Summary of Significant Accounting Policies (Details Textual)	12 Months Ended
	Dec. 31, 2012
Common Stock Dividend Rate Percentage	10.00%
Cost Method Investment, Ownership Percentage	20.00%
Building [Member]
Property, Plant and Equipment, Useful Life	40 years
Leaseholds and Leasehold Improvements [Member]
Property, Plant and Equipment, Useful Life	10 years
Property, Plant and Equipment, Other Types [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life	3 years
Property, Plant and Equipment, Other Types [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life	7 years