Stock Based Compensation (Narrative) (Details) (USD $)	3 Months Ended								3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Restricted Stock [Member]	Mar. 31, 2012 Restricted Stock [Member]	Mar. 31, 2013 Stock Options [Member]	Mar. 31, 2013 Long-Term Incentive Plan [Member]	Dec. 31, 2012 Long-Term Incentive Plan [Member]	Apr. 28, 2011 Long-Term Incentive Plan [Member]	Mar. 31, 2013 Minimum [Member] Restricted Stock [Member]	Mar. 31, 2013 Maximum [Member] Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for plan						1,100,000		500,000
Shares avaliable for grant						24,523	675,956
Minimum exercise price per share of stock options as a percentage of grant date fair market value	100.00%
Stock option or stock appreciation term, maximum	10 years
Stock-based compensation expense	$ 218,000	$ 192,000	$ 200,000	$ 200,000
Vesting period									2 years	3 years
Total fair value of vested restricted stock			300,000	400,000
Total unrecognized stock options compensation expense			$ 4,400,000		$ 400,000
Weighted average period of recognition for total unrecognized stock options compensation expense			3 years		3 years