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Concentrations and Credit Risk (Narrative) (Details) | 6 Months Ended
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Sep. 30, 2015
Concentrations And Credit Risk 1 | 10.00%
Concentrations And Credit Risk 2 | 10.00%
Concentrations And Credit Risk 3 | 10.00%
Concentrations And Credit Risk 4 | 10.00%
Concentrations And Credit Risk 5 | 10.00%

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