Condensed Consolidated Statement of Shareholders' Equity - USD ($) $ in Thousands		Total	Convertible Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Earnings [Member]
Balance at Aug. 31, 2017	[1]	$ 34,832	$ 1	$ 49	$ 12,378	$ 747	$ 21,657
Balance (in Shares) at Aug. 31, 2017	[1]		36,000	4,861,590
Preferred dividends		(19)	$ 0	$ 0	0	0	(19)
Foreign translation gain		148	0	0	0	148	0
Net income		1,195	0	0	0	0	1,195
Balance at Nov. 30, 2017		36,156	$ 1	$ 49	12,378	895	22,833
Balance (in Shares) at Nov. 30, 2017			36,000	4,861,590
Balance at Aug. 31, 2017	[1]	34,832	$ 1	$ 49	12,378	747	21,657
Balance (in Shares) at Aug. 31, 2017	[1]		36,000	4,861,590
Foreign translation gain		160
Net income		4,767
Balance at May. 31, 2018		39,702	$ 1	$ 49	12,378	907	26,367
Balance (in Shares) at May. 31, 2018			36,000	4,861,590
Balance at Nov. 30, 2017		36,156	$ 1	$ 49	12,378	895	22,833
Balance (in Shares) at Nov. 30, 2017			36,000	4,861,590
Preferred dividends		(19)	$ 0	$ 0	0	0	(19)
Foreign translation gain		(81)	0	0	0	(81)	0
Net income		1,319	0	0	0	0	1,319
Balance at Feb. 28, 2018		37,375	$ 1	$ 49	12,378	814	24,133
Balance (in Shares) at Feb. 28, 2018			36,000	4,861,590
Preferred dividends		(19)	$ 0	$ 0	0	0	(19)
Foreign translation gain		93	0	0	0	93	0
Net income		2,253	0	0	0	0	2,253
Balance at May. 31, 2018		39,702	$ 1	$ 49	12,378	907	26,367
Balance (in Shares) at May. 31, 2018			36,000	4,861,590
Balance at Aug. 31, 2018	[1]	41,886	$ 1	$ 49	12,378	928	28,530
Balance (in Shares) at Aug. 31, 2018	[1]		36,000	4,861,590
Preferred dividends		(19)	$ 0	$ 0	0	0	(19)
Foreign translation gain		158	0	0	0	158	0
Net income		1,925	0	0	0	0	1,925
Balance at Nov. 30, 2018		43,950	$ 1	$ 49	12,378	1,086	30,436
Balance (in Shares) at Nov. 30, 2018			36,000	4,861,590
Balance at Aug. 31, 2018	[1]	41,886	$ 1	$ 49	12,378	928	28,530
Balance (in Shares) at Aug. 31, 2018	[1]		36,000	4,861,590
Foreign translation gain		(38)
Net income		6,830
Balance at May. 31, 2019		48,621	$ 1	$ 49	12,378	890	35,303
Balance (in Shares) at May. 31, 2019			36,000	4,861,590
Balance at Nov. 30, 2018		43,950	$ 1	$ 49	12,378	1,086	30,436
Balance (in Shares) at Nov. 30, 2018			36,000	4,861,590
Preferred dividends		(19)	$ 0	$ 0	0	0	(19)
Foreign translation gain		119	0	0	0	119	0
Net income		1,961	0	0	0	0	1,961
Balance at Feb. 28, 2019		46,011	$ 1	$ 49	12,378	1,205	32,378
Balance (in Shares) at Feb. 28, 2019			36,000	4,861,590
Preferred dividends		(19)	$ 0	$ 0	0	0	(19)
Foreign translation gain		(315)	0	0	0	(315)	0
Net income		2,944	0	0	0	0	2,944
Balance at May. 31, 2019		$ 48,621	$ 1	$ 49	$ 12,378	$ 890	$ 35,303
Balance (in Shares) at May. 31, 2019			36,000	4,861,590

[1] Derived from the Company’s audited financial statements included in its Form 10-K for the years ended August 31, 2018 and 2017 as filed with the U. S. Securities and Exchange Commission on November 28, 2018 and 2017, respectively.