STOCKHOLDERS' EQUITY (Tables)

12 Months Ended

Dec. 31, 2019

STOCKHOLDERS' EQUITY [Abstract]

Stock-Based Compensation Expense

A summary of the restricted stock awards activity for the year ended December 31, 2019 is presented below:

	Restricted Stock		Weighted- Average Grant Date Fair Value Per Share
Nonvested at December 31, 2018		-	$	-
Granted		10,450		60.47
Vested		-		-
Forfeited		-		-
Nonvested at September 30, 2019		10,450	$	60.47

Assumptions Used to Estimate the Fair Values of the Stock Options Granted

The following table presents assumptions used to estimate the fair values of the stock options granted in the periods presented:

	2019			2018
Risk-free interest rate		1.62% - 2.18	%		2.62% - 2.94	%
Expected volatility		39.4% - 39.5	%		39.4% - 39.9	%
Expected life (in years)		6.25			6.25
Dividend yield		-			-

Stock Options Activity

The summary of the stock options activity is as follows:

	Shares			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term		Aggregate Intrinsic Value
Outstanding at December 31, 2017		232,000		$	21.56		2.52	$	5,050,990
Grants		81,500			51.42		-		-
Exercised		(138,000	)		18.63		-		3,720,149
Outstanding at December 31, 2018		175,500			37.73		6.33		4,014,235
Grants		100,000			48.93		-		-
Exercised		(75,063	)		29.20		-		2,477,039
Cancelled		(11,250	)		41.82		-		178,988
Outstanding at December 31, 2019		189,187			46.79		8.62		1,920,684
Vested and expected to vest at December 31, 2019		189,187		$	46.79		8.62	$	1,920,684
Exercisable at December 31, 2019		39,312		$	32.73		5.55	$	951,920

Information Relating to Stock Options by Exercise Price

The following table summarizes information relating to stock options by exercise price at December 31, 2019:

	Outstanding Shares						Exercisable Shares
Option Exercise Price	Number of Shares		Weighted Average Life (years)		Weighted Average Exercise Price		Number of Shares		Weighted Average Option Price		Weighted Average Life (years)
$15.75 - 15.85		21,000		3.06	$	15.82		21,000	$	15.82		3.06
$37.64 – 46.56		103,187		9.49		39.53		5,812		40.56		7.38
$54.93 – 66.30		65,000		9.04		58.66		12,500		57.48		8.88
		189,187		8.62	$	46.79		39,312	$	32.73		5.55