| Short-term Investments (Notes) | 9 Months Ended | 
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| Dec. 31, 2018 | |
| Investments, Debt and Equity Securities [Abstract] | |
| Short Term Investments [Text Block] | 
Short-term Investments
 
As of March 31, 2018, the Company owned Certificates of Deposit amounting to $2.8 million, held at cost. 
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- References No definition available. 
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- Definition Short-term investments. No definition available. 
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