SHAREHOLDERS' EQUITY (Tables)

12 Months Ended

Dec. 31, 2021

Stockholders' Equity Note [Abstract]

b.Stock option plans (cont.):

The fair value of the Company’s stock options granted under the 2012 plan for the years ended December 31, 2021, 2020 and 2019 was estimated using the following assumptions:

	2021	2020	2019

Expected stock price volatility	45.6% – 52%	44.7% – 43.5%	34.2% – 36.8%
Expected option life (in years)	3.5-5	3.5-5	3.5-5
Risk free interest rate	0.1% – 0.64%	0.12% – 0.25%	1.44% – 1.63%
Dividend yield	0%	0%	0%

Schedule of Stock Option Activity

The following table is a summary of the activity of TAT's Stock Option plan:

	Year ended December 31,					Year ended December 31,				Year ended December 31,
	2021					2020				2019
	Number of options			Weighted average exercise price		Number of options		Weighted average exercise price		Number of options			Weighted average exercise price

Outstanding at the beginning of the year		621,460		$	7.26		571,460	$	7.53		528,268		$	9.03
Granted		220,000			6.45		50,000		4.58		170,000			5.44
Forfeited		(121,460	)		8.9		-		-		(126,808	)		11.19
Exercised		-			-		-		-		-			-

Outstanding at the end of the year		720,000			6.8		621,460		7.26		571,460			7.53

Exercisable at the end of the year		379,375		$	7.44		381,629	$	7.91		264,389		$	7.74