Equity and Stock-Based Compensation (Tables)

12 Months Ended

Sep. 30, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Equity Compensation Plans

Equity compensation plans as of September 30, 2021 are summarized in the table below:

Name of Plan	Shares Authorized		Shares Available for Grant		Options Outstanding		Plan Expiration
2007 Plan		3,000,000		929,820		464,269	Mar. 2024
Non-Employee Directors Stock Option Plan		500,000		84,934		144,000	Mar. 2024
				1,014,754		608,269

Schedule of Fair Value of Stock Option Using Black-Scholes Option Pricing Model

We estimated the fair value of stock option awards on the date of grant using the Black-Scholes option pricing model using the following assumptions:

	Years Ended September 30,
	2021	2020	2019
Risk free interest rate	1%	1%	3%
Expected life	6 years	6 years	6 years
Dividend rate	0%	0%	0%
Volatility	58%	58%	60%

Summary of Stock Option Activity

:

	Years Ended September 30,
	2021					2020					2019
	Options			Weighted Average Exercise Price		Options			Weighted Average Exercise Price		Options			Weighted Average Exercise Price
Outstanding at beginning of period		696,665		$	7.00		1,068,665		$	7.04		1,248,758		$	7.69
Granted		204,000			6.25		32,500			5.34		198,850			5.35
Exercised		(241,320	)		6.40		(160,375	)		5.47		(52,201	)		4.02
Forfeited/expired		(51,076	)		13.01		(244,125	)		7.94		(326,742	)		9.00
Outstanding at end of period		608,269		$	6.48		696,665		$	7.00		1,068,665		$	7.04
Exercisable at end of period		403,853		$	6.87		611,542		$	7.19		842,083		$	7.45
Weighted average grant-date fair value of    options granted during the period	$	3.33				$	2.89				$	3.08

Summary of Stock Options Outstanding and Exercisable

The following table summarizes information for stock options outstanding and exercisable as of September 30, 2021:

	Options Outstanding						Options Exercisable
Range of Exercise Prices	Number Outstanding		Remaining Contractual Life (in years)		Weighted Average Exercise Price Per Share		Number Exercisable		Weighted Average Exercise Price Per Share
2.95-4.90		77,750		6.59	$	4.63		71,084	$	4.61
5.07-5.07		2,800		5.13		5.07		2,800		5.07
5.25-5.25		69,175		4.09		5.25		69,175		5.25
5.26-5.52		88,375		7.56		5.43		42,375		5.50
5.67-5.67		141,500		9.13		5.67		—		—
5.75-7.01		83,250		3.46		6.70		79,000		6.70
7.40-7.98		47,919		5.28		7.51		47,919		7.51
9.98-9.98		67,500		3.14		9.98		67,500		9.98
9.99-10.71		12,000		6.70		10.35		6,000		10.71
11.51-11.51		18,000		9.48		11.51		18,000		11.51
		608,269		6.20	$	6.48		403,853	$	6.87