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STOCK BASED COMPENSATION (Tables)

9 Months Ended

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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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.

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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.

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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.

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