Debt	9 Months Ended
Oct. 31, 2017
Debt Disclosure [Abstract]
Debt	Debt On March 16, 2016, the Company entered into a Loan and Security agreement with Silicon Valley Bank that provides for a $15.0 million revolving credit line ("Revolving Line") and a $7.0 million Letter of Credit facility (together with the Revolving Line, the "Credit Agreement"). The Credit Agreement matures on March 16, 2018. No significant debt issuance costs were incurred as part of the transaction. The Company is obligated to pay ongoing commitment fees at a rate equal to 0.25% for the Revolving Line and 1.75% for any issued letters of credit. Subject to certain terms of the loan agreement, the Company may borrow, prepay and reborrow amounts under the Revolving Line at any time during the agreement and amounts repaid or prepaid may be reborrowed. Interest rates on borrowings under the Revolving Line will be based on one-half of one percent (0.50%) above the prime rate. The prime rate is defined as the rate of interest per annum from time to time published in the money rate section of the Wall Street Journal. The Credit Agreement contains certain customary affirmative and negative covenants, including an adjusted quick ratio of at least 1.25 to 1.00, minimum revenue, a limit on the Company's ability to incur additional indebtedness, dispose of assets, make certain acquisition transactions, pay dividends or make distributions, and certain other restrictions on the Company's activities each defined specifically in the agreement. As of January 31, 2017, the Company had $5.0 million outstanding on its Revolving Line classified as long term debt, and its book value approximated its fair value. On April 28, 2017, the Company repaid the $5.0 million on its Revolving Line. As of October 31, 2017, the Company had no debt outstanding and was in compliance with all debt covenants. Availability under the Revolving Line was $15.0 million as of October 31, 2017.

Debt

On March 16, 2016, the Company entered into a Loan and Security agreement with Silicon Valley Bank that provides for a $15.0 million revolving credit line ("Revolving Line") and a $7.0 million Letter of Credit facility (together with the Revolving Line, the "Credit Agreement"). The Credit Agreement matures on March 16, 2018. No significant debt issuance costs were incurred as part of the transaction. The Company is obligated to pay ongoing commitment fees at a rate equal to 0.25% for the Revolving Line and 1.75% for any issued letters of credit.

Subject to certain terms of the loan agreement, the Company may borrow, prepay and reborrow amounts under the Revolving Line at any time during the agreement and amounts repaid or prepaid may be reborrowed. Interest rates on borrowings under the Revolving Line will be based on one-half of one percent (0.50%) above the prime rate. The prime rate is defined as the rate of interest per annum from time to time published in the money rate section of the Wall Street Journal.

The Credit Agreement contains certain customary affirmative and negative covenants, including an adjusted quick ratio of at least 1.25 to 1.00, minimum revenue, a limit on the Company's ability to incur additional indebtedness, dispose of assets, make certain acquisition transactions, pay dividends or make distributions, and certain other restrictions on the Company's activities each defined specifically in the agreement.

As of January 31, 2017, the Company had $5.0 million outstanding on its Revolving Line classified as long term debt, and its book value approximated its fair value. On April 28, 2017, the Company repaid the $5.0 million on its Revolving Line. As of October 31, 2017, the Company had no debt outstanding and was in compliance with all debt covenants. Availability under the Revolving Line was $15.0 million as of October 31, 2017.