Equity Method Investments and Joint Ventures (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Equity Method Investment, Financial Statement, Reported Amounts [Abstract]
Equity loss on investments	$ (233)	$ (55)
Payments to Acquire Equity Method Investments	0	250
Equity Method Investment, Other than Temporary Impairment	126
IntelliQlik, LLC [Member]
Equity Method Investment, Financial Statement, Reported Amounts [Abstract]
Equity loss on investments	(233)	(17)
Equity Method Investments	$ 0	440
Equity Method Investment, Ownership Percentage	50.00%
Equity Method Investment, Description of Principal Activities	IntelliQlik is developing a software platform for online learning and learning management for the energy market
Payments to Acquire Equity Method Investments	$ 250
Obligation to contribute additional investment	250
Business Combination, Contingent Consideration, Liability	0
General Simulation Engineering RUS LLC [Member]
Equity Method Investment, Financial Statement, Reported Amounts [Abstract]
Equity loss on investments	0	(38)
Equity Method Investments	$ 0	$ 0
Equity Method Investment, Ownership Percentage	50.00%

Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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-Name Accounting Standards Codification
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-SubTopic 30
-Section 25
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Amount of liability recognized arising from contingent consideration in a business combination.

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A description of the principal activities of an investee accounted for under the equity method.

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This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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