STOCKHOLDERS' EQUITY (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2021

Dec. 31, 2020

Stock-Based Compensation

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

RSU activity during the six months ended June 30, 2021 is summarized as follows:

		Weighted
		Average
	Number of	Grant Date
	Shares	Fair Value
Unvested shares at January 1, 2021	54,300	$	6.11
Granted	36,550		11.01
Vested	(1,340)		11.30
Forfeited or surrendered	(2,400)		6.11
Unvested shares at June 30, 2021	87,110		8.09

		Weighted
		Average
	Number of	Grant Date
	Shares	Fair Value
Unvested shares at January 1, 2020	—		—
Granted	54,300	$	6.11
Vested	—		—
Forfeited or surrendered	—		—
Unvested shares at December 31, 2020	54,300		6.11

Share-based Payment Arrangement, Option, Activity [Table Text Block]

Stock option activity during the six months ended June 30, 2021 was as follows:

		Weighted
		Average
		Exercise
	Shares	Price
Outstanding at January 1, 2021	17,500	$	6.97
Granted	10,000		11.50
Exercised	(3,000)		9.23
Expired and forfeited	(1,000)		10.75
Outstanding at June 30, 2021	23,500	$	8.45
Exercisable at June 30, 2021	5,165	$	6.54

		Weighted
		Average
		Exercise
	Shares	Price
Outstanding at January 1, 2020	19,250	$	11.32
Granted	10,000		5.67
Exercised	—		—
Expired and forfeited	(11,750)		12.99
Outstanding at December 31, 2020	17,500	$	6.97
Exercisable at December 31, 2020	5,332	$	9.19

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	2021			2020
Dividend yield		—			—
Expected volatility		51.6	%		40.3	%
Expected life of option (years)		10			10
Risk-free interest rate		0.5	%		1.4	%
Fair value of each option on grant date	$	6.84		$	2.90

	2020			2019
Dividend yield		0			0
Expected volatility		40.3	%		37.5	%
Expected life of option (years)		10			5
Risk-free interest rate		1.4	%		1.7	%
Fair value of each option on grant date	$	2.90		$	2.53