Credit Facility	9 Months Ended
Jan. 31, 2012
Credit Facility [Abstract]
Credit Facility	5. Credit Facility On June 30, 2011, the Company entered into a revolving credit note agreement with Wells Fargo. Under the terms of the agreement, the Company is entitled to borrow up to $8.0 million. The total amount that can be borrowed under the revolver is based on a multiplier factor of the trailing twelve months of maintenance revenue. As of January 31, 2012, the Company was eligible to borrow the entire $8.0 million. Interest expense is recorded on funds borrowed at the prevailing LIBOR rate plus 5.00% per annum with a minimum rate of 6.25% (6.25% as of January 31, 2012) and has a maturity date of June 30, 2015. As of January 31, 2012, there was $5.5 million outstanding on the revolver.

5. Credit Facility

On June 30, 2011, the Company entered into a revolving credit note agreement with Wells Fargo. Under the terms of the agreement, the Company is entitled to borrow up to $8.0 million. The total amount that can be borrowed under the revolver is based on a multiplier factor of the trailing twelve months of maintenance revenue. As of January 31, 2012, the Company was eligible to borrow the entire $8.0 million. Interest expense is recorded on funds borrowed at the prevailing LIBOR rate plus 5.00% per annum with a minimum rate of 6.25% (6.25% as of January 31, 2012) and has a maturity date of June 30, 2015. As of January 31, 2012, there was $5.5 million outstanding on the revolver.