EMPLOYEE BENEFITS (Details 5) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Pension Benefits
Employee benefits
Total plan assets	$ 24,562	$ 23,887	$ 21,828
Carrying Amount | Recurring basis
Employee benefits
Total plan assets	24,562	23,887
Quoted Prices In Active Markets for Identical Assets (Level 1) | Recurring basis
Employee benefits
Total plan assets	17,385	14,877
Significant Other Observable Inputs (Level 2) | Recurring basis
Employee benefits
Total plan assets	7,177	9,011
Cash Equivalents | Carrying Amount | Recurring basis
Employee benefits
Total plan assets	1,150	979
Cash Equivalents | Quoted Prices In Active Markets for Identical Assets (Level 1) | Recurring basis
Employee benefits
Total plan assets	1,129	15
Cash Equivalents | Significant Other Observable Inputs (Level 2) | Recurring basis
Employee benefits
Total plan assets	21	964
Cash | Carrying Amount | Recurring basis
Employee benefits
Total plan assets	1,129	15
Cash | Quoted Prices In Active Markets for Identical Assets (Level 1) | Recurring basis
Employee benefits
Total plan assets	$ 1,129	$ 15
Cash | Significant Other Observable Inputs (Level 2) | Recurring basis
Employee benefits
Total plan assets
Short term investment funds | Carrying Amount | Recurring basis
Employee benefits
Total plan assets	$ 21	$ 964
Short term investment funds | Quoted Prices In Active Markets for Identical Assets (Level 1) | Recurring basis
Employee benefits
Total plan assets
Short term investment funds | Significant Other Observable Inputs (Level 2) | Recurring basis
Employee benefits
Total plan assets	$ 21	$ 964
Equity Securities | Carrying Amount | Recurring basis
Employee benefits
Total plan assets	15,272	14,861
Equity Securities | Quoted Prices In Active Markets for Identical Assets (Level 1) | Recurring basis
Employee benefits
Total plan assets	$ 15,272	$ 14,862
Equity Securities | Significant Other Observable Inputs (Level 2) | Recurring basis
Employee benefits
Total plan assets
U.S. Large cap | Carrying Amount | Recurring basis
Employee benefits
Total plan assets	$ 7,472	$ 9,918
U.S. Large cap | Quoted Prices In Active Markets for Identical Assets (Level 1) | Recurring basis
Employee benefits
Total plan assets	$ 7,472	$ 9,919
U.S. Large cap | Significant Other Observable Inputs (Level 2) | Recurring basis
Employee benefits
Total plan assets
U.S. Mid cap/small cap | Carrying Amount | Recurring basis
Employee benefits
Total plan assets	$ 2,259
U.S. Mid cap/small cap | Quoted Prices In Active Markets for Identical Assets (Level 1) | Recurring basis
Employee benefits
Total plan assets	$ 2,259
U.S. Mid cap/small cap | Significant Other Observable Inputs (Level 2) | Recurring basis
Employee benefits
Total plan assets
U.S. Mid cap | Carrying Amount | Recurring basis
Employee benefits
Total plan assets		$ 800
U.S. Mid cap | Quoted Prices In Active Markets for Identical Assets (Level 1) | Recurring basis
Employee benefits
Total plan assets		$ 800
U.S. Mid cap | Significant Other Observable Inputs (Level 2) | Recurring basis
Employee benefits
Total plan assets
U.S. Small cap | Carrying Amount | Recurring basis
Employee benefits
Total plan assets		$ 782
U.S. Small cap | Quoted Prices In Active Markets for Identical Assets (Level 1) | Recurring basis
Employee benefits
Total plan assets		$ 782
U.S. Small cap | Significant Other Observable Inputs (Level 2) | Recurring basis
Employee benefits
Total plan assets
Equity blend | Carrying Amount | Recurring basis
Employee benefits
Total plan assets	$ 1,151
Equity blend | Quoted Prices In Active Markets for Identical Assets (Level 1) | Recurring basis
Employee benefits
Total plan assets	$ 1,151
Equity blend | Significant Other Observable Inputs (Level 2) | Recurring basis
Employee benefits
Total plan assets
International | Carrying Amount | Recurring basis
Employee benefits
Total plan assets	$ 4,390	$ 3,361
International | Quoted Prices In Active Markets for Identical Assets (Level 1) | Recurring basis
Employee benefits
Total plan assets	$ 4,390	$ 3,361
International | Significant Other Observable Inputs (Level 2) | Recurring basis
Employee benefits
Total plan assets
Fixed income securities | Carrying Amount | Recurring basis
Employee benefits
Total plan assets	$ 8,140	$ 8,047
Fixed income securities | Quoted Prices In Active Markets for Identical Assets (Level 1) | Recurring basis
Employee benefits
Total plan assets	984
Fixed income securities | Significant Other Observable Inputs (Level 2) | Recurring basis
Employee benefits
Total plan assets	7,156	$ 8,047
Government issues | Carrying Amount | Recurring basis
Employee benefits
Total plan assets	1,329	$ 1,413
Government issues | Quoted Prices In Active Markets for Identical Assets (Level 1) | Recurring basis
Employee benefits
Total plan assets	984
Government issues | Significant Other Observable Inputs (Level 2) | Recurring basis
Employee benefits
Total plan assets	345	$ 1,413
Corporate bonds | Carrying Amount | Recurring basis
Employee benefits
Total plan assets	$ 1,308	$ 1,220
Corporate bonds | Quoted Prices In Active Markets for Identical Assets (Level 1) | Recurring basis
Employee benefits
Total plan assets
Corporate bonds | Significant Other Observable Inputs (Level 2) | Recurring basis
Employee benefits
Total plan assets	$ 1,308	$ 1,220
Mortgage backed | Carrying Amount | Recurring basis
Employee benefits
Total plan assets	$ 562	$ 533
Mortgage backed | Quoted Prices In Active Markets for Identical Assets (Level 1) | Recurring basis
Employee benefits
Total plan assets
Mortgage backed | Significant Other Observable Inputs (Level 2) | Recurring basis
Employee benefits
Total plan assets	$ 562	$ 533
High yield bonds and bond funds | Carrying Amount | Recurring basis
Employee benefits
Total plan assets	$ 4,941	$ 4,881
High yield bonds and bond funds | Quoted Prices In Active Markets for Identical Assets (Level 1) | Recurring basis
Employee benefits
Total plan assets
High yield bonds and bond funds | Significant Other Observable Inputs (Level 2) | Recurring basis
Employee benefits
Total plan assets	$ 4,941	$ 4,881