Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments (Narrative) (Details)

v2.4.0.8
Derivative Instruments (Narrative) (Details) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Dec. 31, 2011
Interest Rate Swap [Member]
interest_rate_derivative_held
Dec. 31, 2011
Interest Rate Swap Agreement 1 [Member]
Interest Rate Swap [Member]
Dec. 31, 2011
Interest Rate Swap Agreement 2 [Member]
Interest Rate Swap [Member]
Derivative [Line Items]                
Number of interest rate swaps held           2    
Fixed interest rate             1.67% 1.83%
Notional amount of interest rate derivatives           $ 31,800,000    
Derivative Liability 400,000   400,000   600,000      
Recognized gain 100,000 100,000 200,000 300,000        
Derivative Loss $ 100,000   $ 100,000