Other Balance Sheet Items (Details Textual) (USD $)	1 Months Ended
	Jun. 30, 2012	Dec. 31, 2012
Other Balance Sheet Items (Textual) [Abstract]
Escrowed funds	$ 5,700,000
Escrowed funds to be released		564,000
Net claims for escrow funds	219,000
Amount paid to RBC	$ 4,400,000