Income Taxes (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Income Taxes
Income tax expense	$ 58,000	$ 563,000
Income tax rate, percentage	33.50%	57.30%
Decrease in effective tax rate as result of tax benefit of disqualifying disposition of stock options	7.20%
Unrecognized tax benefits	458,000		458,000
Unrecognized tax benefits, if recognized, that would affect the effective income tax rates of future periods	$ 458,000