The Company and its Significant Accounting Policies (Policies)	9 Months Ended
Mar. 31, 2025
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Basis of Presentation	Basis of Presentation The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany transactions and balances have been eliminated in consolidation. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles (“U.S. GAAP”), pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Certain information and note disclosures have been condensed or omitted pursuant to such rules and regulations. The unaudited condensed consolidated financial statements have been prepared on the same basis as the annual financial statements and, in the opinion of management, reflect all adjustments, which include only normal recurring adjustments, necessary for a fair presentation of the periods presented. The results for the three and nine months ended March 31, 2025, are not necessarily indicative of the results to be expected for the fiscal year ending June 30, 2025, or for any other future interim period or fiscal year. These unaudited condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and accompanying notes for the fiscal year ended June 30, 2024, included in the Company’s Annual Report on Form 10-K filed with the SEC on September 19, 2024.
Reclassifications	Reclassifications Amounts in the prior year unaudited condensed financial statements and notes to unaudited condensed consolidated financial statements have been reclassified to conform to current year presentation.
Risks and Uncertainties	Risks and Uncertainties The Company is subject to risks and uncertainties caused, directly or indirectly, by events with significant geopolitical and macroeconomic impacts, including, but not limited to, inflation; actions taken to counter inflation, including high interest rates; foreign currency exchange rate fluctuations; uncertainty and volatility in the banking and financial services sector; tightening credit markets; geopolitical concerns, such as the Russia-Ukraine and Middle East conflicts and increasing tension between China and the U.S., including with respect to Taiwan; uncertainty caused by the China anti-corruption campaign and timing of the China stimulus program; changes in government administration policy positions; recent executive orders to impose new tariffs on global imports and uncertainties regarding impact, retaliations and further escalation, including against other countries; and other factors that may emerge. The Company is also continuing to navigate supply chain and inflation challenges, and adverse foreign currency exchange rate fluctuations, all of which continues to be a significant headwind that affects the Company’s results of operations. The Company expects that the business of its customers and its own business will continue to be adversely impacted, directly or indirectly, by these macroeconomic and geopolitical issues. In addition, ongoing supply chain challenges and logistics costs, including difficulties in obtaining a sufficient supply of component materials and increased component costs, have adversely affected the Company's gross margins and net income (loss), and the Company’s current expectations are that gross margins and net income (loss) will continue to be adversely affected by increased material costs and freight and logistic expenses through calendar year 2025. In addition, the Company expects inflation and the ongoing supply chain challenges and logistics costs to impact its cash from operations through calendar year 2025. In addition, reduced budgets and lower capital deployment priority for radiotherapy equipment, along with longer customer installation timelines, in the United States have negatively impacted net revenue since fiscal year 2024, and the Company expects this will continue to have an impact through fiscal year 2026. The extent of the ongoing impact of these macroeconomic events on our business, our markets and on global economic activity, however, is uncertain and the related financial impact cannot be reasonably estimated with any certainty at this time. The Company’s past results may not be indicative of its future performance, and historical trends, including conversion of backlog to revenue, income (loss) from operations, net income (loss), net income (loss) per share and cash flows may differ materially. The Company continues to critically review its liquidity and anticipated capital requirements in light of the significant uncertainty created by geopolitical and macroeconomic conditions. Based on the Company’s cash and cash equivalents balance, available debt facilities, current business plan and revenue prospects, the Company believes that it will have sufficient cash resources and anticipated cash flows to fund its operations for at least the next 12 months. The Company, however, is unable to predict with certainty the impact of geopolitical and macroeconomic conditions, including its effect on the global supply chain, inflation and foreign currency exchange rates, will have on its ability to maintain compliance with the debt covenants contained in the credit agreement (the “Credit Agreement”) related to its term loan and revolving credit facility (the "Credit Facilities"), including financial covenants regarding the consolidated fixed charge coverage ratio and consolidated senior net leverage ratio, as well as its ability to refinance its existing debt. Failing to comply with the covenants to the Credit Agreement, as amended, could adversely affect the Company’s ability to finance its future operations or capital needs, withstand a future downturn in its business or the economy in general, engage in business activities, including future opportunities that may be in its interest, and plan for or react to market conditions or otherwise execute its business strategies. The Company’s ability to comply with the covenants and other terms governing the Credit Facilities will depend in part on its future operating performance. In addition, because substantially all of the Company’s assets are pledged as a security under the Credit Facilities, if the Company is not able to cure any default or repay outstanding borrowings, such assets are subject to the risk of foreclosure by the Company’s lenders. Failure to meet the covenant requirements in the future could cause the Company to be in default and the maturity of the related debt could be accelerated and become immediately payable. This may require the Company to obtain waivers or additional amendments to the Credit Agreement in order to maintain compliance and there can be no certainty that any such waiver or amendment will be available, or what the cost of such waiver or amendment, if obtained, would be. If the Company is unable to obtain necessary waivers or amendments and the debt under such credit facility is accelerated, the Company would be required to obtain replacement financing at prevailing market rates, which may not be favorable to the Company. There is no guarantee that the Company would be able to satisfy its obligations if any of its indebtedness is accelerated. In addition, the Credit Facilities will mature on May 6, 2026 and the Company's outstanding 3.75% Convertible Senior Notes (the "Notes") will mature on June 1, 2026, both of which will need to be paid or refinanced by maturity. On the maturity date, the Company will be required to pay $50.0 million on its term loan facility, any unpaid balance on its revolving credit facility and $100.0 million on the Notes. If the Company is unable to repay or refinance the amounts outstanding under the Credit Facilities and the amounts due on the Notes by the time such amounts become current on May 6, 2025 and June 1, 2025, respectively, or if the Company does not have committed financing or available liquidity to meet such debt obligations if they were to become due in accordance with their current terms, the Company's ability to continue as a going concern may be adversely affected. If the Company is unable to refinance its debt prior to such debt becoming current, it could significantly reduce the Company’s cash as well as its ability to continue to support its business growth and to respond to business challenges, and the Company’s business and ability to continue as a going concern may be adversely affected.
Use of Estimates	Use of Estimates The preparation of unaudited condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, expenses, and related disclosures at the date of the financial statements. The Company assessed certain accounting matters that generally require consideration of forecasted financial information in context with the information reasonably available to the Company. Actual results could differ materially from those estimates.
Significant Accounting Policies	Significant Accounting Policies There have been no material changes in the Company’s significant accounting policies during the nine months ended March 31, 2025, compared to the significant accounting policies described in its Annual Report on Form 10-K for the fiscal year ended June 30, 2024.
Accounting Pronouncements	Accounting Pronouncements - Adopted In November 2023, the FASB issued ASU 2023-07 to improve reportable segment disclosures. The ASU is intended to improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant expenses. The ASU requires disclosures to include significant segment expenses that are regularly provided to the chief operating decision maker (“CODM”), a description of other segment items by reportable segment, and any additional measures of a segment's profit or loss used by the CODM when deciding how to allocate resources. The ASU also requires all annual disclosures to be disclosed in interim periods. The update will be effective for annual periods beginning after December 15, 2023 and interim periods within annual periods beginning after December 15, 2024. The Company adopted ASU 2023-07 on July 1, 2024 and will begin to make disclosures in its Annual Report on Form 10-K for the period ended June 30, 2025 financial statements. The Company assessed the impact of this update and expects it will not have a material impact on its consolidated financial statement disclosure requirements.
Accounting Pronouncements Not Yet Effective
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Accounting Pronouncements	Accounting Pronouncements - Not Yet Effective In November 2024, the Financial Accounting Standards Board (“FASB”) issued accounting standard update (“ASU”) 2024-03 requiring additional disclosure of the nature of expenses included in the income statement. The new standard requires disclosures about specific types of expenses included in the expense captions presented on the face of the income statement as well as disclosures about selling expenses. The update is effective for annual periods beginning after December 15, 2026. The Company plans to adopt ASU 2024-03 on July 1, 2027. The requirements will be applied prospectively with the option for retrospective application. Early adoption is permitted. The Company is currently assessing the impact of adopting the updated provisions. In December 2023, the FASB issued ASU 2023-09 to improve the transparency and usefulness of income tax disclosures. The accounting standard expands disclosures to the entity’s income tax rate reconciliation table and requires cash taxes paid disaggregated by jurisdiction. These changes will be applied on a prospective basis. The update is effective for annual periods beginning after December 15, 2024, with early adoption permitted. The Company plans to adopt ASU 2023-09 on July 1, 2025. The ASU requires retrospective application to all prior periods presented in the financial statements. The Company is currently assessing the timing and impact of adopting the updated provisions.

The Company and its Significant Accounting Policies (Policies)

9 Months Ended

Mar. 31, 2025

Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]

The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany transactions and balances have been eliminated in consolidation.

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles (“U.S. GAAP”), pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Certain information and note disclosures have been condensed or omitted pursuant to such rules and regulations. The unaudited condensed consolidated financial statements have been prepared on the same basis as the annual financial statements and, in the opinion of management, reflect all adjustments, which include only normal recurring adjustments, necessary for a fair presentation of the periods presented. The results for the three and nine months ended March 31, 2025, are not necessarily indicative of the results to be expected for the fiscal year ending June 30, 2025, or for any other future interim period or fiscal year.

These unaudited condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and accompanying notes for the fiscal year ended June 30, 2024, included in the Company’s Annual Report on Form 10-K filed with the SEC on September 19, 2024.

Reclassifications

Amounts in the prior year unaudited condensed financial statements and notes to unaudited condensed consolidated financial statements have been reclassified to conform to current year presentation.

Risks and Uncertainties

The Company is subject to risks and uncertainties caused, directly or indirectly, by events with significant geopolitical and macroeconomic impacts, including, but not limited to, inflation; actions taken to counter inflation, including high interest rates; foreign currency exchange rate fluctuations; uncertainty and volatility in the banking and financial services sector; tightening credit markets; geopolitical concerns, such as the Russia-Ukraine and Middle East conflicts and increasing tension between China and the U.S., including with respect to Taiwan; uncertainty caused by the China anti-corruption campaign and timing of the China stimulus program; changes in government administration policy positions; recent executive orders to impose new tariffs on global imports and uncertainties regarding impact, retaliations and further escalation, including against other countries; and other factors that may emerge. The Company is also continuing to navigate supply chain and inflation challenges, and adverse foreign currency exchange rate fluctuations, all of which continues to be a significant headwind that affects the Company’s results of operations.

The Company expects that the business of its customers and its own business will continue to be adversely impacted, directly or indirectly, by these macroeconomic and geopolitical issues. In addition, ongoing supply chain challenges and logistics costs, including difficulties in obtaining a sufficient supply of component materials and increased component costs, have adversely affected the Company's gross margins and net income (loss), and the Company’s current expectations are that gross margins and net income (loss) will continue to be adversely affected by increased material costs and freight and logistic expenses through calendar year 2025. In addition, the Company expects inflation and the ongoing supply chain challenges and logistics costs to impact its cash from operations through calendar year 2025. In addition, reduced budgets and lower capital deployment priority for radiotherapy equipment, along with longer customer installation timelines, in the United States have negatively impacted net revenue since fiscal year 2024, and the Company expects this will continue to have an impact through fiscal year 2026. The extent of the ongoing impact of these macroeconomic events on our business, our markets and on global economic activity, however, is uncertain and the related financial impact cannot be reasonably estimated with any certainty at this time. The Company’s past results may not be indicative of its future performance, and historical trends, including conversion of backlog to revenue, income (loss) from operations, net income (loss), net income (loss) per share and cash flows may differ materially.

The Company continues to critically review its liquidity and anticipated capital requirements in light of the significant uncertainty created by geopolitical and macroeconomic conditions. Based on the Company’s cash and cash equivalents balance, available debt facilities, current business plan and revenue prospects, the Company believes that it will have sufficient cash resources and anticipated cash flows to fund its operations for at least the next 12 months. The Company, however, is unable to predict with certainty the impact of geopolitical and macroeconomic conditions, including its effect on the global supply chain, inflation and foreign currency exchange rates, will have on its ability to maintain compliance with the debt covenants contained in the credit agreement (the “Credit Agreement”) related to its term loan and revolving credit facility (the "Credit Facilities"), including financial covenants regarding the consolidated fixed charge coverage ratio and consolidated senior net leverage ratio, as well as its ability to refinance its existing debt.

Failing to comply with the covenants to the Credit Agreement, as amended, could adversely affect the Company’s ability to finance its future operations or capital needs, withstand a future downturn in its business or the economy in general, engage in business activities, including future opportunities that may be in its interest, and plan for or react to market conditions or otherwise execute its business strategies. The Company’s ability to comply with the covenants and other terms governing the Credit Facilities will depend in part on its future operating performance. In addition, because substantially all of the Company’s assets are pledged as a security under the Credit Facilities, if the Company is not able to cure any default or repay outstanding borrowings, such assets are subject to the risk of foreclosure by the Company’s lenders. Failure to meet the covenant requirements in the future could cause the Company to be in default and the maturity of the related debt could be accelerated and become immediately payable. This may require the Company to obtain waivers or additional amendments to the Credit Agreement in order to maintain compliance and there can be no certainty that any such waiver or amendment will be available, or what the cost of such waiver or amendment, if obtained, would be. If the Company is unable to obtain necessary waivers or amendments and the debt under such credit facility is accelerated, the Company would be required to obtain replacement financing at prevailing market rates, which may not be favorable to the Company. There is no guarantee that the Company would be able to satisfy its obligations if any of its indebtedness is accelerated.

In addition, the Credit Facilities will mature on May 6, 2026 and the Company's outstanding 3.75% Convertible Senior Notes (the "Notes") will mature on June 1, 2026, both of which will need to be paid or refinanced by maturity. On the maturity date, the Company will be required to pay $50.0 million on its term loan facility, any unpaid balance on its revolving credit facility and $100.0 million on the Notes. If the Company is unable to repay or refinance the amounts outstanding under the Credit Facilities and the amounts due on the Notes by the time such amounts become current on May 6, 2025 and June 1, 2025, respectively, or if the Company does not have committed financing or available liquidity to meet such debt obligations if they were to become due in accordance with their current terms, the Company's ability to continue as a going concern may be adversely affected. If the Company is unable to refinance its debt prior to such debt becoming current, it could significantly reduce the Company’s cash as well as its ability to continue to support its business growth and to respond to business challenges, and the Company’s business and ability to continue as a going concern may be adversely affected.

Use of Estimates

The preparation of unaudited condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, expenses, and related disclosures at the date of the financial statements. The Company assessed certain accounting matters that generally require consideration of forecasted financial information in context with the information reasonably available to the Company. Actual results could differ materially from those estimates.

Significant Accounting Policies

There have been no material changes in the Company’s significant accounting policies during the nine months ended March 31, 2025, compared to the significant accounting policies described in its Annual Report on Form 10-K for the fiscal year ended June 30, 2024.

Accounting Pronouncements

Accounting Pronouncements - Adopted

In November 2023, the FASB issued ASU 2023-07 to improve reportable segment disclosures. The ASU is intended to improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant expenses. The ASU requires disclosures to include significant segment expenses that are regularly provided to the chief operating decision maker (“CODM”), a description of other segment items by reportable segment, and any additional measures of a segment's profit or loss used by the CODM when deciding how to allocate resources. The ASU also requires all annual disclosures to be disclosed in interim periods. The update will be effective for annual periods beginning after December 15, 2023 and interim periods within annual periods beginning after December 15, 2024. The Company adopted ASU 2023-07 on July 1, 2024 and will begin to make disclosures in its Annual

Report on Form 10-K for the period ended June 30, 2025 financial statements. The Company assessed the impact of this update and expects it will not have a material impact on its consolidated financial statement disclosure requirements.

Accounting Pronouncements Not Yet Effective

Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]

Accounting Pronouncements

Accounting Pronouncements - Not Yet Effective

In November 2024, the Financial Accounting Standards Board (“FASB”) issued accounting standard update (“ASU”) 2024-03 requiring additional disclosure of the nature of expenses included in the income statement. The new standard requires disclosures about specific types of expenses included in the expense captions presented on the face of the income statement as well as disclosures about selling expenses. The update is effective for annual periods beginning after December 15, 2026. The Company plans to adopt ASU 2024-03 on July 1, 2027. The requirements will be applied prospectively with the option for retrospective application. Early adoption is permitted. The Company is currently assessing the impact of adopting the updated provisions.

In December 2023, the FASB issued ASU 2023-09 to improve the transparency and usefulness of income tax disclosures. The accounting standard expands disclosures to the entity’s income tax rate reconciliation table and requires cash taxes paid disaggregated by jurisdiction. These changes will be applied on a prospective basis. The update is effective for annual periods beginning after December 15, 2024, with early adoption permitted. The Company plans to adopt ASU 2023-09 on July 1, 2025. The ASU requires retrospective application to all prior periods presented in the financial statements. The Company is currently assessing the timing and impact of adopting the updated provisions.