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Income Taxes - Additional Information (Detail) (USD $)
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12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Income Taxes [Line Items] | |||
| Valuation allowance | $ 415,453 | $ 621,528 | |
| Valuation allowance, deferred tax asset, change in amount | 206,075 | ||
| Federal statutory rate | 35.00% | 35.00% | 35.00% |
| Effective income tax rates, income taxes attributable to the discontinued operations | 41.30% | 36.70% | 39.30% |
| Uncertain tax positions | 0 | 0 | 29,000 |
| Year for audit of federal and state tax return by revenue service | 2007 | ||
| Accrued interest and penalties for uncertain tax positions | 0 | 0 | 0 |
| Income tax refunds | 177,500 | ||
| Income tax paid | 1,645,939 | 335,467 | |
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Charitable Contributions [Member]
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| Income Taxes [Line Items] | |||
| Valuation allowance | 0 | ||
| Valuation allowance, deferred tax asset, change in amount | $ 14,175 | ||