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Convertible Bond Payable - Related Party (Details) (USD $)
 0 Months Ended 12 Months Ended
Dec. 16, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 01, 2011
Convertible Bond Payable - Related Party [Abstract]          
Convertible bonds, amount borrowed $ 1,500,000us-gaap_DebtInstrumentFaceAmount       $ 1,500,000us-gaap_DebtInstrumentFaceAmount
Convertible bonds, stated percentage         6.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
Convertible bonds and related accrued interest, intial rate of conversion into common shares         $ 9.58us-gaap_DebtInstrumentConvertibleConversionPrice1
Convertible bonds, after conversion estimated fairvalue   1,003,557us-gaap_DebtInstrumentConvertibleBeneficialConversionFeature      
Interest expense for the accertion of discount on note     502,465us-gaap_InterestExpenseCommercialPaper 461,279us-gaap_InterestExpenseCommercialPaper  
Accrued interest 179,612us-gaap_InterestReceivable        
Derivative liability $ 673,736us-gaap_DerivativeLiabilities        
Common stock exchanged during period of conversion 261,665pmhs_CommonStockExchangedDuringPeriodOfConversionOfDebt        
Bond, related accrued interest and derivative liability, converted into shares 174,578us-gaap_DebtConversionConvertedInstrumentSharesIssued1        
Convertible bonds, conversion description   The assumptions used to determine the initial fair value of the conversion feature of the convertible bond were expected volatility of 65%, expected life of two years to twelve months, risk free interest rates of .41%, and no dividend yield.      
Expected dividend yield rate           
Expected volatility rate   65.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate      
Risk free interest rate   0.41%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate      
Expected term   2 years