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IMPAIRMENT, RESTRUCTURING AND OTHER CHARGES (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Impairment, Restructuring and Other Charges
Impairment charges									$ 0		$ 1,006
Acquisition-related costs									962	$ 382	288
Employee termination costs									1,416	1,736	1,177
Facility closures/consolidation									3,238	1,539	(33)
Legal costs, net									775	3,909	5,104
Total expensed									6,391	7,566	7,542
Net benefit recognized related to reimbursement from insurance	$ 3,895	$ 1,004	$ 1,026	$ 466	$ 3,200	$ 890	$ 2,257	$ 1,219
Other operational efficiency activities
Impairment, Restructuring and Other Charges
Acquisition-related costs									1,000	400	300
Employee termination costs									1,400	1,700	1,100
Facility closures/consolidation									3,200	1,500
Legal costs, net									800	(3,900)	5,100
Impairment on software assets											1,000
Net benefit recognized related to reimbursement from insurance									6,400	7,600	7,500
Security Division
Impairment, Restructuring and Other Charges
Acquisition-related costs									247	23	232
Employee termination costs									285	849	1,077
Facility closures/consolidation									90	35	(33)
Legal costs, net									53	808
Total expensed									675	1,715	1,276
Healthcare Division
Impairment, Restructuring and Other Charges
Acquisition-related costs										225
Employee termination costs									810	355
Legal costs, net										2,497
Total expensed									810	3,077
Optoelectronics And Manufacturing Division
Impairment, Restructuring and Other Charges
Acquisition-related costs									201	7
Employee termination costs									199	532	100
Facility closures/consolidation									3,148	1,504
Legal costs, net										464
Total expensed									3,548	2,507	100
Corporate
Impairment, Restructuring and Other Charges
Impairment charges											1,006
Acquisition-related costs									514	127	56
Employee termination costs									122
Legal costs, net									722	140	5,104
Total expensed									$ 1,358	$ 267	$ 6,166

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

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Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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