Income Tax Expense Benefit (Detail) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Components Of Income Tax Expense Benefit [Line Items]
Federal
State
Current Income Tax Expense (Benefit), Total
Increase in valuation allowance			(1,480,000)		(1,260,000)
Benefit of operating loss carry forward			1,480,000		1,260,000
Provision for income taxes, net