Mortgage Note Payable (Schedule of Mortgage Notes Payable) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011
Debt Instrument [Line Items]
Outstanding Loan Amount	$ 35,758		$ 30,260
Mortgages [Member]
Debt Instrument [Line Items]
Encumbered Properties, in properties	29		28
Outstanding Loan Amount	$ 35,758		$ 30,260
Weighted Average Effective Interest Rate	4.52%	[1]	4.67%	[1]
Weighted Average Maturity Term	3 years 6 months 7 days	[2]	4 years 3 months 26 days	[2]
Minimum [Member] | Mortgages [Member]
Debt Instrument [Line Items]
Effective Interest Rate	3.68%		3.80%
Maximum [Member] | Mortgages [Member]
Debt Instrument [Line Items]
Effective Interest Rate	5.32%		5.32%

[1] (1)Mortgage notes payable have fixed rates. Effective interest rates range from 3.68% to 5.32% at December 31, 2012 and 3.80% to 5.32% at December 31, 2011.

[2] (2)Weighted average remaining years until maturity as of December 31, 2012 and 2011, respectively.