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Income Taxes (Details 1)	3 Months Ended		6 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Jun. 30, 2012	Jun. 30, 2011
Reconciles the statutory federal income tax rate to the Company' s effective tax rate
Statutory federal income tax rate	35.00%	35.00%	35.00%	35.00%
Increases resulting from:
Disallowed meals & entertainment	0.20%	0.10%	0.20%	0.10%
Disallowed compensation	1.00%	2.00%	0.70%	1.20%
State income tax, net of federal tax benefit	3.60%	3.60%	3.60%	3.60%
Other, net	0.30%	1.80%	0.10%	0.80%
Effective tax rate	40.10%	42.50%	39.60%	40.70%

X

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

+ References

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X

- 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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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to nondeductible meals and entertainment expenses under enacted tax laws.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to differences in the deductibility or nondeductibility of incentive stock options and other equity-based compensation costs in accordance with generally accepted accounting principles and enacted tax laws.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to all other items not otherwise listed in the existing taxonomy.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the state and local income tax expense or benefit, net of the federal tax benefit (expense) thereon, recorded during the period.

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