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Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
Income Taxes - Additional Information (Detail) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Line Items]
U.S. federal statutory income tax rate	35.00%
Net operating loss carryforwards	$ 1,200,000
Valuation allowance	126,000	341,000
Minimum [Member]
Income Taxes [Line Items]
Operating loss carryforwards expiration dates	2023
Maximum [Member]
Income Taxes [Line Items]
Operating loss carryforwards expiration dates	2030
Income Tax Valuation Allowance [Member]
Income Taxes [Line Items]
Income tax attributable to continuing operations	$ 317,000	$ 341,000

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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- Definition

The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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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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