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Fair Value Measurements (Details 1) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
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Sep. 30, 2013 | Sep. 30, 2013
Summary of the change in the balance of the Company's asset measured at fair value on a recurring basis using significant unobservable inputs (Level 3) |  |
Balance, beginning of period, Assets | $ 299 |
Total gains (losses) (realized or unrealized) included in earnings in ''Direct cost of revenues'', Assets | 335 | 275
Purchases, sales, issuances and settlements: Assets |  |
Purchases, Assets |  | 359
Transfers in (out) of Level 3, Assets |  |
Balance, end of period, Assets | 634 | 634
The amount of total gains or losses for the period included in earnings in ''Direct cost of revenues'' attributable to the change in unrealized gains or losses relating to asset and liabilities held at the end of the period, Assets | 354 | 325
Summary of the change in the balance of the Company's liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) |  |
Balance, beginning of period, Liabilities | (20) |
Total gains (losses) (realized or unrealized) included in earnings in ''Direct cost of revenues'', Liabilities | (555) | (575)
Purchases, sales, issuances and settlements: Liabilities |  |
Purchases, Liabilities |  |
Transfers in (out) of Level 3, Liabilities |  |
Balance, end of period, Liabilities | (575) | (575)
The amount of total gains or losses for the period included in earnings in "Direct cost of revenues" attributable to the change in unrealized gains or losses relating to assets and liabilities held at the end of the period | $ (575) | $ (575)

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- Definition This item represents the amount of the total change in unrealized (holding) gains or losses for the period which are included in the statement of income (or changes in net assets) earnings in Direct cost of revenues. Such unrealized (holding) gains or losses relate to those liabilities still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3). + References No definition available. + Details
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- Definition This item represents the amount of the total realized and unrealized gains or losses for the period which are included in the statement of income (or changes in net assets) in earnings in direct cost of revenues the fair value of which liabilities was or is measured on a recurring basis using significant unobservable inputs (Level 3). + References No definition available. + Details
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- Definition Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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