Annual report pursuant to Section 13 and 15(d)

Interest Rate Hedge Swaps (Details 3)

v3.3.1.900
Interest Rate Hedge Swaps (Details 3) - Not Designated as Hedging Instrument [Member]
 3 Months Ended 12 Months Ended
Dec. 31, 2015
USD ($)
Instrument
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Interest Rate Swap [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative, Number of Instruments Held | Instrument 2    
Derivative, Notional Amount $ 52,500,000    
Derivative, Forward Interest Rate 0.865%    
Interest rate contract [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Interest Expense $ 0 $ 0 $ 75,000