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STOCKHOLDERS' EQUITY (Tables)

12 Months Ended

Jun. 30, 2023

STOCKHOLDERS' EQUITY

Schedule of stock-based compensation expense in the consolidated statements of operations

We recorded stock-based compensation expense in the consolidated statements of operations as follows (in thousands):

​

​	​	​	​	​	​	​	​	​	​
​		2021			2022			2023
Cost of goods sold	​	$	760	​	$	812	​	$	911
Selling, general and administrative	​		25,457	​		26,749	​		27,716
Research and development	​		554	​		511	​		497
Stock-based compensation expense	​	$	26,771	​	$	28,072	​	$	29,124

Schedule of weighted average assumptions used to determine the fair value calculations for stock options issued

​

​	​	​	​	​	​	​	​
​		2021		2022		2023
Expected dividend		—	​	—	​	—	​
Risk-free interest rate		0.4	%	1.2	%	3.9	%
Expected volatility		26.0	%	31.0	%	31.0	%
Expected holding period (in years)		4.5	​	4.5	​	4.5	​

Schedule of stock option activity

The following summarizes stock option activity for fiscal years 2021, 2022 and 2023:

​

​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	Weighted-		​	​	​	​	​
​	​	​	​	Average		​	Weighted-Average	​	Aggregate
​	​	Number of	​	Exercise		​	Remaining Contractual	​	Intrinsic Value
​		Options		Price			Term		(in thousands)
Outstanding at June 30, 2020		326,304		$	44.41	​	​	​	​	​
Granted		22,171		​	82.17	​	​	​	​	​
Exercised		(88,657)		​	35.19	​	​	​	​	​
Expired or forfeited		(4,598)		​	80.46	​	​	​	​	​
Outstanding at June 30, 2021		255,220		$	50.24	​	​	​	​	​
Granted		22,954		​	96.38	​	​	​	​	​
Exercised		(166,629)		​	35.09	​	​	​	​	​
Expired or forfeited		(900)		​	73.99	​	​	​	​	​
Outstanding at June 30, 2022		110,645		$	82.43		​	​	​	​
Granted		23,351	​	​	87.90	​	​	​	​	​
Exercised		(47,354)	​	​	77.42	​	​	​	​	​
Expired or forfeited		(2,965)	​	​	74.06	​	​	​	​	​
Outstanding at June 30, 2023		83,677	​	$	87.09	​	7.1 years	​	$	2,572
Exercisable at June 30, 2023	​	38,977	​	$	83.79		5.1 years	​	$	1,327

Schedule of stock option activity

​

​	​	​	​	​	​
​	​	​	​	Weighted-
​	​	​	​	Average
​		Shares		Fair Value
Nonvested at June 30, 2020		423,590	​	$	88.68
Granted		339,311	​		80.40
Vested		(313,892)	​		86.12
Forfeited		(13,084)	​		85.78
Nonvested at June 30, 2021		435,925	​	$	84.16
Granted		334,435	​		90.31
Vested		(337,442)	​		82.66
Forfeited		(5,471)	​		83.66
Nonvested at June 30, 2022		427,447	​	$	90.17
Granted		357,475	​	​	87.90
Vested		(313,862)	​	​	96.36
Forfeited		(15,545)	​	​	88.42
Nonvested at June 30, 2023		455,515	​	$	85.15

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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.

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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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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.

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