Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details)

v2.4.0.6
Commitments and Contingencies (Details) (USD $)
12 Months Ended
Dec. 31, 2011
Loss Contingencies [Line Items]  
Long-term Purchase Commitment, Amount $ 4,700,000
West Gude [Member]
 
Loss Contingencies [Line Items]  
Letters of Credit Outstanding, Amount $ 815,000