SHAREHOLDERS' EQUITY (Details)	12 Months Ended
	Dec. 31, 2020 USD ($) $ / shares shares
Options outstanding, beginning | shares	381,197
Granted | shares	105,000
Cancelled | shares	(82,407)
Exercised | shares	0
Options outstanding, ending | shares	403,790
Options exercisable | shares	327,124
Weighted average exercise price outstanding, beginning | $ / shares	$ 4.03
Granted | $ / shares	2.89
Cancelled | $ / shares	3.68
Exercised | $ / shares	0.00
Weighted average exercise price outstanding, ending | $ / shares	3.81
Weighted average exercise price exercisable | $ / shares	$ 4.02
Weighted average contractual life outstanding	7 years 6 months 29 days
Weighted average contractual life exercisable	7 years 1 month 28 days
Aggregate intrinsic value outstanding | $	$ 57,488
Aggregate intrinsic value exercisable | $	$ 57,488
2018 Plan
Options outstanding, beginning | shares	286,197
Granted | shares	105,000
Cancelled | shares	(82,407)
Exercised | shares	0
Options outstanding, ending | shares	308,790
Weighted average exercise price outstanding, beginning | $ / shares	$ 3.50
Granted | $ / shares	2.89
Cancelled | $ / shares	3.68
Exercised | $ / shares	0.00
Weighted average exercise price outstanding, ending | $ / shares	$ 3.24
2012 Plan
Options outstanding, beginning | shares	36,000
Granted | shares	0
Cancelled | shares	0
Exercised | shares	0
Options outstanding, ending | shares	36,000
Weighted average exercise price outstanding, beginning | $ / shares	$ 0.98
Granted | $ / shares	0.00
Cancelled | $ / shares	0.00
Exercised | $ / shares	0.00
Weighted average exercise price outstanding, ending | $ / shares	$ 0.98
2011 Plan
Options outstanding, beginning | shares	43,000
Granted | shares	0
Cancelled | shares	0
Exercised | shares	0
Options outstanding, ending | shares	43,000
Weighted average exercise price outstanding, beginning | $ / shares	$ 3.00
Granted | $ / shares	0.00
Cancelled | $ / shares	0.00
Exercised | $ / shares	0.00
Weighted average exercise price outstanding, ending | $ / shares	$ 3.00
2002 Plan
Options outstanding, beginning | shares	16,000
Granted | shares	0
Cancelled | shares	0
Exercised | shares	0
Options outstanding, ending | shares	16,000
Weighted average exercise price outstanding, beginning | $ / shares	$ 23.33
Granted | $ / shares	0.00
Cancelled | $ / shares	0.00
Exercised | $ / shares	0.00
Weighted average exercise price outstanding, ending | $ / shares	$ 23.33