Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2022

Class Of Stock [Line Items]

Schedule of Assumptions for Fair Value of Option Grant

In connection with the stock option grants during 2022 and 2021, the fair value of each option grant was estimated on the date of the grant using the Black-Scholes option pricing model with the following assumptions:

	2022	2021
Risk-free interest rate	2% - 3%	0% - 1%
Expected life (years)	6	6.6
Expected volatility	70%	80%
Expected dividend yield	Zero	Zero

Schedule of Changes in Common Stock Options

The following summarizes the changes in common stock options:

	2022					2021
	Options			Weighted Average Exercise Price		Options			Weighted Average Exercise Price
Outstanding at beginning of year		2,193,288		$	1.23		3,516,225		$	0.63
Granted		279,500		$	1.62		722,500		$	2.28
Exercised		(339,125	)	$	0.50		(1,895,437	)	$	0.48
Forfeited		(106,313	)	$	1.79		(150,000	)	$	1.61
Outstanding at end of year		2,027,350		$	1.38		2,193,288		$	1.23
Options exercisable at year end		1,023,975		$	0.97		978,350		$	0.60
Weighted-average fair value of options granted    during the year				$	1.62				$	1.59

Schedule of Information about All Stock Options Outstanding

The following table summarizes information about all stock options outstanding as of December 31, 2022:

Exercise price	Options Outstanding		Weighted Average Remaining Life (years)		Weighted Average Exercise Price		Number Exercisable		Weighted Average Remaining Life (years)		Weighted Average Exercise Price
$ 0.40 to $ 0.53		503,100		4.4	$	0.45		495,600		4.3	$	0.45
$ 0.70 to $ 0.95		354,875		6.8	$	0.79		240,125		6.8	$	0.79
$ 1.37 to $ 1.90		877,500		8.7	$	1.66		196,375		8.2	$	1.63
$ 2.77 to $ 3.33		291,875		8.4	$	2.85		91,875		8.3	$	2.84
		2,027,350						1,023,975

Other Options Issued [Member]

Class Of Stock [Line Items]

Schedule of Stock Options and Other Stock Options Issued

Other Options	2022			2021
Options outstanding, beginning of year		404,375			344,375
Options issued		—			150,000
Options exercised		(21,250	)		(22,500	)
Options forfeited		—			(67,500	)
Options outstanding, end of year		383,125			404,375

The outstanding options vest over four years at exercise prices ranging from $0.70 to $1.78 per share.

2010 Non-Qualified Stock Option Plan [Member]

Class Of Stock [Line Items]

Schedule of Stock Options and Other Stock Options Issued

2010 Plan	2022			2021
Options outstanding, beginning of year		331,250			1,100,000
Options granted		100,000			50,000
Options exercised		(147,500	)		(793,750	)
Options forfeited		(40,000	)		(25,000	)
Options outstanding, end of year		243,750			331,250

2016 Stock Option Plan [Member]

Class Of Stock [Line Items]

Schedule of Stock Options and Other Stock Options Issued

2016 Plan	2022			2021
Options outstanding, beginning of year		1,457,663			2,071,850
Options granted		35,000			522,500
Options exercised		(170,375	)		(1,079,187	)
Options forfeited		(66,313	)		(57,500	)
Options outstanding, end of year		1,255,975			1,457,663

2022 Stock Option Plan [Member]

Class Of Stock [Line Items]

Schedule of Stock Options and Other Stock Options Issued

2022 Plan	2022
Options outstanding, beginning of year		—
Options granted		144,500
Options outstanding, end of year		144,500