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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Part 2 (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Jun. 03, 2008
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Sep. 30, 2019
Jun. 18, 2019
Jun. 19, 2014
Sep. 22, 2011
Share-based Arrangements with Employees and Nonemployees [Abstract]                    
Number of stock options issued under the plan (in shares)       46,875 114,947          
Stock options, additional disclosure [Abstract]                    
Outstanding, aggregate intrinsic value, end of period   $ 730,142   $ 730,142            
Exercisable, aggregate intrinsic value, end of period   713,762   $ 713,762            
Stock Options Outstanding [Abstract]                    
Number of Shares (in shares)             650,093      
Average remaining contract life       2 years 9 months 14 days            
Weighted average exercise price (in dollars per share)             $ 5.77      
Aggregate intrinsic value   730,142   $ 730,142     $ 730,142      
Stock Options Exercisable [Abstract]                    
Number of Shares (in shares)             447,759      
Weighted average exercise price (in dollars per share)             $ 4.98      
Aggregate intrinsic value   713,762   713,762     $ 713,762      
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]                    
Allocated share-based compensation expense   506,588 $ 74,759 1,230,966 $ 299,044          
1 to 2.79999 [Member]                    
Stock options, additional disclosure [Abstract]                    
Outstanding, aggregate intrinsic value, end of period   0   0            
Exercisable, aggregate intrinsic value, end of period   0   $ 0            
Range of Exercise Prices [Abstract]                    
Range of exercise prices, minimum (in dollars per share)       $ 1            
Range of exercise prices, maximum (in dollars per share)       $ 2.79999            
Stock Options Outstanding [Abstract]                    
Number of Shares (in shares)             0      
Average remaining contract life       0 years            
Weighted average exercise price (in dollars per share)             $ 0      
Aggregate intrinsic value   0   $ 0     $ 0      
Stock Options Exercisable [Abstract]                    
Number of Shares (in shares)             0      
Weighted average exercise price (in dollars per share)             $ 0      
Aggregate intrinsic value   0   0     $ 0      
2.8 to 4.59999 [Member]                    
Stock options, additional disclosure [Abstract]                    
Outstanding, aggregate intrinsic value, end of period   689,143   689,143            
Exercisable, aggregate intrinsic value, end of period   689,143   $ 689,143            
Range of Exercise Prices [Abstract]                    
Range of exercise prices, minimum (in dollars per share)       $ 2.8            
Range of exercise prices, maximum (in dollars per share)       $ 4.59999            
Stock Options Outstanding [Abstract]                    
Number of Shares (in shares)             257,468      
Average remaining contract life       1 year 4 months 28 days            
Weighted average exercise price (in dollars per share)             $ 3.44      
Aggregate intrinsic value   689,143   $ 689,143     $ 689,143      
Stock Options Exercisable [Abstract]                    
Number of Shares (in shares)             257,468      
Weighted average exercise price (in dollars per share)             $ 3.44      
Aggregate intrinsic value   689,143   689,143     $ 689,143      
4.6 to 6.39999 [Member]                    
Stock options, additional disclosure [Abstract]                    
Outstanding, aggregate intrinsic value, end of period   40,999   40,999            
Exercisable, aggregate intrinsic value, end of period   24,619   $ 24,619            
Range of Exercise Prices [Abstract]                    
Range of exercise prices, minimum (in dollars per share)       $ 4.6            
Range of exercise prices, maximum (in dollars per share)       $ 6.39999            
Stock Options Outstanding [Abstract]                    
Number of Shares (in shares)             137,875      
Average remaining contract life       2 years 8 months 12 days            
Weighted average exercise price (in dollars per share)             $ 5.87      
Aggregate intrinsic value   40,999   $ 40,999     $ 40,999      
Stock Options Exercisable [Abstract]                    
Number of Shares (in shares)             87,125      
Weighted average exercise price (in dollars per share)             $ 5.89      
Aggregate intrinsic value   24,619   24,619     $ 24,619      
6.4 to 8.19999 [Member]                    
Stock options, additional disclosure [Abstract]                    
Outstanding, aggregate intrinsic value, end of period   0   0            
Exercisable, aggregate intrinsic value, end of period   0   $ 0            
Range of Exercise Prices [Abstract]                    
Range of exercise prices, minimum (in dollars per share)       $ 6.4            
Range of exercise prices, maximum (in dollars per share)       $ 8.19999            
Stock Options Outstanding [Abstract]                    
Number of Shares (in shares)             207,875      
Average remaining contract life       4 years 3 months 22 days            
Weighted average exercise price (in dollars per share)             $ 7.31      
Aggregate intrinsic value   0   $ 0     $ 0      
Stock Options Exercisable [Abstract]                    
Number of Shares (in shares)             84,416      
Weighted average exercise price (in dollars per share)             $ 7.32      
Aggregate intrinsic value   0   0     $ 0      
8.2 to 12 [Member]                    
Stock options, additional disclosure [Abstract]                    
Outstanding, aggregate intrinsic value, end of period   0   0            
Exercisable, aggregate intrinsic value, end of period   0   $ 0            
Range of Exercise Prices [Abstract]                    
Range of exercise prices, minimum (in dollars per share)       $ 8.2            
Range of exercise prices, maximum (in dollars per share)       $ 12            
Stock Options Outstanding [Abstract]                    
Number of Shares (in shares)             46,875      
Average remaining contract life       3 years 10 months 6 days            
Weighted average exercise price (in dollars per share)             $ 11.45      
Aggregate intrinsic value   0   $ 0     $ 0      
Stock Options Exercisable [Abstract]                    
Number of Shares (in shares)             18,750      
Weighted average exercise price (in dollars per share)             $ 11.45      
Aggregate intrinsic value   $ 0   $ 0     $ 0      
Stock Options [Member]                    
Share-based Arrangements with Employees and Nonemployees [Abstract]                    
Number of stock options outstanding under the plan (in shares)   650,093   711,968   711,968 650,093      
Assumptions made in calculating fair values of options [Abstract]                    
Expected term   0 years 4 years 6 months 0 years 4 years 10 months 24 days          
Expected volatility   0.00% 39.69% 0.00% 39.91%          
Expected dividend yield   0.00% 0.00% 0.00% 0.00%          
Risk-free interest rate   0.00% 2.70% 0.00% 2.70%          
Stock options, number of shares [Roll forward]                    
Outstanding, beginning of period (in shares)       711,968            
Granted (in shares)       0            
Exercised (in shares)       46,875            
Forfeited/expired/cancelled (in shares)       15,000            
Outstanding, end of period (in shares)   650,093   650,093   711,968        
Exercisable, end of period (in shares)   447,759   447,759            
Stock options, outstanding, weighted average exercise price per share [Roll Forward]                    
Outstanding, beginning of period (in dollars per share)       $ 5.62            
Granted (in dollars per share)       0            
Exercised (in dollars per share)       3.48            
Forfeited/expired/cancelled (in dollars per share)       5.68            
Outstanding, end of period (in dollars per share)   $ 5.77   5.77   $ 5.62        
Exercisable, end of period (in dollars per share)   $ 4.98   $ 4.98            
Stock options, additional disclosure [Abstract]                    
Outstanding, weighted average remaining contract term       2 years 9 months 14 days   3 years 3 months 29 days        
Exercisable, weighted average remaining contract term       2 years 1 month 28 days            
Outstanding, aggregate intrinsic value, beginning of period       $ 687,364            
Granted, aggregate intrinsic value       0            
Exercised, aggregate intrinsic value       172,242            
Outstanding, aggregate intrinsic value, end of period   $ 730,142   730,142   $ 687,364        
Exercisable, aggregate intrinsic value, end of period   713,762   $ 713,762            
Net unrecognized compensation cost             $ 496,296      
Weighted average period for recognition of net unrecognized compensation cost       1 year 9 months 25 days            
Total fair value of stock options vested during period       $ 295,412 $ 379,384          
Stock Options Outstanding [Abstract]                    
Aggregate intrinsic value   730,142   687,364   $ 687,364 730,142      
Stock Options Exercisable [Abstract]                    
Aggregate intrinsic value   $ 713,762   $ 713,762     713,762      
Weighted Average Grant Date Fair Value [Abstract]                    
Weighted average period for recognition of net unrecognized compensation cost       1 year 9 months 25 days            
Restricted Stock and Restricted Stock Units [Member]                    
Share-based Arrangements with Employees and Nonemployees [Abstract]                    
Number of restricted shares awarded under the plan (in shares)       375,000            
Stock options, additional disclosure [Abstract]                    
Weighted average period for recognition of net unrecognized compensation cost       2 years 5 months 1 day            
Number of Shares & Units [Abstract]                    
Outstanding, beginning of period (in shares)       287,564            
Granted (in shares)       375,000            
Earned/released (in shares)       0            
Forfeited/expired/cancelled (in shares)       0            
Outstanding, end of period (in shares)   662,564   662,564   287,564        
Weighted Average Grant Date Fair Value [Abstract]                    
Outstanding, beginning of period (in dollars per share)       $ 9.65            
Granted (in dollars per share)       5.80            
Earned/released (in dollars per share)       0            
Forfeited/expired/cancelled (in dollars per share)       0            
Outstanding, end of period (in dollars per share)   $ 7.47   $ 7.47   $ 9.65        
Net unrecognized compensation cost             $ 3,639,325      
Weighted average period for recognition of net unrecognized compensation cost       2 years 5 months 1 day            
2008 Stock Incentive Plan [Member] | Stock Options [Member]                    
Share-based Arrangements with Employees and Nonemployees [Abstract]                    
Number of shares authorized under the plan (in shares) 625,000                 750,000
Number of stock options outstanding under the plan (in shares)   99,132   99,132     99,132      
Increase in number of shares authorized (in shares) 125,000                  
Number of stock options issued under the plan (in shares)       508,889            
Options or shares still available to be issued (in shares)             0      
Stock options, number of shares [Roll forward]                    
Outstanding, end of period (in shares)   99,132   99,132            
2014 Stock Incentive Plan [Member] | Stock Options [Member]                    
Share-based Arrangements with Employees and Nonemployees [Abstract]                    
Number of shares authorized under the plan (in shares)                 800,000  
Number of stock options outstanding under the plan (in shares)   344,093   344,093     344,093      
Number of stock options issued under the plan (in shares)       132,282            
Options or shares still available to be issued (in shares)             0      
Stock options, number of shares [Roll forward]                    
Outstanding, end of period (in shares)   344,093   344,093            
2014 Stock Incentive Plan [Member] | Restricted Stock [Member]                    
Share-based Arrangements with Employees and Nonemployees [Abstract]                    
Number of restricted shares awarded under the plan (in shares)           266,839        
Number of Shares & Units [Abstract]                    
Granted (in shares)           266,839        
2014 Stock Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member]                    
Share-based Arrangements with Employees and Nonemployees [Abstract]                    
Number of restricted shares awarded under the plan (in shares)           20,725        
Number of Shares & Units [Abstract]                    
Granted (in shares)           20,725        
2019 Omnibus Incentive Plan [Member] | Stock Options [Member]                    
Share-based Arrangements with Employees and Nonemployees [Abstract]                    
Number of shares authorized under the plan (in shares)               2,400,000    
Options or shares still available to be issued (in shares)             2,025,000      
2019 Omnibus Incentive Plan [Member] | Restricted Stock [Member]                    
Share-based Arrangements with Employees and Nonemployees [Abstract]                    
Number of restricted shares awarded under the plan (in shares)       375,000            
Number of Shares & Units [Abstract]                    
Granted (in shares)       375,000            
Cost of Goods Sold [Member]                    
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]                    
Allocated share-based compensation expense   $ 2,691 $ 5,800 $ 8,479 19,800          
Research and Development Expense [Member]                    
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]                    
Allocated share-based compensation expense   56,251 3,600 172,346 19,000          
Selling, General and Administrative Expenses [Member]                    
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]                    
Allocated share-based compensation expense   $ 447,646 $ 65,359 $ 1,050,141 $ 260,244