Impairment of Long-Lived Assets	6 Months Ended
Nov. 30, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Impairment of Long-Lived Assets	NOTE E – Impairment of Long-Lived Assets Fiscal 2020: During the first quarter of fiscal 2020, the Company committed to plans to sell substantially all of the net assets of its Engineered Cabs business with the exception of the fabricated products facility in Stow, Ohio, and the steel packaging facility in Greensburg, Indiana. As of August 31, 2019, the disposal group met the criteria for classification as assets held for sale and the net assets were recorded at the lower of net book value or fair value, less costs to sell, and presented separately as assets held for sale in our consolidated balance sheet. The book value of the disposal group exceeded its estimated fair market value of $12,860,000 (determined using Level 2 inputs), which resulted in the recording of a $35,194,000 impairment charge during the first quarter of fiscal 2020. Included in the impairment charge were lease ROU assets with a net book value of $905,000 that were deemed fully impaired and written off. On November 1, 2019, the assets of the disposal group were contributed to the Cabs joint venture. For additional information, refer to “NOTE C – Investments in Unconsolidated Affiliates”. The Company also identified an impairment indicator for the long-lived assets of the Engineered Cabs fabricated products business as the planned sale will have an adverse impact on the manner and extent in which these assets are used. As a result, fixed assets with a net book value of $1,469,000 and lease ROU assets with a net book value of $3,938,000 were deemed to be fully impaired and written off during the first quarter ended August 31, 2019.

Impairment of Long-Lived Assets

6 Months Ended

Nov. 30, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

NOTE E – Impairment of Long-Lived Assets

Fiscal 2020: During the first quarter of fiscal 2020, the Company committed to plans to sell substantially all of the net assets of its Engineered Cabs business with the exception of the fabricated products facility in Stow, Ohio, and the steel packaging facility in Greensburg, Indiana. As of August 31, 2019, the disposal group met the criteria for classification as assets held for sale and the net assets were recorded at the lower of net book value or fair value, less costs to sell, and presented separately as assets held for sale in our consolidated balance sheet. The book value of the disposal group exceeded its estimated fair market value of $12,860,000 (determined using Level 2 inputs), which resulted in the recording of a $35,194,000 impairment charge during the first quarter of fiscal 2020. Included in the impairment charge were lease ROU assets with a net book value of $905,000 that were deemed fully impaired and written off. On November 1, 2019, the assets of the disposal group were contributed to the Cabs joint venture. For additional information, refer to “NOTE C – Investments in Unconsolidated Affiliates”. The Company also identified an impairment indicator for the long-lived assets of the Engineered Cabs fabricated products business as the planned sale will have an adverse impact on the manner and extent in which these assets are used. As a result, fixed assets with a net book value of $1,469,000 and lease ROU assets with a net book value of $3,938,000 were deemed to be fully impaired and written off during the first quarter ended August 31, 2019.