Shareholders' Equity (Schedule of Ordinary Shares Issuable Under Warrants) (Details) In Thousands, unless otherwise specified	Dec. 31, 2013
Class of Warrant or Right [Line Items]
Class of warrant or right outstanding (in shares)	1,552
Warrants Issued in 2008 in Conjunction with Registered Direct Public Offering [Member]
Class of Warrant or Right [Line Items]
Class of warrant or right outstanding (in shares)	604
Exercise price (in dollars per share)	7.37
Warrants Issued in 2009 in Conjunction with Private Placement [Member]
Class of Warrant or Right [Line Items]
Class of warrant or right outstanding (in shares)	948
Exercise price (in dollars per share)	4.00