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Fair Value Measurements (Fair Value Measurements On A Recurring Basis) (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
--- | --- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash and cash equivalents, Carrying amount | $ 569 | $ 1,190 | $ 1,505
Treasury Bills, fair value | 7,872 | 6,542 |
Available-for-sale Securities, Fair Value | 7,872 | 7,798 |
Obligations [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Contingent Earn-out, Fair Value | 455 | 472 |
Contingent Earn-out, Carrying Value | 455 | 472 |
Fair Value, Inputs, Level 1 [Member] | Obligations [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Contingent Earn-out, Fair Value | 0 | 0 |
Fair Value, Inputs, Level 2 [Member] | Obligations [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Contingent Earn-out, Fair Value | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Obligations [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Contingent Earn-out, Fair Value | 455 | 472 |
Small Cap Technology Sector [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-sale Securities, Carrying amount |  | 1,256 |
Available-for-sale Securities, Fair Value |  | 1,256 |
Small Cap Technology Sector [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-sale Securities, Fair Value |  | 1,256 |
Small Cap Technology Sector [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-sale Securities, Fair Value |  | 0 |
Small Cap Technology Sector [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-sale Securities, Fair Value |  | 0 |
Money Market [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash and cash equivalents, Carrying amount | 246 | 510 |
Cash and cash equivalents, Fair Value | 246 | 510 |
Money Market [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash and cash equivalents, Fair Value | 246 | 510 |
Money Market [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash and cash equivalents, Fair Value | 0 | 0 |
Money Market [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash and cash equivalents, Fair Value | 0 | 0 |
Commercial Paper [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash and cash equivalents, Carrying amount | 247 | 345 |
Cash and cash equivalents, Fair Value | 247 | 345 |
Commercial Paper [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash and cash equivalents, Fair Value | 247 | 345 |
Commercial Paper [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash and cash equivalents, Fair Value | 0 | 0 |
Commercial Paper [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash and cash equivalents, Fair Value | 0 | 0 |
Treasury Bills [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Treasury Bills, carrying value | 7,872 | 6,542 |
Treasury Bills, fair value | 7,872 | 6,542 |
Treasury Bills [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Treasury Bills, fair value | 7,872 | 6,542 |
Treasury Bills [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Treasury Bills, fair value | 0 | 0 |
Treasury Bills [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Treasury Bills, fair value | $ 0 | $ 0 |

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