Income Taxes (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended					12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Minimum distribution requirement of its real estate investment trust taxable income to its shareholders (in hundredths)						90.00%
Net operating losses (income)						$ 56,630	$ 46,180	$ 32,914
Total income tax expense	(3,318)	(2,375)	1,222	(1,129)	(3,355)	(5,600)	(3,355)
Valuation allowance	804				804	804	804
Tax Credits						280
Federal [Member]
Segment Reporting Information [Line Items]
Net operating loss carryforwards	21,798					21,798
State [Member]
Segment Reporting Information [Line Items]
Net operating loss carryforwards	$ 22,210					$ 22,210