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Related Party Transactions	9 Months Ended
Related Party Transactions	Jan. 31, 2018
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Related party transactions include transactions between the Company and its shareholders, management, or affiliates. The following transactions were in the normal course of operations and were measured and recorded at the exchange amount, which is the amount of consideration established and agreed to by the parties. Consulting Services During the nine months ended January 31, 2018 and 2017, the Company paid a member of its Board of Directors $54,000 and $54,000, respectively, for consulting services unrelated to his duties as a board member. During the nine months ended January 31, 2018 and 2017, the Company paid an affiliate of a board member $73,000 and $22,000, respectively, for consulting services unrelated to their duties as board members. As of January 31, 2018, no amounts were due to these related parties.