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Calculation of Earnings Per Share - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Nov. 30, 2019 | Dec. 01, 2018 | Nov. 30, 2019 | Dec. 01, 2018
Numerator for Basic and Diluted Earnings Per Share: |  |  |  |
Net (loss) income | $ (622) | $ (304) | $ (465) | $ 127
Undistributed losses, Basic | (1,397) | (1,074) | (2,015) | (1,407)
Undistributed losses, Diluted | $ (1,397) | $ (1,074) | $ (2,015) | $ (1,407)
Denominator for Basic and Diluted Earnings Per Share: |  |  |  |
Effect of dilutive securities dilutive stock options |  |  |  | 163
Weighted Average Number of Shares Outstanding, Diluted | 13,135 | 13,049 | 13,111 | 13,167
Basic |  |  |  |
Numerator for Basic and Diluted Earnings Per Share: |  |  |  |
Net (loss) income | $ (622) | $ (304) | $ (465) | $ 127
Diluted |  |  |  |
Numerator for Basic and Diluted Earnings Per Share: |  |  |  |
Net (loss) income | (622) | (304) | (465) | 127
Common Class B |  |  |  |
Numerator for Basic and Diluted Earnings Per Share: |  |  |  |
Undistributed losses, Basic | (204) | (158) | (295) | (209)
Undistributed losses, Diluted | $ (204) | $ (158) | $ (295) | $ (207)
Denominator for Basic and Diluted Earnings Per Share: |  |  |  |
Weighted Average Number of Shares Outstanding, Basic | 2,097 | 2,097 | 2,097 | 2,114
Weighted Average Number of Shares Outstanding, Diluted | 2,097 | 2,097 | 2,097 | 2,114
Net (loss) income per share: |  |  |  |
Earnings Per Share, Basic | $ (0.04) | $ (0.02) | $ (0.03) | $ 0.01
Earnings Per Share, Diluted | $ (0.04) | $ (0.02) | $ (0.03) | $ 0.01
Common Class B | Basic |  |  |  |
Numerator for Basic and Diluted Earnings Per Share: |  |  |  |
Less dividends | $ 113 | $ 112 | $ 226 | $ 228
Common Class B | Diluted |  |  |  |
Numerator for Basic and Diluted Earnings Per Share: |  |  |  |
Less dividends | 113 | 112 | 226 | 228
Common Stock |  |  |  |
Numerator for Basic and Diluted Earnings Per Share: |  |  |  |
Undistributed losses, Basic | (1,193) | (916) | (1,720) | (1,198)
Undistributed losses, Diluted | $ (1,193) | $ (916) | $ (1,720) | $ (1,200)
Denominator for Basic and Diluted Earnings Per Share: |  |  |  |
Weighted Average Number of Shares Outstanding, Basic | 11,038 | 10,952 | 11,014 | 10,890
Weighted Average Number of Shares Outstanding, Diluted | 11,038 | 10,952 | 11,014 | 11,053
Net (loss) income per share: |  |  |  |
Earnings Per Share, Basic | $ (0.05) | $ (0.02) | $ (0.04) | $ 0.01
Earnings Per Share, Diluted | $ (0.05) | $ (0.02) | $ (0.04) | $ 0.01
Common Stock | Basic |  |  |  |
Numerator for Basic and Diluted Earnings Per Share: |  |  |  |
Less dividends | $ 662 | $ 658 | $ 1,324 | $ 1,306
Common Stock | Diluted |  |  |  |
Numerator for Basic and Diluted Earnings Per Share: |  |  |  |
Less dividends | $ 662 | $ 658 | $ 1,324 | $ 1,306

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