Stockholders' Equity (Details 1) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Jun. 30, 2013
Schedule of Option Activity Under Stock Incentive Plans
Number of Shares, Outstanding at the beginning of the year	3,492
Number of Shares, Granted	40
Number of Shares, Exercised	(30)
Number of Shares, Forfeited	(333)
Number of Shares, Outstanding at the end of the period	3,169
Vested and expected to vest at the end of the period	3,163
Number of Shares, Vested at the end of the period	2,955
Schedule of Weighted Average Exercise Price Per Share Under Stock Incentive Plans
Weighted Average Exercise Price Per Share, Outstanding at the beginning of the year (USD per share)	$ 10.26
Weighted Average Exercise Price Per Share, Granted (USD per share)	$ 7.35
Weighted Average Exercise Price Per Share, Exercised (USD per share)	$ 5.63
Weighted Average Exercise Price Per Share, Forfeited (USD per share)	$ 9.69
Weighted Average Exercise Price Per Share, Outstanding at the end of the period (USD per share)	$ 10.32
Weighted Average Exercise Price Per Share, Vested and expected to vest at the end of the period (USD per share)	$ 10.33
Weighted Average Exercise Price Per Share, Vested at the end of the period (USD per share)	$ 10.40

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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