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
Mar. 31, 2014
Mar. 31, 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    
Fair value of derivative liabilities 500,000   600,000      
Recognized gain 100,000          
Recognized losses less than amount   $ 100,000