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Property Plant and Equipment (Details Narrative) (USD $)	12 Months Ended
	Dec. 31, 2012
Notes to Financial Statements
Impairment loss	$ 106,000

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- Definition

Custom Element.

+ References

No definition available.

+ Details

Name:	MSTG_ImpairmentLoss
Namespace Prefix:	MSTG_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- Details

Name:	MSTG_NotesToFinancialStatementsAbstract
Namespace Prefix:	MSTG_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration