Income Taxes	9 Months Ended
Feb. 29, 2016
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 8 Income Taxes At February 29, 2016, the Corporation’s gross deferred tax assets of approximately $49.8 million consist of approximately $34.5 million in federal net operating loss and tax credit carryforwards, $8.0 million in state net operating loss carryforwards and $7.3 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 twelve 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 nine months ended February 29, 2016, the Corporation reported the utilization of previously fully-reserved federal net operating loss carryforwards of $17,000 and state operating loss carryforwards of $97,000 and released corresponding amounts of the valuation allowance to offset federal and state income tax expense.

Income Taxes

9 Months Ended

Feb. 29, 2016

NOTE 8 Income Taxes

At February 29, 2016, the Corporation’s gross deferred tax assets of approximately $49.8 million consist of approximately $34.5 million in federal net operating loss and tax credit carryforwards, $8.0 million in state net operating loss carryforwards and $7.3 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 twelve 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 nine months ended February 29, 2016, the Corporation reported the utilization of previously fully-reserved federal net operating loss carryforwards of $17,000 and state operating loss carryforwards of $97,000 and released corresponding amounts of the valuation allowance to offset federal and state income tax expense.