Unaudited statements of cash flows - USD ($) $ in Thousands		9 Months Ended
		Oct. 31, 2020	Oct. 31, 2019
Cash flows from operating activities:
Net loss		$ (19,196)	$ (16,625)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization		11,656	10,267
Stock-based compensation expense		9,616	3,832
Change in fair value of warrants liability		0	3,307
Amortization of debt discount		318	412
Loss on extinguishment of debt		0	1,073
Cost of hardware purchased by customers		604	512
Deferred contract acquisition costs amortization		2,280	1,465
Non-cash operating lease expense		1,228	0
Deferred tax asset		279	0
Changes in operating assets and liabilities
Accounts receivable		(5,616)	(3,899)
Prepaid expenses and other assets		(1,940)	(2,943)
Deferred contract acquisition costs		(1,901)	(1,414)
Accounts payable		(2,300)	1,629
Accrued expenses and other liabilities		3,982	3,098
Lease liability		(1,419)	0
Deferred revenue		1,222	(1,162)
Net cash used in operating activities		(1,187)	(448)
Cash used in investing activities:
Capitalized internal-use software		(4,663)	(4,329)
Purchase of property and equipment		(6,440)	(4,826)
Net cash used in investing activities		(11,103)	(9,155)
Cash provided by financing activities:
Proceeds from issuance of common stock in equity offerings, net of underwriters' discounts and commissions		174,800	130,781
Payment of preferred stock dividends		0	(14,955)
Proceeds from issuance of common stock upon exercise of stock options		3,351	445
Treasury stock to recover tax withholdings on stock compensation awards		(869)	0
Payment of offering costs		(226)	(5,944)
Proceeds from revolving line of credit		0	9,876
Payments of revolving line of credit		0	(17,676)
Proceeds from term loan		0	20,000
Repayment of term loan and loan payable		0	(21,042)
Insurance financing arrangement		2,009	0
Principal portion of finance lease payments		(1,797)	(1,624)
Principal payments on financing arrangements		(881)	0
Debt extinguishment costs		0	(300)
Debt issuance costs		(69)	(112)
Loan facility fee payment		(225)	0
Net cash provided by financing activities		176,093	99,449
Net increase in cash and cash equivalents		163,803	89,846
Cash and cash equivalents – beginning of period		90,315	1,543
Cash and cash equivalents – end of period		254,118	91,389
Supplemental information of non-cash investing and financing information:
Right-of-use assets recorded in exchange for lease liabilities	[1]	4,420	0
Property and equipment acquisitions through finance leases		6,050	1,738
Capitalized software acquired through vendor financing		174	0
Purchase of property and equipment and capitalized software included in accounts payable		1,681	546
Issuance of warrants related to debt		0	833
Cashless transfer of term loan and related accrued fees into increase in debt balance		20,257	0
Cashless transfer of lender fees through increase in debt balance		406	0
Deferred offering costs included in accounts payable and accrued liabilities		64	0
Cashless exercise of common stock warrants		0	2,521
Cash payments for:
Interest		$ 1,047	$ 1,834

[1] Includes $2,741 initial right of use asset recorded upon adoption of ASC 842.