Changes in Accounting Estimates

12 Months Ended

Apr. 30, 2022

Changes in Accounting Estimates.

Changes in Accounting Estimates

18.          Changes in Accounting Estimates

During the year ended April 30, 2022, the Company revised its estimates of the achievement of the performance metrics of the Company’s long term incentive plans, which resulted in a cumulative adjustment to reduce previously recognized compensation expense of $1,602,000. During the years ended April 30, 2022, 2021 and 2020, the Company revised its estimates at completion of various contracts recognized using the over time method, which resulted in cumulative catch up adjustments during the year in which the change in estimate occurred. The change in estimate was a result of the Company changing the total costs required to complete the contracts due to having more accurate cost information as work progressed in subsequent periods on the various contracts. During the year ended April 30, 2022,

the Company revised its estimates of the total expected costs to complete a TMS variant contract. The aggregate impact of these adjustments in contract estimates on revenue related to performance obligations satisfied or partially satisfied in previous periods was a decrease to revenue of approximately $1,124,000. During the year ended April 30, 2021, the Company revised its estimates of the total expected costs to complete a TMS variant contract. The aggregate impact of these adjustments in contract estimates on revenue related to performance obligations satisfied or partially satisfied in previous periods was a decrease to revenue of approximately $1,041,000. During the year ended April 30, 2020, the Company revised its estimates of the total expected costs to complete a TMS contract and a contract associated with a design and development agreement. The aggregate impact of these adjustments in contract estimates on revenue related to performance obligations satisfied or partially satisfied in previous periods was a decrease of approximately $1,403,000 and an increase of approximately $1,099,000, respectively.