Interest Rate Swap Derivatives (Detail Textuals) - Interest Rate Swap Derivatives $ in Thousands	6 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)	May 31, 2011 Swap
Derivative [Line Items]
Number of interest rate swaps | Swap				2
Notional amounts of interest rate swap	$ 10,000		$ 10,000
Interest expense on swap transaction	170	$ 185
Pledged with counter party	$ 2,811