OTHER FINANCIAL INFORMATION (SELF INSURANCE LIABILITIES TABLE) (DETAILS) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
OTHER FINANCIAL INFORMATION [ABSTRACT]
Worker's compensation	$ 2,320	$ 2,007
Employee health and dental insurance	4,429	4,769
Other insurance	1,202	1,068
Total self insurance liabilities	$ 7,951	$ 7,844