SIGNIFICANT ACCOUNTING POLICIES - Intellectual Property (Detail) - Intellectual property - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2022	May 31, 2021	Aug. 31, 2021
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Acquisition Value	$ 16,985		$ 16,985		$ 16,985
Accumulated Amortization	7,585		7,585		6,516
Net Book Value	9,400		9,400		$ 10,469
Amortization of intangible assets	354	$ 358	$ 1,100	$ 1,100
Royalty Agreement buy out-Enslein Research
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Amortization Period			10 years		10 years
Acquisition Value	75		$ 75		$ 75
Accumulated Amortization	75		75		71
Net Book Value	0		$ 0		$ 4
Termination/nonassertion agreement-TSRL Inc.
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Amortization Period			10 years		10 years
Acquisition Value	6,000		$ 6,000		$ 6,000
Accumulated Amortization	4,825		4,825		4,375
Net Book Value	1,175		$ 1,175		$ 1,625
Developed technologies–DILIsym acquisition
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Amortization Period			9 years		9 years
Acquisition Value	2,850		$ 2,850		$ 2,850
Accumulated Amortization	1,583		1,583		1,346
Net Book Value	1,267		$ 1,267		$ 1,504
Intellectual rights of Entelos Holding Corp.
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Amortization Period			10 years		10 years
Acquisition Value	50		$ 50		$ 50
Accumulated Amortization	19		19		15
Net Book Value	31		$ 31		$ 35
Developed technologies–Lixoft acquisition
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Amortization Period			16 years		16 years
Acquisition Value	8,010		$ 8,010		$ 8,010
Accumulated Amortization	1,083		1,083		709
Net Book Value	$ 6,927		$ 6,927		$ 7,301