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Summary of Business and Significant Accounting Policies - ESPP and Stock Option Awards (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | ---
Dec. 01, 2023 | Dec. 01, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022
Assumptions |  |  |  |  |  |
Dividend yield |  |  |  |  | 0.00% |
Employee Stock Option |  |  |  |  |  |
Stock-based awards |  |  |  |  |  |
Options granted during period |  |  | 21,300 | 53,200 | 50,400 | 154,067
Options granted during period, weighted-average price (in dollars per share) |  |  | $ 3.16 | $ 4.32 | $ 3.29 | $ 4.79
Total unrecognized compensation cost, net of forfeitures, related to unvested options |  |  | $ 2,700 |  | $ 2,700 |
Weighted average period over which unrecognized compensation is expected to be recognized |  |  |  |  | 1 year |
Issuance of common stock upon exercise of stock options (in shares) |  |  | 122,500 | 121,936 | 123,500 | 129,161
Assumptions |  |  |  |  |  |
Expected volatility |  |  | 53.00% | 64.00% | 54.00% | 65.00%
Average risk-free interest rate |  |  | 4.42% | 4.00% | 4.36% | 3.50%
Expected life (in years) |  |  | 4 years 6 months 21 days | 4 years 6 months 29 days | 4 years 6 months 18 days | 4 years 7 months 9 days
Dividend yield |  |  | 0.00% | 0.00% | 0.00% | 0.00%
Employee Stock Purchase Plan (ESPP) |  |  |  |  |  |
ESPP |  |  |  |  |  |
Percentage of stock price at which stock can be purchased |  |  |  |  | 85.00% |
Purchase period |  |  |  |  | 6 months |
ESPP shares available for issuance |  |  |  |  | 868,129 |
Employee Stock Purchase Plan (ESPP) | Minimum |  |  |  |  |  |
ESPP |  |  |  |  |  |
Percentage of base earnings that can be withheld |  |  |  |  | 1.00% |
Employee Stock Purchase Plan (ESPP) | Maximum |  |  |  |  |  |
ESPP |  |  |  |  |  |
Offering period |  |  |  |  | 27 months |
Percentage of base earnings that can be withheld |  |  |  |  | 15.00% |
ESPP Grants on December 1, 2023 |  |  |  |  |  |
ESPP |  |  |  |  |  |
ESPP purchase rights granted | 87,332 |  |  |  |  |
Stock-based compensation |  |  | $ 34 |  | $ 34 |
ESPP Grants on December 1, 2022 |  |  |  |  |  |
ESPP |  |  |  |  |  |
Stock-based compensation |  |  |  | $ 41 |  | $ 41
ESPP shares issued |  | 88,414 |  |  |  |
Restricted stock units |  |  |  |  |  |
Stock-based awards |  |  |  |  |  |
Weighted average period over which unrecognized compensation is expected to be recognized |  |  |  |  | 10 months 13 days |
Units granted |  |  | 200,821 | 0 | 200,821 | 0
Weighted average grant date fair value |  |  | $ 6.50 |  | $ 6.50 |
Total unrecognized compensation cost, net of forfeitures, related to unvested RSUs |  |  | $ 1,100 |  | $ 1,100 |

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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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