Derivative Instruments and Hedging Activity (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2014
Interest Rate Swap Agreement One [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	$ 22,300,000
Derivative, Inception Date	Jul. 01, 2013
Derivative, Maturity Date	May 01, 2019
Description of Interest Rate Cash Flow Hedge Activities	we receive from the counterparty interest on the notional amount based on one-month LIBOR and pay to the counterparty a fixed rate of 1.92%.
Derivative, Amount of Hedged Item			425,000
Interest Rate Swap Agreement Two [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	25,000,000
Derivative, Inception Date	Dec. 06, 2012
Derivative, Maturity Date	Apr. 04, 2018
Description of Interest Rate Cash Flow Hedge Activities	we receive from the counterparty interest on the notional amount based on one-month LIBOR and pay to the counterparty a fixed rate of 0.89%.
Derivative, Amount of Hedged Item			274,000
Interest Rate Swap Agreement Three [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount		35,000,000
Derivative, Inception Date		Oct. 03, 2013
Derivative, Maturity Date		Sep. 29, 2020
Description of Interest Rate Cash Flow Hedge Activities		we receive from the counterparty interest on the notional amount based on one-month LIBOR and pay to the counterparty a fixed rate of 2.20%.
Derivative, Amount of Hedged Item			911,000
Interest Rate Swap Agreement Four [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount			65,000,000
Derivative, Inception Date			Jul. 21, 2014
Derivative, Maturity Date			Jul. 21, 2021
Description of Interest Rate Cash Flow Hedge Activities			we receive from the counterparty interest on the notional amount based on one-month LIBOR and pay to the counterparty a fixed rate of 2.09%.
Derivative, Amount of Hedged Item			$ 1,047,000