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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
9 Months Ended
May 31, 2022
May 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net income $ 6,228,581 $ 5,218,671
Adjustments to reconcile net income to net cash provided by operating activities:    
Stock-based compensation 698,649 503,338
Change in allowance for doubtful accounts 0 30,000
Depreciation expense 722,443 681,484
Amortization expense 474,121 151,710
Remeasurement gain on acquisition of equity method investee (3,951,550) 0
Equity in income from joint ventures (3,662,178) (5,779,260)
Dividends received from joint ventures 5,723,176 3,505,455
Deferred income taxes 152,372 (8,526)
Changes in current assets and liabilities:    
Trade, excluding joint ventures (1,348,254) (2,904,707)
Trade, joint ventures (232,364) (564,149)
Fees for services provided to joint ventures 261,913 (499,954)
Income taxes (134,942) (223,024)
Inventories (2,093,668) (177,927)
Prepaid expenses and other (635,478) (223,457)
Accounts payable 908,605 703,100
Income tax payable (420,529) (162,615)
Accrued liabilities (912,803) 803,555
Net cash provided by operating activities 1,778,094 1,053,695
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 (941) (800,000)
Proceeds from the sale of available for sale securities 0 1,219,670
Investment in joint venture (341,392) 0
Purchases of property and equipment (961,704) (723,441)
Investments in patents (164,994) (96,009)
Net cash used in investing activities (6,531,034) (399,780)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Dividend received by non-controlling interest (402,729) (200,000)
Proceeds from line of credit 4,700,000 0
Dividends paid on NTIC common stock (1,934,906) (1,183,943)
Proceeds from the exercise of stock options 198,640 0
Proceeds from employee stock purchase plan 73,645 74,334
Net cash provided by (used in) financing activities 2,634,650 (1,309,609)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS 560,918 133,585
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS (1,557,372) (522,109)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD 7,680,641 6,403,032
CASH AND CASH EQUIVALENTS AT END OF PERIOD $ 6,123,269 $ 5,880,923