| Consolidated Statements of Operations [Abstract] | |
| Revenue | 112.76M |
| Cost of operations | 46.94M |
| Sales and marketing | 30.93M |
| General and administrative | 23.53M |
| Depreciation and amortization | 6.85M |
| Interest income | 21K |
| Interest expense | 5.83M |
| Loss on convertible notes | |
| Gain (loss) on investments | 0 |
| Other income (expense), net | |
| Income (loss) from continuing operations before income tax provision (benefit) | -1.31M |
| Income tax provision (benefit) | 226K |
| Income from continuing operations | |
| Income from discontinued operations, net of a tax provision of $4,812 for the three and six months ended June 30, 2011 | |
| Net income | -1.54M |
| Basic income per common share: | |
| Income from continuing operations | |
| Income from discontinued operations | |
| Net income | |
| Diluted income per common share: | |
| Income from continuing operations | |
| Income from discontinued operations | |
| Net income | |
| Weighted-average shares outstanding used in computing per share amounts: | |
| Basic | |
| Diluted | |