Commitments and Contingencies	12 Months Ended
May 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	7. Commitments and Contingencies The Company is involved in environmental remediation and monitoring activities at its Randolph, Wisconsin manufacturing facility and accrues for related costs when such costs are determined to be probable and estimable. The Company currently utilizes a pump and treat remediation strategy, which includes semi-annual monitoring and reporting, consulting, and maintenance of monitoring wells. We expense these annual costs of remediation, which have ranged from $63 to $131 per year over the past five years. The Company’s estimated remaining liability for these costs was $916 at both May 31, 2023 and 2022, measured on an undiscounted basis over an estimated period of 15 years. In fiscal 2019, the Company performed an updated Corrective Measures Study on the site, per a request from the Wisconsin Department of Natural Resources (WDNR), and is currently working with the WDNR regarding potential alternative remediation strategies going forward. The Company believes that the current pump and treat strategy is appropriate for the site. However, the Company initiated a pilot study in fiscal 2022 which chemical reagents were injected into the ground in an attempt to reduce on-site contamination. The study will run over a two year period, with a majority of expenses incurred in fiscal 2022. Testing and treatment costs of $85 were incurred in fiscal 2023. At this time, the outcome of the pilot study is unknown, but a change in the current remediation strategy, depending on the alternative selected, could result in an increase in future costs and ultimately, an increase in the currently recorded liability, with an offsetting charge to operations in the period recorded. The Company has recorded $100 as a current liability, and the remaining $816 is recorded in other non-current liabilities in the consolidated balance sheet as of May 31, 2023. The Company previously disclosed an ongoing investigation by the U.S. Treasury Department’s Office of Foreign Assets Control (OFAC) regarding activities or transactions involving parties located in Iran. In fiscal year 2020, the Company recorded a charge to Other (expense) income and recorded a reserve of $600 to provide for potential fines or penalties on this matter. On March 28, 2023, the Company received a Cautionary Letter from OFAC concluding its investigation without civil monetary penalty or other enforcement action. As the investigation is effectively resolved, the Company reversed a $600 accrual in the fourth quarter of 2023. The Company has agreements with unrelated third parties that provide for the payment of royalties on the sale of certain products. Royalty expense, recorded in sales and marketing, under the terms of these agreements was $3,392, $1,999, and $2,129 for fiscal years 2023, 2022, and 2021, respectively. Some of these agreements provide for guaranteed minimum royalty payments to be paid each fiscal year by the Company for certain technologies. Future minimum royalty payments are as follows: 2024—$112, 2025—$109, 2026—$84, 2027—$84, and 2028—$67. The Company is subject to certain legal and other proceedings in the normal course of business that, in the opinion of management, are not expected to have a material effect on its future results of operations or financial position.

Commitments and Contingencies

12 Months Ended

May 31, 2023

Commitments and Contingencies Disclosure [Abstract]

The Company is involved in environmental remediation and monitoring activities at its Randolph, Wisconsin manufacturing facility and accrues for related costs when such costs are determined to be probable and estimable. The Company currently utilizes a pump and treat remediation strategy, which includes semi-annual monitoring and reporting, consulting, and maintenance of monitoring wells. We expense these annual costs of remediation, which have ranged from $63 to $131 per year over the past five years. The Company’s estimated remaining liability for these costs was $916 at both May 31, 2023 and 2022, measured on an undiscounted basis over an estimated period of 15 years. In fiscal 2019, the Company performed an updated Corrective Measures Study on the site, per a request from the Wisconsin Department of Natural Resources (WDNR), and is currently working with the WDNR regarding potential alternative remediation strategies going forward. The Company believes that the current pump and treat strategy is appropriate for the site. However, the Company initiated a pilot study in fiscal 2022 which chemical reagents were injected into the ground in an attempt to reduce on-site contamination. The study will run over a two year period, with a majority of expenses incurred in fiscal 2022. Testing and treatment costs of $85 were incurred in fiscal 2023. At this time, the outcome of the pilot study is unknown, but a change in the current remediation strategy, depending on the alternative selected, could result in an increase in future costs and ultimately, an increase in the currently recorded liability, with an offsetting charge to operations in the period recorded. The Company has recorded $100 as a current liability, and the remaining $816 is recorded in other non-current liabilities in the consolidated balance sheet as of May 31, 2023.

The Company previously disclosed an ongoing investigation by the U.S. Treasury Department’s Office of Foreign Assets Control (OFAC) regarding activities or transactions involving parties located in Iran. In fiscal year 2020, the Company recorded a charge to Other (expense) income and recorded a reserve of $600 to provide for potential fines or penalties on this matter. On March 28, 2023, the Company received a Cautionary Letter from OFAC concluding its investigation without civil monetary penalty or other enforcement action. As the investigation is effectively resolved, the Company reversed a $600 accrual in the fourth quarter of 2023.

The Company has agreements with unrelated third parties that provide for the payment of royalties on the sale of certain products. Royalty expense, recorded in sales and marketing, under the terms of these agreements was $3,392, $1,999, and $2,129 for fiscal years 2023, 2022, and 2021, respectively. Some of these agreements provide for guaranteed minimum royalty payments to be paid each fiscal year by the Company for certain technologies. Future minimum royalty payments are as follows: 2024—$112, 2025—$109, 2026—$84, 2027—$84, and 2028—$67.

The Company is subject to certain legal and other proceedings in the normal course of business that, in the opinion of management, are not expected to have a material effect on its future results of operations or financial position.