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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
9 Months Ended
May 31, 2021
May 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net income $ 5,218,671 $ 710,837
Adjustments to reconcile net income to net cash provided by operating activities:    
Stock-based compensation 503,338 998,122
Allowance for doubtful accounts 30,000 0
Depreciation expense 681,484 637,030
Amortization expense 151,710 175,465
Loss on disposal of property and equipment and patents 0 173,809
Equity in income from joint ventures (5,779,260) (3,466,581)
Dividends received from joint ventures 3,505,455 5,648,153
Deferred income taxes (8,526) 109,646
Changes in current assets and liabilities:    
Trade, excluding joint ventures (2,904,707) 2,065,641
Trade, joint ventures (564,149) (32,904)
Fees for services provided to joint ventures (499,954) 391,880
Income taxes (223,024) 174,623
Inventories (177,927) (1,729,133)
Prepaid expenses and other (223,457) 368,769
Accounts payable 703,100 (882,962)
Income tax payable (162,615) 40,983
Accrued liabilities 803,555 (2,370,845)
Net cash provided by operating activities 1,053,695 3,012,533
CASH FLOWS FROM INVESTING ACTIVITIES:    
Proceeds from the sale of property and equipment 0 2,190
Purchase of available for sale securities (800,000) (4,000,000)
Proceeds from the sale of available for sale securities 1,219,670 2,114,565
Purchases of property and equipment (723,441) (375,087)
Investments in patents (96,009) (79,139)
Net cash used in investing activities (399,780) (2,337,471)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Dividend received by non-controlling interest (200,000) (200,000)
Dividends paid on NTIC common stock (1,183,943) (1,182,200)
Proceeds from employee stock purchase plan 74,334 64,195
Net cash used in financing activities (1,309,609) (1,318,005)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS 133,585 (163,093)
NET DECREASE IN CASH AND CASH EQUIVALENTS (522,109) (806,036)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD 6,403,032 5,856,758
CASH AND CASH EQUIVALENTS AT END OF PERIOD $ 5,880,923 $ 5,050,722