Income Taxes - Additional Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Income Taxes [Abstract]
Net operating loss carry forwards		$ 25,941
Operating loss carryforwards expire dates		2024 to 2032
Alternative minimum tax credit carryforwards		60
Carryforwards utilize limit before the stock offering closed		163
Unutilized operating loss carryforwards that will expire		20,342
Reduced deferred tax assets and valuation allowance		6,916
Additional bad debt deductions provided by Federal income tax laws	2,250
Deferred tax liability not recorded	$ 765
Corporate income tax rate	34.00%
Significant change in unrecognized tax benefits not expected, period	twelve months