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STOCK-BASED COMPENSATION, NARRATIVE (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Period options granted to date vest ratably 5 years    
Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Aggregate intrinsic value for option outstanding $ 183 $ 273  
Aggregate intrinsic value of options exercisable 183 255  
Total expense related to options included in salaries and wages 1 5 $ 19
Tax benefit from compensation expense $ 0 $ 2 $ 6
Ownership Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized for issuance (in shares) 200,000    
Ownership Incentive Plan | Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Period options granted to date vest ratably 5 years    
Period options granted expires after date of grant 10 years    
Ownership Incentive Plan 2015      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized for issuance (in shares) 450,000