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STOCK BASED COMPENSATION (Tables) | 9 Months Ended
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Mar. 31, 2021
Share-based Payment Arrangement [Abstract] |
Stock-based compensation expense | The following table shows total stock-based compensation expense included in the Consolidated Statements of Operations and Comprehensive Income for the three and nine months ended March 31, 2021 and 2020 (in thousands):
| Three Months Ended March 31, |  | Nine Months Ended March 31,
| 2021 |  | 2020 |  | 2021 |  | 2020
Cost of revenues | $ | 23 |  |  | $ | 29 |  |  | $ | 80 |  |  | $ | 94 |
Research and development | 538 |  |  | 499 |  |  | 1,560 |  |  | 1,507 |
Sales, general and administrative | 214 |  |  | 197 |  |  | 625 |  |  | 543 |
| $ | 775 |  |  | $ | 725 |  |  | $ | 2,265 |  |  | $ | 2,144 |
Summary of option activity for the company's stock incentive plans | The following is a summary of option activity for the Company’s stock incentive plans for the nine months ended March 31, 2021:
| Common Stock Options Outstanding
| Number of Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Life (Years) |  | Aggregate Intrinsic Value (In thousands)
Balance, June 30, 2020 | 22,265 |  |  | $ | 11.07 |  |  | 2.16 |  | $ | 3,640 |
Exercised | (8,950) |  |  | $ | 10.20 |  |  |  |  |
Forfeitures and cancellations | (6) |  |  | $ | 2.90 |  |  |  |  |
Balance, March 31, 2021 | 13,309 |  |  | $ | 11.65 |  |  | 1.56 |  | $ | 3,815 |
Vested as of March 31, 2021 | 13,309 |  |  | $ | 11.65 |  |  | 1.56 |  | $ | 3,815 |
Vested and exercisable as of March 31, 2021 | 13,309 |  |  | $ | 11.65 |  |  | 1.56 |  | $ | 3,815 |
Activity of RSUs | The following table summarizes the activity of the RSUs made by the Company:
| Number of Shares |  | Weighted Average Grant Date Fair Value Per Share
Non-vested RSUs, June 30, 2020 | 82,571 |  |  | $ | 99.57 |
RSUs granted | 14,880 |  |  | $ | 249.02 |
RSUs vested | (33,335) |  |  | $ | 86.07 |
RSUs canceled | (2,001) |  |  | $ | 105.82 |
Non-vested RSUs, March 31, 2021 | 62,115 |  |  | $ | 142.42 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + 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 (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&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=120381028&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=120381028&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=120381028&loc=d3e5070-113901 + Details
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