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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 31, 2022 | Jul. 31, 2021 | Jul. 31, 2022 | Jul. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES |  |  |  |
Net income | $ 4,222 | $ 12,870 | $ 11,707 | $ 23,636
Adjustments to reconcile net income to net cash (used in) provided by operating activities |  |  |  |
Stock compensation expense | 1,100 | 900 | 1,979 | 1,609
Depreciation | 747 | 859 | 1,556 | 1,741
Lease expense | 500 | 1,100 | 1,319 | 1,938
Equity in (income) loss of solar energy investments |  |  | (1,070) | 325
Deferred income tax expense |  |  | 373 | 1,001
Amortization of purchased intangible assets | 233 | 225 | 399 | 453
Other |  |  | (609) | (96)
Changes in operating assets and liabilities |  |  |  |
Accounts receivable |  |  | 2,090 | (14,407)
Contract assets |  |  | (3,774) | 1,258
Other assets |  |  | 9,252 | (3,161)
Accounts payable and accrued expenses |  |  | (16,124) | (8,793)
Contract liabilities |  |  | (63,874) | 41,680
Net cash (used in) provided by operating activities |  |  | (56,776) | 47,184
CASH FLOWS FROM INVESTING ACTIVITIES |  |  |  |
Purchases of short-term investments |  |  | (175,000) |
Maturities of short-term investments |  |  | 90,000 | 50,000
Purchases of property, plant and equipment |  |  | (638) | (1,011)
Investments in solar energy projects |  |  |  | (4,085)
Net cash (used in) provided by investing activities |  |  | (85,638) | 44,904
CASH FLOWS FROM FINANCING ACTIVITIES |  |  |  |
Common stock repurchases |  |  | (53,168) |
Payments of cash dividends |  |  | (7,192) | (7,884)
Proceeds from the exercise of stock options |  |  | 66 | 1,023
Net cash used in financing activities |  |  | (60,294) | (6,861)
EFFECTS OF EXCHANGE RATE CHANGES ON CASH |  |  | (4,420) | (483)
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS |  |  | (207,128) | 84,744
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD |  |  | 350,472 | 366,671
CASH AND CASH EQUIVALENTS, END OF PERIOD | $ 143,344 | $ 451,415 | $ 143,344 | $ 451,415

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