Warrants (Details Textual) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Warrants Classified as Derivative Liability	4,150,000		4,150,000
Increase (Decrease) in Derivative Liabilities	$ (246)	$ 0	$ (246)	$ 0
Warrants [Member]
Increase (Decrease) in Derivative Liabilities	$ 300

The increase (decrease) during the period in the carrying value of derivative instruments reported as liabilities that are due to be disposed of within one year (or the normal operating cycle, if longer).

No definition available.

Name:	us-gaap_IncreaseDecreaseInDerivativeLiabilities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration