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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jul. 31, 2022 | Jul. 31, 2021
Cash flows from operating activities: |  |
Net loss | $ (428) | $ (1,326)
Adjustments to reconcile net loss to net cash provided by operating activities: |  |
Stock-based compensation expense | 6,842 | 6,515
Depreciation and amortization of capital expenditures | 1,739 | 1,548
Amortization of intangible assets | 698 | 652
Amortization of operating lease right-of-use assets | 1,449 | 1,531
Deferred income tax benefit | (2,043) |
Other | 26 | 24
Changes in operating assets and liabilities: |  |
Accounts receivable, net | 973 | 400
Inventories and deferred inventory costs | (7,158) | (1,600)
Prepaid expenses and other assets | (2,326) | (3,007)
Accounts payable, accrued expenses and other liabilities | 2,690 | (2,127)
Deferred revenue | 520 | 384
Net cash provided by operating activities | 2,982 | 2,994
Cash flows from investing activities: |  |
Proceeds from maturities and sales of short-term investments | 9,125 | 9,900
Purchases of short-term investments | (3,869) | (8,859)
Capital expenditures | (2,812) | (1,742)
Business acquisition | (9,771) |
Net cash used in investing activities | (7,327) | (701)
Cash flows from financing activities: |  |
Proceeds from issuance of common stock | 1,554 | 1,621
Net cash provided by financing activities | 870 | 476
Net (decrease) increase in cash and cash equivalents | (3,475) | 2,769
Cash and cash equivalents at beginning of period | 19,667 | 17,298
Cash and cash equivalents at end of period | 16,192 | 20,067
Restricted Stock Units (RSUs) |  |
Cash flows from financing activities: |  |
Shares repurchased for tax withholdings on vesting of restricted stock units ("RSU") | $ (684) | $ (1,145)

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- Definition Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585 + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=126975305&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585 + Details
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- Definition The cash outflow for securities or other assets acquired, which qualify for treatment as an investing activity and are to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585 + Details
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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585 + Details
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- Definition The cash inflow from sales, maturities, prepayments, calls and collections of all investments, including securities and other assets, having ready marketability and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3179-108585 + Details
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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 + Details
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