Annual report pursuant to Section 13 and 15(d)

Interest Rate Hedge Swaps (Details Textual)

v2.4.1.9
Interest Rate Hedge Swaps (Details Textual) (USD $)
 12 Months Ended 1 Months Ended 12 Months Ended
Jun. 30, 2014
Dec. 31, 2012
Dec. 31, 2014
Dec. 31, 2013
Derivative Instruments, Gain (Loss) [Line Items]        
Amounts reported in OCI related to derivative hedgest to be reclassed into interest expense $ 209,000corr_AmountsreportedinOCIrelatedtoderivativehedgesttobereclassedintointerestexpense      
Not Designated as Hedging Instrument [Member] | Interest rate contract [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain recognized in earnings   317,000us-gaap_DerivativeGainLossOnDerivativeNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember 		0us-gaap_DerivativeGainLossOnDerivativeNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember 		75,000us-gaap_DerivativeGainLossOnDerivativeNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
Fair Value, Measurements, Recurring [Member] | Not Designated as Hedging Instrument [Member] | Interest rate contract [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain recognized in earnings   $ 680,968us-gaap_DerivativeGainLossOnDerivativeNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember