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INCENTIVE PLANS (Details) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
May 31, 2017
Nov. 30, 2010
May 03, 2005
Stock Options          
Incentive plans          
Compensation expense $ 43,200 $ 994      
Unrecognized compensation related to unvested awards $ 164,160        
Unrecognized compensation, vesting period 2 years 4 months 13 days        
Options          
Balance at the beginning of the period(in shares) 37,750        
Granted (in shares) 150,000        
Balance at the end of the period (in shares) 187,750 37,750      
Exercisable at the end of the period (in shares) 37,750        
Weighted-Average Exercise Price Per Share          
Outstanding at the beginning of the period (in dollars per share) $ 4.75        
Granted (in dollars per share) 3.43        
Outstanding at the end of the period (in dollars per share) 3.70 $ 4.75      
Exercisable at the end of the period (in dollars per share) $ 4.75        
Weighted-Average Remaining Contractual Term          
Outstanding at the end of the period 8 years 1 month 17 days        
Exercisable at the end of the period 3 years 2 months 12 days        
Aggregate Intrinsic Value          
Outstanding at the end of the period $ 74,070        
Exercisable at the end of the period 9,570        
Additional disclosures          
Intrinsic value of options exercised $ 0 $ 964      
Cash received from options exercised   $ 4,822      
Stock Options | Minimum          
Incentive plans          
Exercisable period 1 year        
Stock Options | Maximum          
Incentive plans          
Expiration term 10 years        
2003 Plan | Stock Options          
Incentive plans          
Number of shares eliminated         172,500
2005 Plan | Stock Options          
Incentive plans          
Shares available for grant 0       200,000
Options          
Granted (in shares)   0      
2005 Plan | Stock Options | Minimum          
Incentive plans          
Purchase price as a percentage of market value 100.00%        
2010 Plan | Equity Appreciation Rights Plan          
Incentive plans          
Compensation (income) expense $ (22,000) $ 37,000      
Equity Appreciation Rights Plan          
Vesting period from the base date 3 years        
Shares granted (in units) 100,000 31,666      
Accrued compensation included in other accrued liabilities   $ 23,000      
Accrued compensation included in other long-term liabilities   22,000      
Accrued compensation liability          
Beginning Balance $ 45,000 143,000      
Reductions (22,000) (36,000)      
Payments $ (23,000) (62,000)      
Ending Balance   45,000      
Accrued compensation liability          
Compensation liability included in other accrued liabilities   23,000      
Accrued compensation included in other long-term liabilities   $ 22,000      
2010 Plan | Equity Appreciation Rights Plan | Maximum          
Incentive plans          
Number of common shares authorized       1,000,000  
Equity Appreciation Rights Plan          
Redemption cash payment period 90 days        
2017 Plan | Stock Options          
Incentive plans          
Number of common shares authorized     350,000    
Options          
Granted (in shares) 150,000