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Business and Significant Accounting Policies - Fair Value of Assets and Liabilities at December 31, 2011 (Details) (USD $)
Dec. 31, 2011
Accounting Policies [Abstract]  
Marketable equity securities Level 1 $ 10,361
Marketable equity securities Level 2   
Marketable equity securities Level 3   
Marketable equity securities Total 10,361
Other current assets - Ely warrants Level 1   
Other current assets - Ely warrants Level 2 74
Other current assets - Ely warrants Level 3   
Other current assets - Ely warrants Total 74
Other current assets - ILC warrants Level 1   
Other current assets - ILC warrants Level 2 4
Other current assets - ILC warrants Level 3   
Other current assets - ILC warrants Total $ 4