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(4) Acquisition: Summary of fair value of assets acquired and liabilities assumed (Details) (TexadianEnergyIncMember, USD $)
Dec. 31, 2012
TexadianEnergyIncMember
 
Intangible assets $ 8,809
Goodwill 7,756
Net non cash working capital 3,631
Deferred tax liabilities (2,757)
Total, net of cash acquired $ 17,439