Interest Rate Swaps (Interest Rate Swaps) (Details) (USD $)	9 Months Ended
	Sep. 30, 2012
RX0583-T1 [Member]
Derivative [Line Items]
Notional Amount	$ 11,250,000
Current Effective Interest Rate	5.26% (LIBOR Rate of 3.26% plus 2.xx% LIBOR Margin)	[1]
RX0583-T2 [Member]
Derivative [Line Items]
Notional Amount	3,000,000
Current Effective Interest Rate	6.54% (LIBOR Rate of 4.54% plus 2.00% LIBOR Margin)	[1]
RX0584-T1 [Member]
Derivative [Line Items]
Notional Amount	$ 21,750,000
Current Effective Interest Rate	5.51% (LIBOR Rate of 3.26% plus 2.25% LIBOR Margin)	[1]

[1] (1) As described in Note 4 - "Secured Credit Facility," each note initially bears interest at a LIBOR rate determined by the maturity of the note, plus a "LIBOR Margin" rate equal to either 2.00% or 2.25% according to the individual secured credit facility. The LIBOR Margin decreases as the borrower's "Leverage Ratio" decreases. The "Current Effective Interest Rate" in the table reflects the rate we pay giving effect to the swaps.