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INCENTIVE STOCK PLANS (Details 2)
6 Months Ended 12 Months Ended
Mar. 31, 2014
Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Expected term 5 years  
Expected average volatility 0.46%us-gaap_FairValueAssumptionsWeightedAverageVolatilityRate  
Expected dividend yield 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate
Risk-free interest rate 1.49%us-gaap_FairValueAssumptionsRiskFreeInterestRate  
Expected annual forfeiture rate 0.00%drop_ExpectedAnnualForfeitureRate 0.00%drop_ExpectedAnnualForfeitureRate