Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
Jan. 31, 2020	Jan. 31, 2019
Cash flows from operating activities:
Net loss	$ (8,921)	$ (38,002)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization expense	2,016	2,924
Loss on sale of fixed assets	5,423
Provision for bad debts	628	1,779
Loss on impairment of goodwill and long-lived assets		17,015
Stock-based compensation expense	1,151	2,939
Deferred income taxes	(203)	(4)
Realized and unrealized foreign currency transaction loss	2,126	3,459
Gain on sale of investment in affiliate and other investments, net	(1,495)	(175)
Other		53
Changes in operating assets and liabilities:
Accounts receivable	7,134	513
Unbilled receivables	(17,840)	(2,468)
Inventory	924	(260)
Prepaid expenses and other current assets and other assets	1,609	(877)
Accounts payable	(1,149)	2,219
Accrued expenses and other liabilities	(170)	(7,087)
Deferred revenue	(4,565)	(3,379)
Other	(1,462)	(173)
Net cash used in operating activities	(14,794)	(21,524)
Cash flows from investing activities:
Purchases of property and equipment	(281)	(364)
Proceeds from sale of building and land	600
Cash paid for acquisitions, net	(3,838)
Purchases of marketable securities	(790)	(8,510)
Proceeds from sales and maturities of marketable securities	6,576	6,652
Proceeds from sale of investment in affiliate, net	1,495	175
Net cash provided by (used in) investing activities	3,762	(2,047)
Cash flows from financing activities:
Proceeds from issuance of common stock	614	83
Repurchases of common stock	(142)
Other financing activities		(43)
Net cash provided by financing activities	472	40
Effect of exchange rate on cash and cash equivalents	(460)	187
Net decrease in cash, cash equivalents and restricted cash	(11,020)	(23,344)
Cash, cash equivalents and restricted cash at beginning of period	20,317	43,661
Cash, cash equivalents and restricted cash at end of period	9,297	20,317
Supplemental disclosure of cash flow information
Income taxes paid	463	$ 2,965
Non-cash activities:
Right-of-use assets obtained in exchange for lease obligations	5,600
Fair value of common stock issued in acquisition	$ 874

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