Debt	3 Months Ended
Apr. 30, 2015
Debt Disclosure [Abstract]
Debt	Note 9. Debt Line of Credit In August 2013, we entered into a two-year $100.0 million secured revolving credit facility. The credit facility is denominated in U.S. dollars and, depending on certain conditions, each borrowing is subject to a floating interest rate equal to the London Interbank Offer Rate (LIBOR) plus 3.0% or the Alternate Base Rate (ABR) plus 2.0%. In addition, there is a commitment fee of 0.5% on outstanding unused commitment amount. At closing, we drew $34.0 million at 3.4% (six month LIBOR plus 3.0%) which we used to repay previous loans, as well as for other general corporate purposes. In July 2014, we drew an additional $12.0 million under the credit facility at 3.3% (six month LIBOR plus 3.0%). In September 2014, we paid down $6.0 million and amended the credit facility to reduce our borrowing capacity from $100.0 million to $75.0 million and extend the facility through August 2016. Concurrently and in conjunction with the execution of our new headquarters lease in September 2014, letters of credit in the aggregate amount of $25.0 million were issued under the credit facility. These letters of credit were subject to interest at 3.25% per annum. In March 2015, we amended the credit facility to reduce our borrowing capacity to $60.0 million as of April 2015, and to increase certain limitations on the amount of capital asset and real estate related obligations we may incur. In connection with this amendment, the letters of credit under the credit facility were cancelled, and a new letter of credit in the amount of $25.0 million was issued by a party not affiliated with the line of credit, which was secured by a certificate of deposit in the same amount. As of April 30, 2015, the outstanding borrowings under the credit facility were $40.0 million, and our remaining borrowing capacity under the credit facility was $20.0 million. Borrowings under the credit facility are collateralized by substantially all of our assets. The credit facility also contains various covenants, including covenants related to the delivery of financial and other information, the maintenance of quarterly financial covenants, material adverse effects, as well as limitations on dispositions, mergers or consolidations and other corporate activities. As of April 30, 2015, we were in compliance with all financial covenants. In connection with the credit facility, we incurred interest expense of $620,000 and $523,000 during the three months ended April 30, 2015 and 2014, respectively. During the same periods, we capitalized $6,000 and $89,000 of interest costs. Interest expense also includes amortization of issuance costs, unused commitment fees and fees on letters of credit which are recognized over the related term of the borrowing.

Note 9. Debt

Line of Credit

In August 2013, we entered into a two-year $100.0 million secured revolving credit facility. The credit facility is denominated in U.S. dollars and, depending on certain conditions, each borrowing is subject to a floating interest rate equal to the London Interbank Offer Rate (LIBOR) plus 3.0% or the Alternate Base Rate (ABR) plus 2.0%. In addition, there is a commitment fee of 0.5% on outstanding unused commitment amount. At closing, we drew $34.0 million at 3.4% (six month LIBOR plus 3.0%) which we used to repay previous loans, as well as for other general corporate purposes. In July 2014, we drew an additional $12.0 million under the credit facility at 3.3% (six month LIBOR plus 3.0%). In September 2014, we paid down $6.0 million and amended the credit facility to reduce our borrowing capacity from $100.0 million to $75.0 million and extend the facility through August 2016. Concurrently and in conjunction with the execution of our new headquarters lease in September 2014, letters of credit in the aggregate amount of $25.0 million were issued under the credit facility. These letters of credit were subject to interest at 3.25% per annum.

In March 2015, we amended the credit facility to reduce our borrowing capacity to $60.0 million as of April 2015, and to increase certain limitations on the amount of capital asset and real estate related obligations we may incur. In connection with this amendment, the letters of credit under the credit facility were cancelled, and a new letter of credit in the amount of $25.0 million was issued by a party not affiliated with the line of credit, which was secured by a certificate of deposit in the same amount. As of April 30, 2015, the outstanding borrowings under the credit facility were $40.0 million, and our remaining borrowing capacity under the credit facility was $20.0 million.

Borrowings under the credit facility are collateralized by substantially all of our assets. The credit facility also contains various covenants, including covenants related to the delivery of financial and other information, the maintenance of quarterly financial covenants, material adverse effects, as well as limitations on dispositions, mergers or consolidations and other corporate activities. As of April 30, 2015, we were in compliance with all financial covenants.

In connection with the credit facility, we incurred interest expense of $620,000 and $523,000 during the three months ended April 30, 2015 and 2014, respectively. During the same periods, we capitalized $6,000 and $89,000 of interest costs. Interest expense also includes amortization of issuance costs, unused commitment fees and fees on letters of credit which are recognized over the related term of the borrowing.