Summary of Significant Accounting Policies (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Significant Accounting Policies [Line Items]
Cost reimbursed to offset research and development expenses		$ 100,000	$ 20,000	$ 1,100,000
Share options granted to employees			205,000	200,948
Unrecognized share-based compensation expense related to unvested awards	1,600,000		1,600,000
Unrecognized share-based compensation expense related to unvested awards expected to be recognized in the period			1 year 10 months 24 days
Anti-dilutive securities excluded from computation of earnings per share	11,600,000	11,500,000	11,600,000	11,500,000
Provision for income taxes	$ (28,804)	$ (22,072)	$ (49,753)	$ (188,610)