Interest Rate Swaps (Interest Rate Swaps) (Details) (USD $)	6 Months Ended
	Jun. 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 2.00% LIBOR Margin)
RX0583-T2 [Member]
Derivative [Line Items]
Notional Amount	3,000,000
Current Effective Interest Rate	6.54% (LIBOR Rate of 4.54% plus2.00% LIBOR Margin)
RX0584-T1 [Member]
Derivative [Line Items]
Notional Amount	$ 21,750,000
Current Effective Interest Rate	5.51% (LIBOR Rate of 3.26% plus2.25% LIBOR Margin)