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STOCK BASED COMPENSATION (Details)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2017
USD ($)
plan
$ / shares
shares
Dec. 31, 2016
USD ($)
$ / shares
shares
Apr. 17, 2017
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of active stock based compensation plan | plan 1    
Number of shares authorized (in shares) | shares     250,000
Number of shares available for grant (in shares) | shares 240,000    
Percentages of stock option ownership considered for higher exercise price of option 10.00%    
Option exercise price as percentages of closing exercise price of stock for specific shareholders 110.00%    
New shares issued (in shares) | shares 15,000    
Intrinsic value of exercised options $ 200 $ 100  
Non-vested shares (in shares) | shares 15,000 35,000  
Number of Options [Roll Forward]      
Outstanding at beginning of year (in shares) | shares 252,000    
Granted (in shares) | shares 10,000    
Exercised (in shares) | shares (15,000)    
Forfeited or expired (in shares) | shares 0    
Outstanding at end of year (in shares) | shares 247,000 252,000  
Options exercisable at year end (in shares) | shares 232,000    
Weighted average exercise price [Roll Forward]      
Outstanding at beginning of year (in dollars per share) | $ / shares $ 16.65    
Granted (in dollars per share) | $ / shares 14.18    
Exercised (in dollars per share) | $ / shares 5.48    
Forfeited or expired (in dollars per share) | $ / shares 0.00    
Outstanding at end of year (in dollars per share) | $ / shares 17.23 $ 16.65  
Options exercisable at year end (in dollars per share) | $ / shares $ 17.26    
Weighted average remaining contractual life (in years) [Abstract]      
Outstanding at end of year 5 years 6 months 11 days    
Options exercisable at year end 5 years 3 months 22 days    
Aggregate intrinsic value [Abstract]      
Outstanding at end of year $ (552)    
Options exercisable at year end $ (524)    
Assumptions used to calculate compensation expense and fair value of stock options granted [Abstract]      
Dividend yield 3.50% 2.50%  
Risk-free interest rate 1.70%    
Risk-free interest rate, minimum   1.10%  
Risk-free interest rate, maximum   1.70%  
Expected volatility rate 64.40%    
Expected market price volatility, minimum   67.40%  
Expected market price volatility, maximum   73.50%  
Average expected life of stock options 4 years 6 months 4 years 6 months  
Weighted-average grant-date fair value (in dollars per share) | $ / shares $ 5.87 $ 11.90  
Total fair value of shares vested $ 300 $ 500  
Summary of amounts related to the expense of the fair values of options [Abstract]      
Selling, general and administrative expenses and income from operations before income taxes 246 690  
Benefit for income taxes (45) (86)  
Effect on net income 201 $ 604  
Unrecognized compensation expense [Abstract]      
Total gross unrecognized compensation expense in 2018 122    
Total gross unrecognized compensation expense in 2019 38    
Total unrecognized compensation expense 160    
Tax benefit associated with unrecognized compensation expense due current 20    
Tax benefit associated with unrecognized compensation expense in 2018 3    
Total tax benefit associated with unrecognized compensation expense 23    
Total net unrecognized compensation expense in 2018 102    
Total net unrecognized compensation expense in 2019 35    
Total net unrecognized compensation expense $ 137    
Stock Issued During Period, Shares, Restricted Stock Award, Gross | shares 0    
Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentages of stock option ownership considered for higher exercise price of option 10.00%    
Vesting period of stock options 2 years    
Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Option exercise price as percentages of closing exercise price of stock for specific shareholders 110.00%    
Vesting period of stock options 3 years    
Board of Directors      
Number of Options [Roll Forward]      
Granted (in shares) | shares 10,000    
Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expiration period of stock option plan 10 years    
Incentive Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expiration period of stock option plan 5 years    
Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted stock awards during period (in shares) | shares   13,000  
2017 Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized (in shares) | shares     181,674
2008 Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized (in shares) | shares     68,326