7. INCOME TAXES (Details 3) - USD ($) $ in Thousands	May 31, 2017	May 31, 2016
Components of Deferred Tax Assets
Net operating losses	$ 18,719	$ 16,643
Credit carryforwards	4,715	4,430
Inventory reserves	870	1,064
Reserves and accruals	1,566	1,606
Other	393	885
Gross deferred tax assets	26,263	24,628
Less: Valuation allowance	(26,263)	(24,628)
Net deferred tax assets	$ 0	$ 0

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