Net Loss per Common Share

6 Months Ended

Sep. 30, 2011

Net Loss per Common Share [Abstract]

Net Loss per Common Share

9. Net Loss per Common Share

The following options outstanding and unvested restricted stock at September 30, 2011 and 2010, to purchase shares of common stock, were excluded from diluted loss per common share because of their anti-dilutive effect:

	Number of options and unvested restricted stock		Range of exercise prices
September 30, 2011		2,177,000	$	0.71 to $8.93
September 30, 2010		2,172,000	$	0.71 to $5.19