Debt	3 Months Ended
Jul. 31, 2012
Debt [Abstract]
Debt	6. Debt On July 18, 2007, the Company entered into a loan and security agreement, or the Loan Agreement, with a financial institution under which the Company secured a revolving line of credit with a borrowing capacity of up to $2.0 million and a $0.3 million equipment loan facility, which terminated by its maturity on January 18, 2011. On November 30, 2008, the Company entered into an amendment to the Loan Agreement, increasing the borrowing capacity of the revolving line of credit to $7.0 million and creating a credit card services subfacility of up to $0.2 million. On July 20, 2009, the Company entered into a second amendment that created a letter of credit subfacility of up to $0.9 million, and on January 22, 2010, the Company entered into a third amendment, increasing the letter of credit sublimit to $1.0 million to increase the face amount of the letter of credit in connection with its expanded leased office space in Austin, Texas. On September 27, 2010, the Company entered into a fourth amendment to the Loan Agreement increasing the borrowing capacity of the revolving line of credit to $10.0 million with an option to increase the line to $15.0 million and the combined letter of credit and credit card services sub-facility to $2.65 million. On May 12, 2011, the Company increased the face amount of the standby letter of credit issued under the Loan Agreement in favor of its landlord by $0.8 million and on February 28, 2012, the Company increased the face amount of the standby letter of credit issued under the Loan Agreement in favor of its landlord by another $0.5 million as collateral for additional office space leased at the Company’s headquarters in Austin, Texas. On January 31, 2012, the Company entered into a fifth amendment to the Loan Agreement. This amendment increased the borrowing capacity of the revolving line of credit to $30.0 million. The Company may request advances in an aggregate outstanding amount not to exceed the lesser of (a) $30.0 million or (b) 100% of eligible monthly service fees as defined in the Loan Agreement, inclusive of any amounts outstanding under the credit card services sublimit. The revolving line of credit expires on January 31, 2015 with all advances immediately due and payable. The revolving line of credit bears interest at the prime based rate as defined in the Loan Agreement except during any period of time during which, in accordance with the Loan Agreement, the line bears interest at the daily adjusting LIBOR rate. Borrowings under the revolving line of credit are collateralized by substantially all assets of the Company. The Loan Agreement contains certain financial and nonfinancial covenants. As of July 31, 2012 and July 31, 2011, the Company was in compliance with the terms of these covenants. On November 4, 2008, the Company entered into a pledge and security agreement with a financial institution for a standby letter of credit for credit card services from a separate financial institution for an amount not to exceed $0.1 million. The Company pledged a security interest in its money market account, in which the balance must equal at least the credit extended. On March 17, 2010, the standby letter of credit for credit card services was increased to $0.3 million. On May 18, 2011, the standby letter of credit for credit card services was increased to $0.5 million. This letter of credit expires annually and the pledged security interest is recorded as short-term restricted cash in the Company’s financial statements.

Debt

3 Months Ended

Jul. 31, 2012

6. Debt

On July 18, 2007, the Company entered into a loan and security agreement, or the Loan Agreement, with a financial institution under which the Company secured a revolving line of credit with a borrowing capacity of up to $2.0 million and a $0.3 million equipment loan facility, which terminated by its maturity on January 18, 2011. On November 30, 2008, the Company entered into an amendment to the Loan Agreement, increasing the borrowing capacity of the revolving line of credit to $7.0 million and creating a credit card services subfacility of up to $0.2 million. On July 20, 2009, the Company entered into a second amendment that created a letter of credit subfacility of up to $0.9 million, and on January 22, 2010, the Company entered into a third amendment, increasing the letter of credit sublimit to $1.0 million to increase the face amount of the letter of credit in connection with its expanded leased office space in Austin, Texas. On September 27, 2010, the Company entered into a fourth amendment to the Loan Agreement increasing the borrowing capacity of the revolving line of credit to $10.0 million with an option to increase the line to $15.0 million and the combined letter of credit and credit card services sub-facility to $2.65 million. On May 12, 2011, the Company increased the face amount of the standby letter of credit issued under the Loan Agreement in favor of its landlord by $0.8 million and on February 28, 2012, the Company increased the face amount of the standby letter of credit issued under the Loan Agreement in favor of its landlord by another $0.5 million as collateral for additional office space leased at the Company’s headquarters in Austin, Texas. On January 31, 2012, the Company entered into a fifth amendment to the Loan Agreement. This amendment increased the borrowing capacity of the revolving line of credit to $30.0 million. The Company may request advances in an aggregate outstanding amount not to exceed the lesser of (a) $30.0 million or (b) 100% of eligible monthly service fees as defined in the Loan Agreement, inclusive of any amounts outstanding under the credit card services sublimit. The revolving line of credit expires on January 31, 2015

with all advances immediately due and payable. The revolving line of credit bears interest at the prime based rate as defined in the Loan Agreement except during any period of time during which, in accordance with the Loan Agreement, the line bears interest at the daily adjusting LIBOR rate. Borrowings under the revolving line of credit are collateralized by substantially all assets of the Company. The Loan Agreement contains certain financial and nonfinancial covenants. As of July 31, 2012 and July 31, 2011, the Company was in compliance with the terms of these covenants.

On November 4, 2008, the Company entered into a pledge and security agreement with a financial institution for a standby letter of credit for credit card services from a separate financial institution for an amount not to exceed $0.1 million. The Company pledged a security interest in its money market account, in which the balance must equal at least the credit extended. On March 17, 2010, the standby letter of credit for credit card services was increased to $0.3 million. On May 18, 2011, the standby letter of credit for credit card services was increased to $0.5 million. This letter of credit expires annually and the pledged security interest is recorded as short-term restricted cash in the Company’s financial statements.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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