Goodwill and Other Intangible (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Goodwill and Other Intangible (Textual) [Abstract]
Amortization of Acquired Intangible Assets	$ 108	$ 73	$ 150
Goodwill and Other Intangible (Additional Textual) [Abstract]
Amortization expenses of intangible assets, 2013	105
Amortization expenses of intangible assets, 2014	101
Amortization expenses of intangible assets, 2015	101
Amortization expenses of intangible assets, 2016	94
Amortization expenses of intangible assets, 2017	92
Amortization expenses of intangible assets, After 2017	568
Weighted Average [Member]
Goodwill and Other Intangible (Textual) [Abstract]
Weighted average useful life of intangible assets	7 years
Off-Market Favorable Lease [Member]
Goodwill and Other Intangible (Textual) [Abstract]
Amortization of Acquired Intangible Assets			$ 489