11. LONG-TERM DEBT AND LINE OF CREDIT (Details) - USD ($) $ in Thousands	Nov. 30, 2015	May. 31, 2015
Long-term Debt And Line Of Credit Tables
Principal	$ 4,110	$ 4,110
Unamortized debt issuance costs	(237)	(319)
Long-term debt	$ 3,873	$ 3,791	[1]

[1] The condensed consolidated balance sheet at May 31, 2015 has been derived from the audited consolidated financial statements at that date.