Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

Date the declared dividend will be paid, in YYYY-MM-DD format.

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Date the holder must own the stock to be entitled to the dividend, in YYYY-MM-DD format.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Note 18 - Subsequent Events (Details Textual) - USD ($)									3 Months Ended			12 Months Ended
Note 18 - Subsequent Events (Details Textual) - USD ($)	Oct. 20, 2021	Sep. 01, 2021	Aug. 31, 2021	Jul. 21, 2021	Apr. 23, 2021	Jan. 15, 2021	Jan. 22, 2020	Oct. 22, 2019	Nov. 30, 2020	Aug. 31, 2020	May 31, 2020	Aug. 31, 2021	Aug. 31, 2020	Aug. 30, 2021
Common Stock, Dividends, Per Share, Declared (in dollars per share)				$ 0.065	$ 0.065	$ 0.065	$ 0.065	$ 0.065	$ 0	$ 0	$ 0	$ 0.20	$ 0.13
Dividends Payable, Date to be Paid				Aug. 18, 2021	May 19, 2021	Feb. 17, 2021	Feb. 19, 2020	Nov. 20, 2019
Dividends Payable, Date of Record				Aug. 04, 2021	May 05, 2021	Feb. 03, 2021	Feb. 05, 2020	Nov. 06, 2019
Revolving Credit Facility [Member] \| PNC Bank [Member]
Line of Credit Facility, Maximum Borrowing Capacity			$ 5,000,000									$ 5,000,000		$ 3,000,000
Revolving Credit Facility [Member] \| PNC Bank [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate			2.50%
Subsequent Event [Member]
Common Stock, Dividends, Per Share, Declared (in dollars per share)	$ 0.07
Dividends Payable, Date to be Paid	Nov. 17, 2021
Dividends Payable, Date of Record	Nov. 03, 2021
Subsequent Event [Member] \| Acquisition of Remaining Ownership Interest in Harita-NTI Limited [Member]
Business Acquisition, Percentage of Voting Interests Acquired		50.00%
Payments to Acquire Businesses, Gross		$ 6,250,000