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Note 14 - Supplemental Cash Flow Information - Supplemental Disclosures of Cash Flow Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Feb. 28, 2019
Feb. 28, 2018
Feb. 28, 2019
Feb. 28, 2018
Cash paid for interest $ 3,835 $ 5,779 $ 6,192 $ 10,868
Cash paid for income taxes $ 53,975 $ 45,000 $ 53,975 $ 45,000