2. ACCOUNTS RECEIVABLE (Tables)

12 Months Ended

May. 31, 2015

Receivables [Abstract]

Accounts receivable

     Accounts receivable comprise (in thousands):

	May 31,
	2015			2014
Accounts receivable	$	1,404		$	3,441
Less: Allowance for doubtful accounts		(21	)		(51	)
	$	1,383		$	3,390

			Additions
	Balance at		charged to					Balance
	beginning		costs and					at end
	of year		expenses		Deductions*			of year
Allowance for doubtful
accounts receivable:
May 31, 2015	$	51	$	--	$	(30	)	$	21
May 31, 2014	$	39	$	15	$	(3	)	$	51

*  Deductions include write-offs of uncollectible accounts and collections of amounts previously reserved.