STOCKHOLDERS EQUITY (Details 1) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Number of options, outstanding
Outstanding, beginning of year (in shares)	605,000	1,635,000
Exercised (in shares)	(105,000)	(1,030,000)
Outstanding, end of year (in shares)	500,000	605,000
Exercisable, end of year (in shares)	500,000	605,000
Weighted average exercise price
Outstanding, beginning of year (in dollars per share)	$ 1.39	$ 1.18
Exercised (in dollars per share)	2.34	1.05
Outstanding, end of year (in dollars per share)	1.19	1.39
Exercisable, end of year (in dollars per share)	$ 1.19	$ 1.39