PROPERTY AND EQUIPMENT - DEPRECIATION EXPENSE (DETAILS) - USD ($)	3 Months Ended	6 Months Ended
Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2016	Nov. 30, 2015
DEPRECIATION EXPENSE DETAILS
Depreciation expense, including amortization of assets	$ 6,000	$ 11,000	$ 14,000	$ 21,000

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

No definition available.

Name:	fil_DepreciationExpenseIncludingAmortizationOfAssets
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration