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14. INCOME TAXES (Details) - USD ($)
Jun. 30, 2017
Jun. 30, 2016
Income Tax Disclosure [Abstract]    
Net operating loss carryforwards $ 103,845,000 $ 114,081,000
Research and development tax credits 12,360,000 9,965,000
Basis differences in deferred revenue 14,318,000 0
Basis differences in fixed assets and other 1,510,000 1,491,000
Gross 132,033,000 125,537,000
Valuation allowance (132,033,000) (125,537,000)
Net deferred tax assets $ 0 $ 0