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Equity and Stock-Based Compensation (Tables) | 6 Months Ended
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Mar. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Summary of Stock Option Activity | The following table summarizes our stock option activity during the six months ended March 31, 2020:
|  | Options |  |  | Weighted Average Exercise Price |
Outstanding at beginning of period |  |  | 1,068,665 |  |  | $ | 7.04 |
Granted |  |  | 32,500 |  |  |  | 5.34 |
Exercised |  |  | (138,525 | ) |  |  | 5.63 |
Forfeited |  |  | (87,431 | ) |  |  | 6.67 |
Outstanding at end of period |  |  | 875,209 |  |  | $ | 7.23 |
Exercisable at end of period |  |  | 759,420 |  |  | $ | 7.48 |
Weighted average fair value of options granted during the period |  | $ | 2.89 |  |  |  |  |
Schedule of Fair Value of Stock Option Using Black-Scholes Option Pricing Model | The fair value of options was estimated at the applicable grant date using the Black-Scholes option pricing model with the following assumptions:
|  | Six Months Ended March 31, 2020 |
Risk free interest rate |  |  | 1 | %
Expected life |  | 6 years |
Dividend rate |  |  | — | %
Volatility |  |  | 58 | %

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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