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Income Tax Reconciliation (Detail) (USD $)	6 Months Ended		12 Months Ended
Income Tax Reconciliation (Detail) (USD $)	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011	Dec. 31, 2010
Reconciliation of Provision of Income Taxes [Line Items]
Income tax benefit (expense) at the statutory rate			$ (168,000)	$ 290,000
Benefit (expense) resulting from:
Increase in Federal valuation allowance				(290,000)
Utilization of net operating loss carryforwards			168,000
Income tax benefit (expense)

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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- Definition

The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to changes in the valuation allowance for deferred tax assets in the period.

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- Definition

The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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