |  |  | $ 1,507 |
Major Customer balance percentage | [2] |  |  | 39.00% |
Customer C [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance |  |  | [1] | $ 2,889 |
Major Customer balance percentage |  |  | [1] | 15.00% |
Customer C [Member] | Accounts Receivable [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance | [2] |  | [1] | $ 1,049 |
Major Customer balance percentage | [2] |  | [1] | 16.00% |
Customer C [Member] | Unbilled Revenues [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance | [2] |  |  | $ 1,087 |
Major Customer balance percentage | [2] |  |  | 28.00% |
Customer D [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance |  | $ 1,295 |  | $ 2,200 |
Major Customer balance percentage |  | 15.00% |  | 12.00% |
Customer D [Member] | Accounts Receivable [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance | [2] |  | [1] | $ 834 |
Major Customer balance percentage | [2] |  | [1] | 12.00% |
Customer D [Member] | Unbilled Revenues [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance | [1],[2] |  |  |  |
Major Customer balance percentage | [1],[2] |  |  |  |
Customer E [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance | [1] |  |  |  |
Major Customer balance percentage | [1] |  |  |  |
Customer E [Member] | Accounts Receivable [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance | [2] |  | [1] | $ 1,112 |
Major Customer balance percentage | [2] |  | [1] | 17.00% |
Customer E [Member] | Unbilled Revenues [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance | [1],[2] |  |  |  |
Major Customer balance percentage | [1],[2] |  |  |  |
Customer F [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance | [1] |  |  |  |
Major Customer balance percentage | [1] |  |  |  |
Customer F [Member] | Accounts Receivable [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance | [1],[2] |  |  |  |
Major Customer balance percentage | [1],[2] |  |  |  |
Customer F [Member] | Unbilled Revenues [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance | [2] |  |  | $ 408 |
Major Customer balance percentage | [2] |  |  | 11.00% |
Customer G [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance |  |  | [3] |  | [1]
Major Customer balance percentage |  |  | [3] |  | [1]
Customer G [Member] | Accounts Receivable [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance | [2] | $ 283 |  |  | [1]
Major Customer balance percentage | [2] | 28.00% |  |  | [1]
Customer G [Member] | Unbilled Revenues [Member] |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |
Major Customer balance | [1],[2] |  |  |  |
Major Customer balance percentage | [1],[2] |  |  |  |
[1] | Balance is not significant
[2] | Following the closing of the DSIT Transaction (see Note 3), the Company no longer consolidates the assets, liabilities or results of DSIT, but rather reports its investment in DSIT using the equity method. Accordingly, the Company no longer reports DSIT's Accounts Receivable or Unbilled Revenue balances.
[3] | Includes $239 and $582 of stock compensation expense for the years ended December 31, 2016 and 2015, respectively. Also includes $446 and $225 of interest expense associated with the LT Loan for the years ended December 31, 2016 and 2015, respectively (see Note 5).

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- Definition Major Customer balance. + References No definition available. + Details
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- Definition Major Customer balance percentage. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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