Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]

The following table summarizes the notional amounts of the Company's outstanding interest rate swap and cap agreements as of June 30, 2017:

	Notional Amount
Interest rate swap contracts	$	20,000
Interest rate cap contracts	$	20,000