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v3.23.3

Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021
Cash flows from operating activities |  |  |
Net income | $ 32,533 | $ 49,362 | $ 20,327
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |  |
Depreciation and amortization | 6,054 | 3,426 | 2,302
Change in allowance for doubtful accounts | 0 | 0 | 210
Amortization of discount on investments | (3,512) | (42) | (7)
Deferred taxes | (2,114) | (326) | (187)
Stock-based compensation | 3,578 | 2,339 | 1,280
Changes in operating assets and liabilities, net of acquired amounts: |  |  |
Accounts receivable | 26,277 | (24,234) | (9,151)
Inventories, net | (15,083) | (43,744) | (13,116)
Other assets | (1,466) | (282) | (531)
Accounts payable and accrued expenses | (26,257) | 14,502 | 9,776
Net cash provided by operating activities | 20,010 | 1,001 | 10,903
Cash flows from investing activities |  |  |
Purchases of property, plant and equipment and intangible assets | (8,384) | (9,148) | (2,046)
Purchases of investments | (210,923) | (248) | (24,809)
Proceeds from sales and maturities of investments | 107,060 | 17,386 | 13,255
Business acquisition, net of cash acquired | 0 | (16,187) | 0
Net cash used in investing activities | (112,247) | (8,197) | (13,600)
Cash flows from financing activities |  |  |
Issuance (Repayment) of long-term debt | (16,700) | 16,700 | 0
Proceeds from issuance of common stock under employee stock purchase plan | 611 | 544 | 384
Repurchase of shares for payment of withholding taxes for vested restricted stock grants | (1,220) | (1,406) | (462)
Withholding related to exercise of stock options | (491) | (5,183) | (458)
Issuance of stock under equity compensation plans | 954 | 0 | 0
Net proceeds from issuance of common stock | 130,262 | 0 | 0
Net cash provided by (used in) financing activities | 113,416 | 10,655 | (536)
Effect of exchange rates on cash | (2) | (24) | 0
Increase (decrease) in cash and cash equivalents | 21,177 | 3,434 | (3,233)
Cash and cash equivalents, beginning of year | 16,650 | 13,216 | 16,450
Cash and cash equivalents, end of year | 37,827 | 16,650 | 13,216
Supplemental disclosures for cash flow information |  |  |
Cash paid during the year for income taxes | 12,967 | 13,744 | 5,505
Cash paid for interest | 463 | 119 | 0
Non-cash financing activities |  |  |
Cashless exercise of stock options | $ 566 | $ 1,624 | $ 1,271

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