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Research and Development	3 Months Ended
Research and Development	May 31, 2018
Research and Development [Abstract]
Research, Development, and Computer Software Disclosure [Text Block]	Research and Development Expenditures for research and development are charged to expense as incurred. Such expenditures amounted to $2,358 for the three months ended May 31, 2018, compared to $2,786 for the three months ended May 31, 2017, net of customer reimbursements, and are included in continuing operations within engineering and technical support expenses on the Unaudited Consolidated Statements of Operations and Comprehensive (Loss) Income.