DERIVATIVE FINANCIAL INSTRUMENTS - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Derivative [Line Items]
Ineffectiveness included in net income			$ 0		$ 0
Interest expense	$ 2,993,000	$ 2,751,000	5,888,000	$ 5,417,000
Unrealized loss to be reclassified as a reduction of interest expense			0
Designated as Hedging Instrument | Cash Flow Hedging | Interest Rate Swap
Derivative [Line Items]
Notional Amount	$ 5,000,000		5,000,000		$ 5,000,000
Interest expense			$ 395,000	$ 439,000