Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Convertible Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income [Member]	Retained Earnings	Total
Balance at the beginning at Aug. 31, 2019	$ 1	$ 49	$ 12,378	$ 876	$ 37,886	$ 51,190
Balance at the beginning (in Shares) at Aug. 31, 2019	36,000	4,861,590
Preferred dividends	$ 0	$ 0	0	0	(76)	(76)
Foreign translation loss	0	0	0	(88)	0	(88)
Net income	0	0	0	0	7,793	7,793
Balance at the end at Aug. 31, 2020	$ 1	$ 49	12,378	788	45,603	58,819
Balance at the end (in Shares) at Aug. 31, 2020	36,000	4,861,590
Preferred dividends	$ 0	$ 0	0	0	(76)	(76)
Foreign translation loss	0	0	0	(8)	0	(8)
Net income	0	0	0	0	8,387	8,387
Balance at the end at Aug. 31, 2021	$ 1	$ 49	$ 12,378	$ 780	$ 53,914	$ 67,122
Balance at the end (in Shares) at Aug. 31, 2021	36,000	4,861,590