Revenue (Tables)

12 Months Ended

Jun. 30, 2022

Revenue from Contract with Customer [Abstract]

Summary of Contract with Customer, Asset and Liability

Changes in the contract assets and contract liabilities are as follows:

	June 30, 2022		June 30, 2021		Change
(Dollars in thousands)	Amount		Amount		$			%
Assets:
Unbilled accounts receivable – current (1)	$	13,325	$	12,354		971			8
Interest receivable – current (2)		493		512		(19	)		(4	)
Long-term accounts receivable (3)		5,301		4,970		331			7
Interest receivable – non-current (3)		683		1,083		(400	)		(37	)
Liabilities:
Customer advances		25,290		24,937		353			1
Deferred revenue – current		75,375		81,660		(6,285	)		(8	)
Deferred revenue – non-current		24,694		23,685		1,009			4

(1)Included in accounts receivable on consolidated balance sheets

(2)Included in prepaid expenses and other current assets on consolidated balance sheets

(3)Included in other assets on consolidated balance sheets

Schedule of Remaining Performance Obligations related to Warranty

The following table represents the Company's remaining performance obligations related to long-term warranty and non-cancellable post warranty services as of June 30, 2022 and the estimated revenue expected to be recognized (the time bands reflect management’s best estimate of when the Company will transfer control to the customer and may change based on timing of shipment, readiness of customers’ facilities for installation, installation requirements, and availability of products). The Company has elected the practical expedient to not disclose the unsatisfied performance obligations of contracts with an original expected duration of one year or less.

	Fiscal years of revenue recognition
(Dollars in thousands)	2023		2024		2025		Thereafter
Long-term warranty and service	$	30,741	$	20,491	$	9,071	$	8,797