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v2.4.0.6

Debt (Details) (USD $) | 0 Months Ended | 3 Months Ended |  | 0 Months Ended | 3 Months Ended | 0 Months Ended | 3 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Apr. 04, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Jun. 05, 2012 Hercules Technology Growth Capital [Member] | Jun. 30, 2012 Hercules Technology Growth Capital [Member] | Apr. 04, 2012 Capital Ventures International [Member] | Apr. 03, 2012 Capital Ventures International [Member] | Jun. 30, 2012 Capital Ventures International [Member]
Private placement |  |  |  |  |  | $ 25,000,000 |  |
Net proceeds after fees and expenses of purchase agreement |  |  |  |  |  | 23,200,000 |  |
Shares registered for resale | 10,262,311 |  |  |  |  |  |  |
Percent of senior convertible notes |  |  |  |  |  | 7.00% |  |
Conversion price |  |  |  |  |  |  | $ 4.85 |
Fair value of conversion feature |  |  |  |  |  | 3,800,000 |  |
Amount of additional convertible notes and warrants |  | 15,000,000 |  |  |  |  |  |
Legal and origination costs |  |  |  |  | 300,000 |  |  | 1,800,000
Total debt discount being amortized into interest expense |  | 2,800,000 |  |  | 1,200,000 |  |  | 12,600,000
Non-cash interest expense |  | 2,282,000 |  |  | 100,000 |  |  | 2,200,000
End of term fee |  |  |  |  | 500,000 |  |  |
Premium over closing price |  |  |  |  |  |  | 20.00% |
Value of warrants received to purchase common stock |  |  |  |  |  | 3,100,000 |  |
Interest rate on loan |  |  |  | 11.00% |  |  |  |
Prime rate, minimum |  |  |  | 3.75% |  |  |  |
Number of shares received from warrants received to purchase common stock |  |  |  | 139,000 |  |  |  |
Fair value of warrants at issuance |  |  |  | 400,000 |  | 7,000,000 |  |
Strike price per share |  |  |  | $ 3.59 |  | $ 5.45 |  |
Aggregate principal amount of convertible notes and warrants |  | 15,000,000 |  |  |  |  |  |
Borrowed amount |  |  |  | 10,000,000 |  |  |  |
Proceeds from Issuance of Debt |  |  |  | 9,700,000 |  |  |  |
Adverse purchase commitments |  | $ 17,516,000 | $ 25,894,000 |  |  |  |  |

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