Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes [Abstract]
Operating loss carryforwards	$ 4,300,000
Unrecognized tax benefits resulting in net operating loss carryforward	269,000
Effective income tax rate reconciliation, at federal statutory income tax rate	35.00%
Tax benefits related to interest and penalties	1,000	68,000	156,000
Liabilities for interest and penalties	258,000	268,000
Unrecognized tax benefits	1,584,000	1,613,000	2,714,000
Unrecognized tax benefits impact the effective tax rate	$ 1,000,000	$ 1,100,000