Equity and Stock-Based Compensation (Tables)

12 Months Ended

Sep. 30, 2020

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Equity Compensation Plans

Equity compensation plans as of September 30, 2020 are summarized in the table below:

Name of Plan	Shares Authorized		Shares Available for Grant		Options Outstanding		Plan Expiration
2007 Employee Stock Incentive Plan		3,000,000		1,083,744		491,648	Mar. 2024
Non-Employee Directors Stock Option Plan		500,000		83,934		205,017	Mar. 2024
				1,167,678		696,665

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

We estimate 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,
	2020	2019	2018
Risk free interest rate	1%	3%	3%
Expected life	6 years	6 years	6 years
Dividend rate	0%	0%	0%
Volatility	58%	60%	59%

Summary of Stock Option Transactions and Options Outstanding

Stock option transactions and the options outstanding are summarized as follows:

	Years Ended September 30,
	2020					2019					2018
	Options			Weighted Average Exercise Price		Options			Weighted Average Exercise Price		Options			Weighted Average Exercise Price
Outstanding at beginning of period		1,068,665		$	7.04		1,248,758		$	7.69		1,560,441		$	7.95
Granted		32,500			5.34		198,850			5.35		44,000			7.40
Exercised		(160,375	)		5.47		(52,201	)		4.02		(277,154	)		6.71
Forfeited/expired		(244,125	)		7.94		(326,742	)		9.00		(78,529	)		16.12
Outstanding at end of period		696,665		$	7.00		1,068,665		$	7.04		1,248,758		$	7.69
Exercisable at end of period		611,542		$	7.19		842,083		$	7.45		1,014,300		$	7.93
Weighted average grant-date fair value of    options granted during the period	$	2.89				$	3.08				$	4.20

Summary of Stock Options Outstanding and Exercisable

The following table summarizes information for stock options outstanding and exercisable as of September 30, 2020:

	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
2.95-4.77		83,500		5.01	$	4.12		70,168	$	4.00
4.85-5.07		59,350		7.43		4.95		53,100		4.93
5.25-5.25		85,912		4.81		5.25		85,912		5.25
5.40-5.40		6,000		5.29		5.40		6,000		5.40
5.52-5.52		100,000		6.80		5.52		49,625		5.52
5.75-6.60		30,500		7.23		5.99		22,000		5.75
7.01-7.01		70,000		3.00		7.01		70,000		7.01
7.40-7.98		123,767		3.45		7.76		117,101		7.78
8.20-9.94		17,935		1.63		9.31		17,935		9.31
9.98-22.26		119,701		3.21		11.72		119,701		11.72
		696,665		4.67	$	7.00		611,542	$	7.19