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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Nov. 30, 2010
Earnings (Loss) Per Common Share:        
Weighted average common stock equivalents from assumed exercise of stock options (in shares) 16,000      
Outstanding options excluded from computation of earnings per share as effect would be antidilutive (in shares) 74,250      
Maximum | Total Sales        
Revenue Recognition        
Percentage of sales (as a percent) 10.00%      
Stock Options        
Options        
Balance at the beginning of the period(in shares) 139,750      
Granted (in shares) 0 0    
Exercised (in shares) 0 0    
Cancelled (in shares) (49,500)      
Balance at the end of the period (in shares) 90,250      
Exercisable at the end of the period (in shares) 90,250      
Weighted-Average Exercise Price Per Share        
Outstanding at the beginning of the period (in dollars per share) $ 6.66      
Cancelled (in dollars per share) 7.44      
Outstanding at the end of the period (in dollars per share) 6.23      
Exercisable at the end of the period (in dollars per share) $ 6.23      
Weighted-Average Remaining Contractual Term        
Outstanding at the end of the period 2 years 8 months 23 days      
Exercisable at the end of the period 2 years 8 months 23 days      
Aggregate Intrinsic Value        
Outstanding at the end of the period $ 10,400      
Exercisable at the end of the period 10,400      
Additional disclosures        
Compensation expense 994 $ 3,669    
Unrecognized compensation related to unvested awards $ 0      
Equity Appreciation Rights Plan        
Awards exercised (in shares) 0 0    
Granted (in shares) 0 0    
2010 Plan | Equity Appreciation Rights Plan        
Additional disclosures        
Compensation expense $ 9,700 $ 11,700    
Equity Appreciation Rights Plan        
Vesting period from the base date 3 years      
Redemption cash payment period 90 days      
Shares granted (in units) 0      
Accrued compensation $ 72,000   $ 143,000  
2010 Plan | Equity Appreciation Rights Plan | Other Accrued Liabilities        
Equity Appreciation Rights Plan        
Accrued compensation 49,000   61,000  
2010 Plan | Equity Appreciation Rights Plan | Other Long-term Liabilities        
Equity Appreciation Rights Plan        
Accrued compensation $ 23,000   $ 82,000  
2010 Plan | Equity Appreciation Rights Plan | Maximum        
Equity Appreciation Rights Plan        
Number of common shares authorized       1,000,000