Summary of Significant Accounting Policies Venezuelan Foreign Currency Translation (Details) (USD $)	Mar. 31, 2014
Venezuelan BsF net monetary assets at CENCOEX rate	$ 70,000,000
Foreign exchange rate - Bolivar [Member]
Official currency exchange rate in Venezuela	6.3
Foreign exchange rate - SICAD 1 [Member]
SICAD 1 Venezuelan foreign currency exchange rate	10.7
Foreign exchange rate - SICAD 2 [Member]
SICAD 2 Venezuelan foreign currency exchange rate	$ 50.85