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BALANCE SHEETS BALANCE SHEETS Parenthetical (USD $)
Mar. 31, 2015
Dec. 31, 2014
Common stock, par value per share $ 0.01us-gaap_CommonStockParOrStatedValuePerShare $ 0.01us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 250,000,000us-gaap_CommonStockSharesAuthorized 250,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 52,590,112us-gaap_CommonStockSharesIssued 52,083,859us-gaap_CommonStockSharesIssued
Common stock, shares outstanding 52,590,112us-gaap_CommonStockSharesOutstanding 52,083,859us-gaap_CommonStockSharesOutstanding