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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Jun. 30, 2022 | Jun. 30, 2021
Cash flows from operating activities: |  |
Net income | $ 23,019 | $ 2,536
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation and amortization | 12,124 | 10,470
Amortization of right-of-use assets for operating leases | 12,636 | 11,856
Bad debt expense | 2,077 | 1,025
Stock-based compensation | 3,273 | 1,186
Deferred income taxes | (6,283) | 0
Training equipment credits earned, net | (921) | 504
Unrealized gain (loss) on interest rate swap | 1,368 | (352)
Other gains (losses), net | 537 | (330)
Changes in assets and liabilities: |  |
Receivables | (8,234) | 6,093
Prepaid expenses | (1,439) | (4,906)
Other assets | (621) | (773)
Notes receivable | 956 | (956)
Accounts payable and accrued expenses | 384 | (1,693)
Deferred revenue | (16,809) | 1,299
Income tax receivable | 0 | 2,522
Accrued tool sets and other current liabilities | 891 | 1,122
Operating lease liability | (10,778) | (13,546)
Other liabilities | (4,274) | (1,274)
Net cash provided by operating activities | 7,906 | 14,783
Cash flows from investing activities: |  |
Cash paid for acquisition, net of cash acquired | (26,514) | 0
Purchase of property and equipment | (69,615) | (54,245)
Proceeds from disposal of property and equipment | 7 | 6
Proceeds from maturities of held-to-maturity securities | 0 | 37,401
Return of capital contribution from unconsolidated affiliate | 188 | 226
Net cash used in investing activities | (95,934) | (16,612)
Cash flows from financing activities: |  |
Proceeds from term loan | 38,000 | 31,150
Debt issuance costs related to the term loan | (355) | (272)
Payment of preferred stock cash dividend | (2,617) | (2,625)
Payments on term loans and finance leases | (19,004) | (162)
Payment of payroll taxes on stock-based compensation through shares withheld | (633) | (401)
Net cash provided by financing activities | 15,391 | 27,690
Change in cash, cash equivalents and restricted cash | (72,637) | 25,861
Cash and cash equivalents, beginning of period | 133,721 | 76,803
Restricted cash, beginning of period | 12,256 | 12,116
Cash, cash equivalents and restricted cash, beginning of period | 145,977 | 88,919
Cash and cash equivalents, end of period | 70,713 | 102,856
Restricted cash, end of period | 2,627 | 11,924
Cash, cash equivalents and restricted cash, end of period | 73,340 | 114,780
Supplemental disclosure of cash flow information: |  |
Income taxes paid (refunded) | 696 |
Income taxes paid (refunded) |  | (2,443)
Interest paid | 1,208 | 133
Training equipment obtained in exchange for services | 1,247 | 400
Depreciation of training equipment obtained in exchange for services | 691 | 922
Accounts payable and accrued expenses for capital expenditures | (374) | (621)
Preferred dividends payable | 1,296 | 1,313
CARES Act funds received for student emergency grants (See Note 21) | 6,689 | 11,902
CARES Act funds disbursed for student emergency grants (See Note 21) | (6,774) | (11,528)
CARES Act funds received for institutional costs | $ 0 | $ 2,677

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