Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Oct. 31, 2013	Oct. 31, 2012
Cash flows provided by (used in) operating activities:
Net (loss) income	$ (823)	$ 1,103
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Depreciation and amortization	1,561	1,321
Stock-based compensation expense	846	710
Deferred rent expense	(424)	(142)
Non-cash interest	162	444
Loss on extinguishment of debt, non-cash portion	465
Mark-to-market adjustment of preferred stock warrant liability		(228)
Mark-to-market adjustment of equity participation right		(276)
Deferred income taxes	(1,614)	244
Net change in operating assets and liabilities:
Accounts receivable	20,398	15,780
Prepaid expenses and other current assets	(201)	104
Other assets	(55)	2,053
Accounts payable	(887)	(1,722)
Accrued expenses	(1,107)	(4,391)
Other liabilities	84	(76)
Deferred revenue	(13,978)	(19,062)
Net cash provided by (used in) operating activities	4,427	(4,138)
Cash flows used in investing activities:
Purchases of property and equipment	(674)	(348)
Net cash used in investing activities	(674)	(348)
Cash flows (used in) provided by financing activities:
Net decrease in line of credit		(7,000)
Proceeds from borrowings under long-term debt		3,500
Proceeds from stock option and warrant exercises	173	31
Payments of long-term debt	(7,365)	(816)
Payments of capital lease obligations	(1,532)	(675)
Proceeds from initial public offering, net of $4,174 issuance costs		34,592
Payment of debt issuance costs	(213)	(100)
Net cash (used in) provided by financing activities	(8,937)	29,532
Effect of exchange rate changes on cash	(93)	66
Net (decrease) increase in cash and cash equivalents	(5,277)	25,112
Cash and cash equivalents, beginning of period	30,716	11,468
Cash and cash equivalents, end of period	25,439	36,580
Supplemental cash flow disclosures:
Cash paid for interest	533	751
Cash paid for income taxes	289	773
Supplemental disclosure of non-cash investing and financing activities:
Acquisition of equipment through capital leases	563	2,116
Conversion of preferred stock into common stock		32,685
Conversion of preferred stock warrants into common stock warrants		$ 1,324