Income Taxes (Details) (USD $)	3 Months Ended		6 Months Ended
Income Taxes (Details) (USD $)	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Income Taxes [Abstract]
Tax benefit (expense) for continuing operations	$ 474,000	$ (1,445,000)	$ 959,000	$ (1,105,000)
Effective tax rate (in hundredths)	27.80%	36.20%	30.90%	35.40%