Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Taxes
Statutory federal income tax rate (as a percent)			34.00%
Income tax provision at statutory rate	$ 1,303	$ 1,843	$ 4,549	$ 3,739
Increase (decrease) resulting from:
State income taxes, net of federal income tax	(86)	137	122	208
Other	554		850
Valuation allowance		(2,174)		(4,293)
Income tax provision (benefit)	1,771	(194)	5,521	(346)
Unrecognized tax benefits	0		0
Interest or penalties related to tax assessments recognized	$ 0	$ 0	$ 0	$ 0

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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