Unaudited statements of cash flows - USD ($) $ in Thousands		6 Months Ended
		Jul. 31, 2020	Jul. 31, 2019
Cash flows from operating activities:
Net loss		$ (12,483)	$ (14,188)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization		7,663	6,789
Stock-based compensation expense		6,300	2,067
Change in fair value of warrants liability		0	3,307
Amortization of debt discount		245	265
Loss on extinguishment of debt		0	1,073
Cost of hardware purchased by customers		439	319
Deferred contract acquisition costs amortization		1,775	974
Non-cash operating lease expense		777	0
Deferred tax asset		109	0
Changes in operating assets and liabilities
Accounts receivable		(994)	(679)
Prepaid expenses and other assets		(2,892)	(3,657)
Deferred contract acquisition costs		(1,401)	(858)
Accounts payable		(1,275)	4,548
Accrued expenses and other liabilities		1,116	3,330
Lease liability		(755)	0
Deferred revenue		856	(705)
Net cash (used in) provided by operating activities		(520)	2,585
Cash flows used in investing activities:
Capitalized internal-use software		(2,737)	(2,878)
Purchase of property and equipment		(4,659)	(2,754)
Net cash used in investing activities		(7,396)	(5,632)
Cash flows from financing activities:
Proceeds from IPO, net of underwriters' discounts and commissions		0	130,781
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		0	(1,042)
Repayment of loan payable		0	(20,000)
Payment of preferred stock dividends		0	(14,955)
Insurance financing arrangement		2,009	0
Principal portion of finance lease payments		(1,301)	(1,164)
Principal payments on financing arrangements		(220)	0
Debt extinguishment costs		0	(300)
Debt issuance costs		(69)	(112)
Proceeds from issuance of common stock upon exercise of stock options		2,475	78
Purchase of treasury stock		(869)	0
Payment of offering costs		0	(3,930)
Loan facility fee payment		(225)	0
Net cash provided by financing activities		1,800	101,556
Net (decrease) increase in cash and cash equivalents		(6,116)	98,509
Cash and cash equivalents – beginning of period		90,315	1,543
Cash and cash equivalents – end of period		84,199	100,051
Supplemental information of non-cash investing and financing information:
Right-of-use assets recorded in exchange for lease liabilities	[1]	3,183	0
Property and equipment acquisitions through finance leases		3,657	1,510
Capitalized software acquired through vendor financing		174	0
Deferred issuance costs included in accounts payable and accrued expenses		0	1,958
Purchase of property and equipment and capitalized software included in accounts payable		1,358	699
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
Cash payments for:
Interest		$ 833	$ 1,347

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