Stockholders' Equity (Incentive Plans - Narrative) (Details) (USD $)	9 Months Ended		3 Months Ended
	Sep. 30, 2013 Restricted Stock	Sep. 30, 2012 Restricted Stock	Sep. 30, 2013 Employee Stock Purchase Plan	Mar. 31, 2013 Employee Stock Purchase Plan General and Administrative Expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issued restricted common stock to its employees under stock based incentive plan	66,787	103,225
Shares withheld from its officers to pay taxes	9,433	2,417
Option to purchase to common stock			$ 25,000
Discount on market price on the date of grant			85.00%
Discount on market price on the date of exercise			85.00%
Award expiration date			27 months
Share-based compensation expense				$ 300,000