v3.25.2
Pay vs Performance Disclosure - USD ($)
12 Months Ended
May 31, 2025
May 31, 2024
May 31, 2023
May 31, 2022
May 31, 2021
Pay vs Performance Disclosure          
Pay vs Performance Disclosure, Table
Fiscal Year
Summary Compensation Table Total for the CEO (1)
Compensation Actually Paid to the CEO (3)(4)
Average Summary Compensation Table Total for Non-CEO NEOs (2)
Average Compensation Actually Paid to the Non-CEO NEOs (3)(4)
Total Shareholder Return (5)
Peer Group Total Shareholder Return (5)
Net Income (loss) (in thousands) (6)
Revenue (in thousands) (7)
2025$5,494,284 $6,807,600 $1,466,609 $4,144,464 $44.12 $42.92 $(33,993)$292,498 
2024$5,005,971 $971,112 $1,264,817 $656,573 $61.80 $52.56 $(184,350)$303,914 
2023$3,983,690 $(2,114,483)$914,244 $(45,199)$92.65 $69.71 $(52,441)$338,752 
2022$5,659,727 $4,953,581 $1,303,492 $1,233,726 $192.26 $73.12 $(26,547)$316,219 
2021$4,045,913 $13,883,392 $1,029,527 $2,868,533 $226.44 $124.10 $(31,547)$291,010 
       
Company Selected Measure Name Revenue        
Named Executive Officers, Footnote Mr. Clemmer was the CEO for each of the fiscal years presented. Non-CEO NEOs for fiscal year 2025 were Messrs. Trowbridge, Weiss, and Nighan and Ms. Piccinini. Non-CEO NEOs for fiscal year 2024 were Messrs. Trowbridge, Nighan, and Campbell and Ms. Piccinini. Non-CEO NEOs for fiscal years 2023 and 2022 were Messrs. Trowbridge, Helsel, and Campbell and Ms. Piccinini. Non-CEO NEOs for fiscal year 2021 were Messrs. Trowbridge, Helsel, Campbell and Nighan.        
PEO Total Compensation Amount $ 5,494,284 $ 5,005,971 $ 3,983,690 $ 5,659,727 $ 4,045,913
PEO Actually Paid Compensation Amount $ 6,807,600 971,112 (2,114,483) 4,953,581 13,883,392
Adjustment To PEO Compensation, Footnote Subtractions from, and additions to, total compensation in the Summary Compensation Table ("SCT") by fiscal year to calculate Compensation Actually Paid ("CAP") are as follows:
2025202420232022
CEOAverage of Non-CEO NEOsCEOAverage of Non-CEO NEOsCEOAverage of Non-CEO NEOsCEOAverage of Non-CEO NEOs
Total Compensation from SCT$5,494,284 $1,466,609 $5,005,971 $1,264,817 $3,983,690 $914,244 $5,659,727 $1,303,492 
Subtractions:
SCT Value of Stock and Option Awards$(3,437,078)$(734,299)$(3,399,217)$(592,487)$(3,000,774)$(454,289)$(4,147,712)$(687,958)
Adjustments:
Unvested value at year end of equity granted during the covered fiscal year $3,736,553 $3,217,933 $817,462 $226,197 $658,535 $99,697 $3,289,559 $518,057 
Change from prior year end in fair value of awards granted in any prior fiscal year that are outstanding and unvested at covered year end$1,263,456 $243,529 $(313,264)$(42,700)$(3,867,465)$(612,420)$(1,051,502)$(189,282)
Change as of the vesting date (from the end of the prior fiscal year) in fair value of awards granted in any prior fiscal years for which vesting conditions were satisfied at the end of or during the covered fiscal year $(249,615)$(49,308)$(1,139,840)$(199,254)$111,531 $7,569 $1,203,509 $289,417 
Compensation Actually Paid$6,807,600 $4,144,464 $971,112 $656,573 $(2,114,483)$(45,199)$4,953,581 $1,233,726 
       
Non-PEO NEO Average Total Compensation Amount $ 1,466,609 1,264,817 914,244 1,303,492 1,029,527
Non-PEO NEO Average Compensation Actually Paid Amount $ 4,144,464 656,573 (45,199) 1,233,726 2,868,533
Adjustment to Non-PEO NEO Compensation Footnote Subtractions from, and additions to, total compensation in the Summary Compensation Table ("SCT") by fiscal year to calculate Compensation Actually Paid ("CAP") are as follows:
2025202420232022
CEOAverage of Non-CEO NEOsCEOAverage of Non-CEO NEOsCEOAverage of Non-CEO NEOsCEOAverage of Non-CEO NEOs
Total Compensation from SCT$5,494,284 $1,466,609 $5,005,971 $1,264,817 $3,983,690 $914,244 $5,659,727 $1,303,492 
Subtractions:
SCT Value of Stock and Option Awards$(3,437,078)$(734,299)$(3,399,217)$(592,487)$(3,000,774)$(454,289)$(4,147,712)$(687,958)
Adjustments:
Unvested value at year end of equity granted during the covered fiscal year $3,736,553 $3,217,933 $817,462 $226,197 $658,535 $99,697 $3,289,559 $518,057 
Change from prior year end in fair value of awards granted in any prior fiscal year that are outstanding and unvested at covered year end$1,263,456 $243,529 $(313,264)$(42,700)$(3,867,465)$(612,420)$(1,051,502)$(189,282)
Change as of the vesting date (from the end of the prior fiscal year) in fair value of awards granted in any prior fiscal years for which vesting conditions were satisfied at the end of or during the covered fiscal year $(249,615)$(49,308)$(1,139,840)$(199,254)$111,531 $7,569 $1,203,509 $289,417 
Compensation Actually Paid$6,807,600 $4,144,464 $971,112 $656,573 $(2,114,483)$(45,199)$4,953,581 $1,233,726 
       
Compensation Actually Paid vs. Total Shareholder Return
Comp vs TSR 2025.jpg
(1)TSR represents the value of a $100 investment in common stock, assuming reinvestment of dividends, as measured at each fiscal year end.
       
Compensation Actually Paid vs. Net Income
Comp vs NI 2025.jpg
       
Compensation Actually Paid vs. Company Selected Measure
Comp vs Revenue 2025.jpg
       
Total Shareholder Return Vs Peer Group
Comp vs TSR 2025.jpg
(1)TSR represents the value of a $100 investment in common stock, assuming reinvestment of dividends, as measured at each fiscal year end.
       
Tabular List, Table Relative TSR values versus the RDG SmallCap Medical Devices Index;
EBITDA and EPS; and
The Company Selected Measure is Revenue.
       
Total Shareholder Return Amount $ 44.12 61.80 92.65 192.26 226.44
Peer Group Total Shareholder Return Amount 42.92 52.56 69.71 73.12 124.10
Net Income (Loss) $ (33,993,000) $ (184,350,000) $ (52,441,000) $ (26,547,000) $ (31,547,000)
Company Selected Measure Amount 292,498,000 303,914,000 338,752,000 316,219,000 291,010,000
PEO Name Mr. Clemmer        
Additional 402(v) Disclosure The fair value of each equity award was re-measured on each vesting date and/or year end, as applicable, in accordance with Accounting Standards Codification (ASC) Topic 718. The assumptions used in the valuation of each type of award are summarized below:
Restricted stock units: The fair value of restricted stock units was based on the Company's closing stock price on each measurement date.
Non-qualified stock options: The fair value of non-qualified stock options was determined using a Black-Scholes option pricing model.
Performance unit awards: Performance unit awards are subject to vesting based on the Company's level of attainment of performance targets, as well as a TSR modifier at the end of each performance period that can adjust the aggregate number of shares eligible to vest at the end of the three-year performance period. The fair value for performance unit awards was determined using a Monte Carlo simulation.
Total shareholder return (TSR) is determined based on the value of an initial fixed investment of $100 in common stock on May 31, 2020, assuming the reinvestment of the dividends. The TSR peer group comprises the RDG SmallCap Medical Devices Index.Reflects the dollar amount of net income reported in our audited financial statements for the applicable fiscal year. GAAP Revenue equals Net Revenue, so no reconciliations are required for fiscal years 2025, 2024, 2023, 2022 or 2021. See our 2025 Annual Report on Form 10-K for the year ended May 31, 2025.
       
Measure:: 1          
Pay vs Performance Disclosure          
Name Revenue        
Measure:: 2          
Pay vs Performance Disclosure          
Name Relative TSR values versus the RDG SmallCap Medical Devices Index        
Measure:: 3          
Pay vs Performance Disclosure          
Name EBITDA        
Measure:: 4          
Pay vs Performance Disclosure          
Name EPS        
PEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount $ (3,437,078) $ (3,399,217) $ (3,000,774) $ (4,147,712) $ (2,137,451)
PEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 3,736,553 817,462 658,535 3,289,559 9,414,998
PEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 1,263,456 (313,264) (3,867,465) (1,051,502) 2,574,779
PEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (249,615) (1,139,840) 111,531 1,203,509 (14,847)
Non-PEO NEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (734,299) (592,487) (454,289) (687,958) (357,244)
Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 3,217,933 226,197 99,697 518,057 1,573,581
Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 243,529 (42,700) (612,420) (189,282) 561,569
Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount $ (49,308) $ (199,254) $ 7,569 $ 289,417 $ 61,100