Debt	12 Months Ended
Jan. 31, 2014
Debt Disclosure [Abstract]
Debt	8. Debt Loan and Security Agreement On January 28, 2011, the Company entered into a Loan and Security Agreement with Gold Hill Capital 2008, L.P. (“Gold Hill”) and Massachusetts Capital Resource Company (the “Loan and Security Agreement”), which provided for term loans of up to $8,500, of which $1,000 was with a related party. On May 31, 2013, as described more fully below, the Company repaid, with available cash on hand, all outstanding obligations under the Loan and Security Agreement. Under the Loan and Security Agreement, which was subsequently amended and extended at various times through January 30, 2012, the Company borrowed $5,000 on January 28, 2011 and an additional $3,500 on March 30, 2012, for a total borrowed amount of $8,500. The Loan and Security Agreement contained customary representations, warranties and reporting requirements, but no financial covenants. The term was for 54 months from the borrowing dates (the January 28, 2011 draw matured on August 1, 2015 and the March 30, 2012 draw matured on October 1, 2016) and the loans bore interest at 10.5% per annum. An additional 2.5% ($125 on the January 28, 2011 draw and $87 on the March 30, 2012 draw) was due at maturity and was originally recorded as a long-term liability and a debt discount. Interest only payments were payable during the first twelve months with principal and interest payments required for forty-two months thereafter. Included in interest expense in the accompanying consolidated statements of operations was interest paid to related parties under the Loan and Security Agreement of $26, $97 and $138 for the fiscal years ended January 31, 2014, 2013 and 2012, respectively. On May 31, 2013 the Company repaid, with available cash on hand, all outstanding obligations under the Loan and Security Agreement. The repayment amount included $6,852 of outstanding principal, $60 of accrued interest and $213 of deferred origination fees that were accrued for in other long-term liabilities in the accompanying consolidated balance sheet. In addition, in accordance with the terms of the agreement, the Company paid a prepayment interest penalty of $290, representing 3% of the amount advanced to the Company under the agreement in January 2011 and 4% of the amount advanced to the Company under the agreement in March 2012. The Company recognized a loss from the extinguishment of this debt of $755 during the second quarter of fiscal year 2014, representing the prepayment interest penalty and the write-off of unamortized debt discount. As a result of this repayment, the Company saved cash interest which would otherwise have been incurred under the agreement of approximately $429 for the remainder of fiscal year 2014, and $428, $170 and $31 for fiscal years 2015, 2016 and 2017, respectively. In connection with the Loan and Security Agreement, and its subsequent amendments and extensions, the Company issued warrants to purchase shares of the Company’s Series G Convertible Preferred Stock (see Note 9). The Company recorded the original fair value of the warrants as debt discount with an offset to preferred stock warrant liability. The debt discount was amortized over the term of the loans using the effective interest method, with the unamortized debt discount as of the date of early payoff being written off to loss from the extinguishment of debt. For the fiscal years ended January 31, 2014, 2013 and 2012, the Company recorded $131, $478 and $295, respectively, in non-cash interest expense relating to this debt discount. Line of Credit In May 2010, the Company secured a $10,000 line of credit agreement with a bank bearing interest at the bank’s prime rate plus 1.50% on existing accounts receivable and 2.5% on certain forecasted renewal invoices, expiring one year from closing. In May 2011, the line of credit was extended for two additional years and on May 23, 2013, the line of credit expired in accordance with its terms. The line of credit agreement required collateral of specific accounts receivable and a first priority security interest in all assets of the Company. The Company was required to pay a collateral handing fee of 0.25% per month on outstanding balances from existing accounts receivable, and 0.375% per month on certain forecasted renewal invoices. The agreement contained certain restrictive financial covenants requiring the maintenance of an adjusted quick ratio, and the Company complied with these covenants throughout the term of the agreement. All amounts outstanding under the agreement were paid in full by the end of the first quarter of fiscal year 2013, and no subsequent borrowings or repayments occurred.

8. Debt

Loan and Security Agreement

On January 28, 2011, the Company entered into a Loan and Security Agreement with Gold Hill Capital 2008, L.P. (“Gold Hill”) and Massachusetts Capital Resource Company (the “Loan and Security Agreement”), which provided for term loans of up to $8,500, of which $1,000 was with a related party. On May 31, 2013, as described more fully below, the Company repaid, with available cash on hand, all outstanding obligations under the Loan and Security Agreement.

Under the Loan and Security Agreement, which was subsequently amended and extended at various times through January 30, 2012, the Company borrowed $5,000 on January 28, 2011 and an additional $3,500 on March 30, 2012, for a total borrowed amount of $8,500. The Loan and Security Agreement contained customary representations, warranties and reporting requirements, but no financial covenants. The term was for 54 months from the borrowing dates (the January 28, 2011 draw matured on August 1, 2015 and the March 30, 2012 draw matured on October 1, 2016) and the loans bore interest at 10.5% per annum. An additional 2.5% ($125 on the January 28, 2011 draw and $87 on the March 30, 2012 draw) was due at maturity and was originally recorded as a long-term liability and a debt discount. Interest only payments were payable during the first twelve months with principal and interest payments required for forty-two months thereafter. Included in interest expense in the accompanying consolidated statements of operations was interest paid to related parties under the Loan and Security Agreement of $26, $97 and $138 for the fiscal years ended January 31, 2014, 2013 and 2012, respectively.

On May 31, 2013 the Company repaid, with available cash on hand, all outstanding obligations under the Loan and Security Agreement. The repayment amount included $6,852 of outstanding principal, $60 of accrued interest and $213 of deferred origination fees that were accrued for in other long-term liabilities in the accompanying consolidated balance sheet. In addition, in accordance with the terms of the agreement, the Company paid a prepayment interest penalty of $290, representing 3% of the amount advanced to the Company under the agreement in January 2011 and 4% of the amount advanced to the Company under the agreement in March 2012. The Company recognized a loss from the extinguishment of this debt of $755 during the second quarter of fiscal year 2014, representing the prepayment interest penalty and the write-off of unamortized debt discount. As a result of this repayment, the Company saved cash interest which would otherwise have been incurred under the agreement of approximately $429 for the remainder of fiscal year 2014, and $428, $170 and $31 for fiscal years 2015, 2016 and 2017, respectively.

In connection with the Loan and Security Agreement, and its subsequent amendments and extensions, the Company issued warrants to purchase shares of the Company’s Series G Convertible Preferred Stock (see Note 9). The Company recorded the original fair value of the warrants as debt discount with an offset to preferred stock warrant liability. The debt discount was amortized over the term of the loans using the effective interest method, with the unamortized debt discount as of the date of early payoff being written off to loss from the extinguishment of debt. For the fiscal years ended January 31, 2014, 2013 and 2012, the Company recorded $131, $478 and $295, respectively, in non-cash interest expense relating to this debt discount.

Line of Credit

In May 2010, the Company secured a $10,000 line of credit agreement with a bank bearing interest at the bank’s prime rate plus 1.50% on existing accounts receivable and 2.5% on certain forecasted renewal invoices, expiring one year from closing. In May 2011, the line of credit was extended for two additional years and on May 23, 2013, the line of credit expired in accordance with its terms.

The line of credit agreement required collateral of specific accounts receivable and a first priority security interest in all assets of the Company. The Company was required to pay a collateral handing fee of 0.25% per month on outstanding balances from existing accounts receivable, and 0.375% per month on certain forecasted renewal invoices. The agreement contained certain restrictive financial covenants requiring the maintenance of an adjusted quick ratio, and the Company complied with these covenants throughout the term of the agreement.

All amounts outstanding under the agreement were paid in full by the end of the first quarter of fiscal year 2013, and no subsequent borrowings or repayments occurred.