10. ACCUMULATED OTHER COMPREHENSIVE INCOME (Tables)

6 Months Ended

Nov. 30, 2017

Equity [Abstract]

Changes in the components of AOCI

    Changes in the components of AOCI, net of tax, were as follows (in thousands):

	Cumulative Translation Adjustments		Unrealized Loss on Investments, Net			Total
Balance at May 31, 2017	$	2,249	$	--		$	2,249
Other comprehensive income (loss) before  reclassifications		60		(3	)		57
Amounts reclassified out of AOCI		--		--			--
Other comprehensive income (loss), net of tax		60		(3	)		57
Balance at November 30, 2017	$	2,309	$	(3	)	$	2,306