13. STOCK-BASED COMPENSATION (Details 3) - Outstanding Options Stock Option Transactions - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Feb. 29, 2020	Nov. 30, 2019	Aug. 31, 2019
Options outstanding, beginning (in thousands)	3,127	3,434	3,107
Options granted (in thousands)	6	58	527
Options cancelled (in thousands)	(11)	(280)	(151)
Options exercised (in thousand)	(98)	(85)	(49)
Options outstanding, ending (in thousands)	3,024	3,127	3,434
Weighted average exercise price outstanding, beginning	$ 2.18	$ 2.16	$ 2.20
Weighted average exercise price granted	2.30	1.77	1.64
Weighted average exercise price cancelled	2.42	2.19	1.50
Weighted average exercise price exercised	1.34	1.06	1.27
Weighted average exercise price outstanding, ending	$ 2.21	$ 2.18	$ 2.16
Aggregate intrinsic value, beginning balance	$ 358	$ 41	$ 282
Aggregate intrinsic value, ending balance	$ 544	$ 358	$ 41
Options fully vested and expected to vest, ending (in thousands)	2,989
Weighted average exercise price for options fully vested and expected to vest, ending	$ 2.21
Aggregate intrinsic value for options fully vested and expected to vest, ending	$ 536