NOTES PAYABLE AND LONG-TERM DEBT (Short-Term Debt) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Short-term Debt [Line Items]
Short-term notes payable and current portion of long-term debt	$ 2,200	$ 2,200
Notes Payable to Banks | Unsecured Debt
Short-term Debt [Line Items]
Short-term notes payable and current portion of long-term debt	$ 2,200	$ 2,200
Interest rate description	WSJ
Basis spread on variable rate	0.50%