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Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v2.4.1.9
Subsequent Events (Details) (USD $)
0 Months Ended
Feb. 20, 2015
Jan. 31, 2015
Apr. 30, 2014
Feb. 26, 2015
Jan. 31, 2014
Subsequent Event [Line Items]          
Line of credit   $ 243,989us-gaap_LineOfCredit $ 244,175us-gaap_LineOfCredit    
Letter of Credit [Member]          
Subsequent Event [Line Items]          
Line of credit       2,244,971us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_LetterOfCreditMember
1,696,445us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_LetterOfCreditMember
Line of Credit Facility, Remaining Borrowing Capacity       1,122,485us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_LetterOfCreditMember
848,225us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_LetterOfCreditMember
Subsequent Event [Member]          
Subsequent Event [Line Items]          
Damages sought against HEMG $ 772,793us-gaap_LossContingencyDamagesSoughtValue
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember