Stockholders' Equity (Details 1)	1 Months Ended		3 Months Ended	12 Months Ended
	Jan. 31, 2013	Mar. 31, 2013	Mar. 31, 2013 Common Stock [Member]	Dec. 31, 2012 Common Stock [Member]
Reconciliation of the beginning and ending common stock outstanding
Balance, beginning of period	87,514,000	89,217,000	87,514,336	77,843,883
Issuance of common stock	1,599,271		1,642,318	9,275,895
Restricted stock-based awards, net of forfeitures			60,726	394,558
Balance, end of period		89,217,000	89,217,380	87,514,336