Stock Options and Restricted Stock Units (Tables)

12 Months Ended

Dec. 31, 2021

Stock Options and Restricted Stock Units

Summary of stock options activity

	Number of Options Outstanding			Range of Exercise Price		Weighted Average Exercise Price		Aggregate Intrinsic Value
Balance on December 31, 2019		127,563		$	6.80 – 17.40	$	12.63	$	142,818
Options granted		-			-		-		-
Options exercised		(36,250	)	7.76 – 17.40			12.47		295,921
Options forfeited/cancelled		(16,083	)	9.26 – 17.40			15.17		22,682
Balance on December 31, 2020		75,230		$	6.80 – 17.40	$	12.16	$	402,275
Options granted		-			-		-		-
Options exercised		(23,563	)	6.80 – 17.40			13.01		267,300
Options forfeited/cancelled		(4,500	)	9.26 – 13.21			11.45		62,385
Balance on December 31, 2021		47,167		$	6.80 – 17.40	$	11.81	$	832,254

Schedule of unvested stock options

	Number of Options Outstanding			Weighted Average Exercise Price		Weighted Average Grant Date Fair Value
Balance on December 31, 2019		29,000		$	12.87	$	5.47
Options vested		(14,500	)		12.87		5.47
Options forfeited/cancelled		-			-		-
Balance on December 31, 2020		14,500		$	12.87	$	5.47
Options vested		(14,500	)		12.87		5.47
Options forfeited/cancelled		-			-		-
Balance on December 31, 2021		-		$	-	$	-

Schedule of stock options

	Options Outstanding						Options Exercisable
Exercise Price Range	Number		Weighted Average Remaining Contractual Life (in Years)		Weighted Average Exercise Price		Number
$0.01 - 7.00		5,000		3.89	$	6.80		5,000
$7.01 - 8.00		10,000		1.74	$	7.76		10,000
$8.01 - 12.00		3,667		5.45	$	10.07		3,667
$12.01 - 15.00		20,500		6.61	$	13.13		20,500
$15.01 - 17.40		8,000		6.42	$	17.40		8,000
Total		47,167		5.16	$	11.81		47,167

Summary of restricted stock units issued

	Number of RSUs Outstanding			Weighted Average Grant Date Fair Value		Aggregate Intrinsic Value
Balance on December 31, 2019		48,002		$	11.55	$	554,388
Units granted		18,000			10.67		192,060
Units vested/issued		(32,002	)		11.61		353,948
Units forfeited		(15,000	)		11.35		156,665
Balance on December 31, 2020		19,000		$	10.78	$	332,690
Units granted		17,765			25.92		460,504
Units vested/issued		(19,000	)		10.78		464,400
Units forfeited		-			-		-
Balance on December 31, 2021		17,765		$	25.92	$	523,197