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Stock Option - Activity (Details) - USD ($) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Jun. 30, 2021
2012 Employee Stock Option Plan |  |  |  |  |
Options |  |  |  |  |
Outstanding, beginning of year |  |  | 214,080 | 235,680 | 235,680
Granted | 338,000 | 0 | 338,000 | 0 |
Forfeited/Lapsed |  |  |  | 0 |
Exercised | (23,000) | 0 | (28,000) | 0 |
Outstanding, end of period | 524,080 | 235,680 | 524,080 | 235,680 | 214,080
Exercisable, end of period | 160,576 | 95,600 | 160,576 | 95,600 |
Weighted average exercise price |  |  |  |  |
Weighted average exercise price, bgn |  |  | $ 9.59 | $ 9.42 | $ 9.42
Granted (per share) |  |  | 23.17 |  |
Forfeited/Lapsed (per share) |  |  |  | 0 |
Exercised (per share) |  |  | 5.54 |  |
Weighted average exercise price, end | $ 18.56 | $ 9.42 | 18.56 | 9.42 | $ 9.59
Exercisable, end of period, weighted average exercise price | $ 15.06 | $ 7.33 | 15.06 | $ 7.33 |
Additional disclosures |  |  |  |  |
Weighted average fair value at grant date of options granted |  |  | $ 12.16 |  |
Total intrinsic value of options exercised |  |  | $ 485,000 |  |
Total intrinsic value of options outstanding | $ 3,367,000 | $ 963,000 | 3,367,000 | $ 963,000 |
Total intrinsic value of options exercisable | $ 1,595,000 | $ 590,000 | $ 1,595,000 | $ 590,000 |
2012 Non-Employee Stock Option Plan |  |  |  |  |
Options |  |  |  |  |
Outstanding, beginning of year |  |  | 12,000 | 24,000 | 24,000
Granted | 9,600 | 0 | 9,600 | 0 |
Forfeited/Lapsed |  |  |  | 0 |
Exercised | 0 | 0 | 0 | 0 |
Outstanding, end of period | 21,600 | 24,000 | 21,600 | 24,000 | 12,000
Exercisable, end of period | 11,760 | 17,040 | 11,760 | 17,040 |
Weighted average exercise price |  |  |  |  |
Weighted average exercise price, bgn |  |  | $ 6.55 | $ 5.15 | $ 5.15
Granted (per share) |  |  | 22.93 |  |
Forfeited/Lapsed (per share) |  |  |  | 0 |
Exercised (per share) |  |  | 0 |  |
Weighted average exercise price, end | $ 13.83 | $ 5.15 | 13.83 | 5.15 | $ 6.55
Exercisable, end of period, weighted average exercise price | $ 8.28 | $ 4.54 | 8.28 | $ 4.54 |
Additional disclosures |  |  |  |  |
Weighted average fair value at grant date of options granted |  |  | $ 12.58 |  |
Total intrinsic value of options outstanding | $ 241,000 | $ 191,000 | $ 241,000 | $ 191,000 |
Total intrinsic value of options exercisable | $ 197,000 | $ 146,000 | $ 197,000 | $ 146,000 |
2018 Non-Employee Stock Option Plan |  |  |  |  |
Options |  |  |  |  |
Outstanding, beginning of year |  |  | 70,100 | 96,800 | 96,800
Granted | 23,500 | 0 | 23,500 | 0 |
Forfeited/Lapsed |  |  |  | 0 |
Exercised | (3,000) | 0 | (3,000) | 0 |
Outstanding, end of period | 90,600 | 96,800 | 90,600 | 96,800 | 70,100
Exercisable, end of period | 41,260 | 37,280 | 41,260 | 37,280 |
Weighted average exercise price |  |  |  |  |
Weighted average exercise price, bgn |  |  | $ 11.93 | $ 11.74 | $ 11.74
Granted (per share) |  |  | 22.93 |  |
Forfeited/Lapsed (per share) |  |  |  | 0 |
Exercised (per share) |  |  | 11.68 |  |
Weighted average exercise price, end | $ 14.79 | $ 11.74 | 14.79 | 11.74 | $ 11.93
Exercisable, end of period, weighted average exercise price | $ 12.96 | $ 11.22 | 12.96 | $ 11.22 |
Additional disclosures |  |  |  |  |
Weighted average fair value at grant date of options granted |  |  | $ 12.58 |  |
Total intrinsic value of options exercised |  |  | $ 39,000 |  |
Total intrinsic value of options outstanding | $ 924,000 | $ 202,000 | 924,000 | $ 202,000 |
Total intrinsic value of options exercisable | $ 496,000 | $ 98,000 | $ 496,000 | $ 98,000 |
2020 Non-Employee Stock Option Plan |  |  |  |  |
Options |  |  |  |  |
Outstanding, beginning of year |  |  | 10,000 | 0 | 0
Granted | 16,900 | 0 | 16,900 | 10,000 |
Exercised | 0 | 0 | 0 | 0 |
Outstanding, end of period | 26,900 | 10,000 | 26,900 | 10,000 | 10,000
Exercisable, end of period | 7,380 | 2,000 | 7,380 | 2,000 |
Weighted average exercise price |  |  |  |  |
Weighted average exercise price, bgn |  |  | $ 11.40 | $ 0 | $ 0
Granted (per share) |  |  | 22.93 | 11.40 |
Weighted average exercise price, end | $ 18.64 | $ 11.40 | 18.64 | 11.40 | $ 11.40
Exercisable, end of period, weighted average exercise price | $ 16.68 | $ 11.40 | 16.68 | 11.40 |
Additional disclosures |  |  |  |  |
Weighted average fair value at grant date of options granted |  |  | $ 12.58 | $ 6.10 |
Total intrinsic value of options outstanding | $ 171,000 | $ 17,000 | $ 171,000 | $ 17,000 |
Total intrinsic value of options exercisable | $ 61,000 | $ 3,000 | $ 61,000 | $ 3,000 |

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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + 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=120381028&loc=d3e5070-113901 + Details
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