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12. Stock-Based Compensation (Tables) | 9 Months Ended
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Jun. 30, 2019
Share-based Payment Arrangement, Noncash Expense [Abstract] |
Stock option activity | The following table summarizes stock option activity for the twelve months ended September 30, 2018 and the nine months ended June 30, 2019:
|  |  |  |  | Weighted |  |  | Weighted |  |  |  |
|  |  |  |  | Average |  |  | Average |  |  |  |
|  | Number of |  |  | Exercise |  |  | Remaining |  |  |  |
|  | Shares |  |  | Price |  |  | Contractual Life |  |  | Intrinsic Value |
Outstanding at September 30, 2017 |  |  | 211,668 |  |  | $ | 13.19 |  |  |  | 3.47 |  |  | $ | 454,417 |
Granted |  |  | 20,000 |  |  |  | 32.24 |  |  |  | 9.02 |  |  |  |  |
Exercised |  |  | – |  |  |  |  |  |  |  |  |  |  |  |  |
Forfeited |  |  | – |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding at September 30, 2018 |  |  | 231,668 |  |  | $ | 14.84 |  |  |  | 3.04 |  |  | $ | 162,500 |
Exercisable at September 30, 2018 |  |  | 190,639 |  |  | $ | 11.89 |  |  |  | 2.08 |  |  | $ | 162,500 |
Outstanding at September 30, 2018 |  |  | 231,668 |  |  | $ | 14.84 |  |  |  | 3.04 |  |  | $ | 162,500 |
Granted |  |  | – |  |  |  |  |  |  |  |  |  |  |  |  |
Exercised |  |  | – |  |  |  |  |  |  |  |  |  |  |  |  |
Forfeited |  |  | (31,250 | ) |  |  |  |  |  |  |  |  |  |  |  |
Outstanding at June 30, 2019 |  |  | 200,418 |  |  | $ | 15.88 |  |  |  | 2.63 |  |  | $ | – |
Exercisable at June 30, 2019 |  |  | 169,820 |  |  | $ | 13.65 |  |  |  | 1.64 |  |  | $ | – |
Stock option exercise price | The exercise price for stock options outstanding and exercisable outstanding at June 30, 2019 is as follows:
Outstanding |  |  | Exercisable |
Number of |  |  | Exercise |  |  | Number of |  |  | Exercise |
Options |  |  | Price |  |  | Options |  |  | Price |
| 25,000 |  |  |  | 7.50 |  |  |  | 25,000 |  |  |  | 7.50 |
| 31,250 |  |  |  | 10.00 |  |  |  | 31,250 |  |  |  | 10.00 |
| 4,167 |  |  |  | 10.86 |  |  |  | 4,167 |  |  |  | 10.86 |
| 4,167 |  |  |  | 10.86 |  |  |  | 4,167 |  |  |  | 10.86 |
| 4,167 |  |  |  | 10.86 |  |  |  | 2,430 |  |  |  | 10.86 |
| 4,167 |  |  |  | 10.86 |  |  |  |  |  |  |  |  |
| 6,250 |  |  |  | 12.50 |  |  |  | 6,250 |  |  |  | 12.50 |
| 6,250 |  |  |  | 15.00 |  |  |  | 6,250 |  |  |  | 15.00 |
| 75,000 |  |  |  | 15.18 |  |  |  | 75,000 |  |  |  | 15.18 |
| 8,000 |  |  |  | 23.41 |  |  |  | 8,000 |  |  |  | 23.41 |
| 8,000 |  |  |  | 27.60 |  |  |  | 8,000 |  |  |  | 27.60 |
| 8,000 |  |  |  | 31.74 |  |  |  |  |  |  |  |  |
| 8,000 |  |  |  | 36.50 |  |  |  |  |  |  |  |  |
| 8,000 |  |  |  | 41.98 |  |  |  |  |  |  |  |  |
| 200,418 |  |  |  |  |  |  |  | 170,514 |  |  |  |  |
Non-vested share activity | The following table summarizes information about the Company’s non-vested shares outstanding as of June 30, 2019 and September 30, 2018:
|  |  |  |  | Average |
|  | Number of |  |  | Grant-Date |
Non-vested Shares |  | Shares |  |  | Fair Value |
Non-vested at September 30, 2017 |  |  | 36,668 |  |  | $ | 17.70 |
Granted |  |  | 20,000 |  |  | $ | 10.14 |
Vested |  |  | (15,639 | ) |  | $ | 15.72 |
Non-vested at September 30, 2018 |  |  | 41,029 |  |  | $ | 12.88 |
Non-vested at September 30, 2018 |  |  | 41,029 |  |  | $ | 12.88 |
Granted |  |  | – |  |  | $ | – |
Vested |  |  | (11,125 | ) |  | $ | 13.88 |
Non-vested at June 30, 2019 |  |  | 29,904 |  |  | $ | 14.14 |
Assumptions used | The assumptions used in calculating the fair value of stock options granted in fiscal 2018 use the Black-Scholes option pricing model for options granted were as follows:
Risk-free interest rate | 1.25%
Expected life of the options | 5 and 10 years
Expected volatility | 107%
Expected dividend yield | 0%

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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + 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 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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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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