SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details - Fair value measurements) - Fair value, recurring - USD ($) $ in Thousands	Aug. 31, 2022	Aug. 31, 2021
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Assets, fair value disclosure	$ 51,567	$ 36,984
Short-term investments
Defined Benefit Plan Disclosure [Line Items]
Assets, fair value disclosure	76,668	86,620
Acquisition-related contingent consideration obligations
Defined Benefit Plan Disclosure [Line Items]
Acquisition-related contingent consideration obligations	0	3,217
Level 1 | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Assets, fair value disclosure	51,567	36,984
Level 1 | Short-term investments
Defined Benefit Plan Disclosure [Line Items]
Assets, fair value disclosure	76,668	86,620
Level 1 | Acquisition-related contingent consideration obligations
Defined Benefit Plan Disclosure [Line Items]
Acquisition-related contingent consideration obligations		0
Level 2 | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Assets, fair value disclosure	0	0
Level 2 | Short-term investments
Defined Benefit Plan Disclosure [Line Items]
Assets, fair value disclosure	0	0
Level 2 | Acquisition-related contingent consideration obligations
Defined Benefit Plan Disclosure [Line Items]
Acquisition-related contingent consideration obligations		0
Level 3 | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Assets, fair value disclosure	0	0
Level 3 | Short-term investments
Defined Benefit Plan Disclosure [Line Items]
Assets, fair value disclosure	$ 0	0
Level 3 | Acquisition-related contingent consideration obligations
Defined Benefit Plan Disclosure [Line Items]
Acquisition-related contingent consideration obligations		$ 3,217