FAIR VALUE MEASUREMENTS AND INVESTMENTS (Details 2) (USD $) | 9 Months Ended |
|---|---|
Sep. 30, 2011 | |
Contingent Receivable from EyeWonder Seller | |
| Changes in fair value of Level 3 assets | |
| Created in EyeWonder acquisition | $ 4,843,000 |
| Balance at the end of the period | 4,843,000 |
Match Point Earnout | |
| Reconciliation of changes in the fair values of level 3 liabilities | |
| Balance at the beginning of period | 1,602,000 |
| Change in fair value during the period | 205,000 |
| Balance at the end of period | 1,807,000 |
EyeWonder Contingent Consideration | |
| Changes in fair value of Level 3 assets | |
| Amount set aside from purchase price for certain transition cost | $ 5,000,000 |
| Period for which the amount is set aside to meet transition costs (in years) | 1 |