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Summary of Quarterly Data (Unaudited) | 12 Months Ended
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May 31, 2021
Quarterly Financial Information [Text Block] |
11. | Summary of Quarterly Data (Unaudited)
|  | Quarter Ended |
(in thousands, except per share) |  | August 2020 |  |  | November 2020 |  |  | February 2021 |  |  | May 2021 |
Total Revenue |  | $ | 109,325 |  |  | $ | 115,000 |  |  | $ | 116,709 |  |  | $ | 127,425 |
Gross Margin |  |  | 50,302 |  |  |  | 53,214 |  |  |  | 53,849 |  |  |  | 57,691 |
Net income |  |  | 15,860 |  |  |  | 15,885 |  |  |  | 13,377 |  |  |  | 15,760 |
Basic net income per share |  | $ | 0.15 |  |  | $ | 0.15 |  |  | $ | 0.13 |  |  | $ | 0.15 |
Diluted net income per share |  | $ | 0.15 |  |  | $ | 0.15 |  |  | $ | 0.12 |  |  | $ | 0.15 |
|  | Quarter Ended |
(in thousands, except per share) |  | August 2019 |  |  | November 2019 |  |  | February 2020 |  |  | May 2020 |
Total Revenue |  | $ | 101,424 |  |  | $ | 107,803 |  |  | $ | 99,869 |  |  | $ | 109,074 |
Gross Margin |  |  | 48,194 |  |  |  | 51,026 |  |  |  | 45,330 |  |  |  | 51,729 |
Net income |  |  | 14,652 |  |  |  | 16,276 |  |  |  | 12,200 |  |  |  | 16,347 |
Basic net income per share |  | $ | 0.14 |  |  | $ | 0.15 |  |  | $ | 0.12 |  |  | $ | 0.15 |
Diluted net income per share |  | $ | 0.14 |  |  | $ | 0.15 |  |  | $ | 0.11 |  |  | $ | 0.15 |
Quarterly net income per share is based on weighted-average shares outstanding and potentially dilutive stock options for the specific period and as a result, will not necessarily aggregate to total net income per share as computed for the year as disclosed in the consolidated statements of income.

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
Name: | us-gaap_QuarterlyFinancialInformationTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration