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Other Assets
 12 Months Ended
May 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Other Assets
NOTE 6 Other Assets

Other assets consist primarily of the cash surrender value of life insurance policies which totaled $6,885,000 and $6,677,000 at May 31, 2016 and 2015, respectively.