ASSETS AND LIABILITIES MEASURED AT FAIR VALUE ON A RECURRING BASIS (DETAILS) - USD ($) $ in Thousands	May 31, 2016	May 31, 2015
Assets:
Earn-Out Payments	$ 130	$ 376
Total assets at fair value	130	376
Assets:
Earn-Out Payments	0	0
Total assets at fair value	0	0
Assets:
Earn-Out Payments	0	0
Total assets at fair value	0	0
Assets:
Earn-Out Payments	130	376
Total assets at fair value	$ 130	$ 376