1. ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	May 31, 2019	May 31, 2018	May 31, 2017	May 31, 2016
Cash and cash equivalents	$ 5,428	$ 16,848	$ 17,803	$ 939
System software development costs were capitalized or amortized	$ 0	$ 0	$ 0
North America | Accounts Receivable
Concentration risk	49.00%	55.00%
Asia | Accounts Receivable
Concentration risk	25.00%	45.00%
Europe | Accounts Receivable
Concentration risk	26.00%	0.00%
Customer One | Accounts Receivable
Concentration risk	44.00%	38.00%
Customer One | Net Sales
Concentration risk	36.00%	34.00%
Customer Two | Accounts Receivable
Concentration risk	25.00%	32.00%
Customer Two | Net Sales
Concentration risk	14.00%	26.00%
Customer Three | Accounts Receivable
Concentration risk	21.00%	11.00%
Customer Three | Net Sales
Concentration risk	12.00%	13.00%
Customer Four | Net Sales
Concentration risk	10.00%