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Consolidated Statements of Cash Flows (Unaudited) - USD ($) | 6 Months Ended
--- | ---
Feb. 28, 2022 | Feb. 28, 2021
CASH FLOWS FROM OPERATING ACTIVITIES: |  |
Net income | $ 5,017,818 | $ 2,908,623
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Stock-based compensation | 465,766 | 342,504
Depreciation expense | 430,991 | 451,498
Amortization expense | 315,631 | 100,821
Change in allowance for doubtful accounts | 0 | 10,000
Remeasurement gain on acquisition of equity method investee | (3,951,550) | 0
Equity in income from joint ventures | (2,297,581) | (3,745,724)
Dividends received from joint ventures | 5,362,636 | 3,323,503
Deferred income taxes | 139,338 | (3,182)
Changes in current assets and liabilities: |  |
Trade, excluding joint ventures | 321,322 | (2,004,152)
Trade, joint ventures | (281,153) | 27,879
Fees for services provided to joint ventures | 426,425 | (388,590)
Income taxes | (286,458) | (270,867)
Inventories | (990,628) | (83,028)
Prepaid expenses and other | (1,136,130) | (450,263)
Accounts payable | 674,147 | 1,036,818
Income tax payable | (376,544) | 290,252
Accrued liabilities | (1,715,302) | 413,157
Net cash provided by operating activities | 2,118,728 | 1,959,249
CASH FLOWS FROM INVESTING ACTIVITIES: |  |
Acquisition of Zerust India business, net of cash acquired (see Note 3) | (5,062,003) | 0
Purchase of available for sale securities | 0 | (868,758)
Proceeds from the sale of available for sale securities | 0 | 500,000
Purchases of property and equipment | (618,533) | (466,572)
Investments in patents | (112,297) | (75,220)
Net cash used in investing activities | (5,792,833) | (910,550)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Proceeds from line of credit | 4,200,000 | 0
Dividends paid on NTIC common stock | (1,288,632) | (591,802)
Proceeds from the exercise of stock options | 139,200 | 0
Dividends received by non-controlling interest | (302,729) | (200,000)
Proceeds from employee stock purchase plan | 38,532 | 36,192
Net cash provided by (used in) financing activities | 2,786,371 | (755,610)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS | 694,904 | 92,414
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS | (192,830) | 385,503
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD | 7,680,641 | 6,403,032
CASH AND CASH EQUIVALENTS AT END OF PERIOD | $ 7,487,811 | $ 6,788,535

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