Condensed Consolidated Balance Sheets Parenthetical (USD $)	Mar. 31, 2012	Dec. 31, 2011
Accumulated depreciation	$ 116,166	$ 108,916
Stockholders' Equity:
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	125,000,000	125,000,000
Common stock, shares issued	37,009,602	36,891,712
Common stock, shares outstanding	37,009,602	36,891,712