Revenue (Tables)

12 Months Ended

Jun. 30, 2021

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, 2021		June 30, 2020		Change
(Dollars in thousands)	Amount		Amount		$			%
Assets:
Unbilled accounts receivable – current (1)	$	12,354	$	11,739		615			5
Interest receivable – current (2)		512		493		19			4
Long-term accounts receivable (3)		4,970		3,810		1,160			30
Interest receivable – non-current (3)		1,083		1,342		(259	)		(19	)
Liabilities:
Customer advances		24,937		22,571		2,366			10
Deferred revenue – current		81,660		83,207		(1,547	)		(2	)
Deferred revenue – non-current		23,685		24,125		(440	)		(2	)

(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 contract services as of June 30, 2021 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 for contracts with an original expected duration of one year or less:

	Fiscal years of revenue recognition
(Dollars in thousands)	2022		2023		2024		Thereafter
Long-term warranty and service	$	33,479	$	23,042	$	10,135	$	9,665