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STOCK-BASED COMPENSATION, Allocation of Recognized Period Costs (Details) (USD $)
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Share-based compensation expense [Abstract]    
Share-based compensation expense included in general and administrative expense $ 19,795us-gaap_AllocatedShareBasedCompensationExpense $ 230,010us-gaap_AllocatedShareBasedCompensationExpense
General and administrative expense [Member]    
Share-based compensation expense [Abstract]    
Share-based compensation expense included in general and administrative expense $ 19,795us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_GeneralAndAdministrativeExpenseMember		 $ 230,010us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_GeneralAndAdministrativeExpenseMember
Earnings per share effect of share-based compensation expense - basic and diluted (in dollars per share) $ 0husa_EarningsPerShareEffectOfShareBasedCompensationExpenseBasicAndDiluted
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_GeneralAndAdministrativeExpenseMember		 $ 0husa_EarningsPerShareEffectOfShareBasedCompensationExpenseBasicAndDiluted
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_GeneralAndAdministrativeExpenseMember