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SHAREHOLDERS' EQUITY (Tables)

12 Months Ended

Dec. 31, 2020

Stockholders' Equity Note [Abstract]

Schedule of Stock Options Assumptions

The fair value of the Company’s stock options granted under the 2012 plan for the years ended December 31, 2020, 2019 and 2018 was estimated using the following assumptions:

		2020		2019		2018
Expected stock price volatility		44.7% – 43.5%		34.2% – 36.8%		32.6% – 40.8%
Expected option life (in years)		3.5-5		3.5-5		3.5-5.5
Risk free interest rate		0.12% – 0.25%		1.44% – 1.63%		1.71% – 2.87%
Dividend yield		0%		0%		0% - 5%

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,
		2020								2019								2018
		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			571,460			$	7.53				528,268			$	9.03				365,000			$	8.53
Granted			50,000				4.58				170,000				5.44				273,893				9.70
Forfeited			-				-				(126,808	)			11.19				(83,957	)			9.85
Exercised			-				-				-				-				(26,668	)			7.15
Outstanding at the end of the year			621,460				7.26				571,460				7.53				528,268			$	9.03
Exercisable at the end of the year			381,629			$	7.91				264,389			$	7.74				163,438			$	8.34

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- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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