1. ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - PROPERTY AND EQUIPMENT (Details)	12 Months Ended
	May 31, 2014
Furniture and fixtures | Minimum
Useful life	2 years
Furniture and fixtures | Maximum
Useful life	6 years
Machinery and equipment | Minimum
Useful life	3 years
Machinery and equipment | Maximum
Useful life	6 years
Test equipment | Minimum
Useful life	4 years
Test equipment | Maximum
Useful life	6 years