Equity and Stock-Based Compensation (Tables)

12 Months Ended

Sep. 30, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Equity Compensation Plans

Equity compensation plans as of September 30, 2019 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		856,453		879,314	Mar. 2024
Non-Employee Directors Stock Option Plan		500,000		99,600		189,351	Mar. 2020
				956,053		1,068,665

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,
	2019	2018	2017
Risk free interest rate	3%	3%	2%
Expected life	6 years	6 years	6 years
Dividend rate	0%	0%	0%
Volatility	60%	59%	63%

Summary of Stock Option Transactions and Options Outstanding

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

	Years Ended September 30,
	2019					2018					2017
	Options			Weighted Average Exercise Price		Options			Weighted Average Exercise Price		Options			Weighted Average Exercise Price
Outstanding at beginning of period		1,248,758		$	7.69		1,560,441		$	7.95		1,841,567		$	8.15
Granted		198,850			5.35		44,000			7.40		145,000			5.23
Exercised		(52,201	)		4.02		(277,154	)		6.71		(317,986	)		6.30
Forfeited/expired		(326,742	)		9.00		(78,529	)		16.12		(108,140	)		12.71
Outstanding at end of period		1,068,665		$	7.04		1,248,758		$	7.69		1,560,441		$	7.95
Exercisable at end of period		842,083		$	7.45		1,014,300		$	7.93		1,055,865		$	8.58
Weighted average grant-date fair value of    options granted during the period	$	3.08				$	4.20				$	3.04

Summary of Stock Options Outstanding and Exercisable

The following table summarizes information for stock options outstanding and exercisable as of September 30, 2019:

	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
2.95-4.85		116,430		6.22	$	3.95		91,430	$	3.73
4.87-5.07		60,750		6.94		5.02		45,750		5.00
5.25-5.25		168,674		4.12		5.25		147,424		5.25
5.40-5.40		6,000		6.29		5.40		6,000		5.40
5.52-5.52		152,000		9.16		5.52		—		—
5.75-6.15		68,469		3.50		5.96		68,469		5.96
7.01-7.01		133,250		2.72		7.01		133,250		7.01
7.15-7.98		143,976		4.09		7.75		130,644		7.79
8.20-9.94		18,428		2.59		9.33		18,428		9.33
9.98-22.26		200,688		3.44		11.79		200,688		11.79
		1,068,665		4.87	$	7.04		842,083	$	7.45