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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, 2018
Feb. 28, 2017
Feb. 28, 2018
Feb. 28, 2017
Cash paid for interest $ 5,779 $ 3,470 $ 10,868 $ 8,093
Cash paid for income taxes $ 45,000 $ 45,000