Income Taxes	3 Months Ended
Aug. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 8 Income Taxes At August 31, 2016, the Corporation’s gross deferred tax assets of approximately $48.7 million consist of approximately $32.0 million in federal net operating loss and tax credit carryforwards, $7.7 million in state net operating loss carryforwards and $9.0 million resulting from temporary differences between financial and tax reporting. The federal net operating loss and tax credit carryforwards have a life expectancy of between eleven and twenty years. The state net operating loss carryforwards have a life expectancy, depending on the state where a loss was incurred, between one and twenty years. The Corporation has recorded a full valuation allowance against this asset. If the Corporation, after considering future negative and positive evidence regarding the realization of deferred tax assets, determines that a lesser valuation allowance is warranted, it would record a reduction to income tax expense and the valuation allowance in the period of determination. For the three months ended August 31, 2016, the Corporation utilized previously fully-reserved federal net operating loss carryforwards of $345,000 and state operating loss carryforwards of $63,000 and released corresponding amounts of the valuation allowance to offset federal and state income tax expense.

Income Taxes

3 Months Ended

Aug. 31, 2016

NOTE 8 Income Taxes

At August 31, 2016, the Corporation’s gross deferred tax assets of approximately $48.7 million consist of approximately $32.0 million in federal net operating loss and tax credit carryforwards, $7.7 million in state net operating loss carryforwards and $9.0 million resulting from temporary differences between financial and tax reporting. The federal net operating loss and tax credit carryforwards have a life expectancy of between eleven and twenty years. The state net operating loss carryforwards have a life expectancy, depending on the state where a loss was incurred, between one and twenty years. The Corporation has recorded a full valuation allowance against this asset. If the Corporation, after considering future negative and positive evidence regarding the realization of deferred tax assets, determines that a lesser valuation allowance is warranted, it would record a reduction to income tax expense and the valuation allowance in the period of determination.

For the three months ended August 31, 2016, the Corporation utilized previously fully-reserved federal net operating loss carryforwards of $345,000 and state operating loss carryforwards of $63,000 and released corresponding amounts of the valuation allowance to offset federal and state income tax expense.