Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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-Publisher FASB
-Name Accounting Standards Codification
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Period Type:	duration

Note 12 - Stock Repurchase Program (Details Textual) - Common Stock [Member] - USD ($)	1 Months Ended	12 Months Ended
	Sep. 30, 2019	Aug. 31, 2018	Aug. 31, 2019
Share Repurchase Program 2019 [Member]
Stock Repurchase Program, Authorized Amount			$ 25,000,000
Stock Repurchased and Retired During Period, Shares	0
Share Repurchase Program 2017 [Member]
Stock Repurchased and Retired During Period, Shares		10,396
Stock Repurchased and Retired During Period, Value		$ 872,000