Marketable Securities and Other Investments	6 Months Ended
Marketable Securities and Other Investments	Sep. 30, 2024
Marketable Securities [Abstract]
Marketable Securities and Other Investments	Marketable Securities and Other Investments In accordance with ASU 2016-01, “Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities,” all equity investments in unconsolidated entities (other than those accounted for using the equity method of accounting) are measured at fair value through earnings. The Company's marketable securities are recorded at their fair value, with unrealized changes in market value realized within Investment (income) loss on the Condensed Consolidated Statements of Operations. The impact on earnings for unrealized gains and losses was a gain of $234,000 and a loss of $349,000 in the three months ended September 30, 2024 and September 30, 2023, respectively, and a gain of $236,000 and a loss of $270,000 in the six months ended September 30, 2024 and September 30, 2023, respectively. Consistent with prior periods, the estimated fair value is based on quoted market prices at the balance sheet dates. The cost of securities sold is based on the specific identification method. Interest and dividend income are included in Investment (income) loss in the Condensed Consolidated Statements of Operations. Marketable securities are carried as long-term assets since they are held for the settlement of the Company’s general and product liability insurance claims filed through CM Insurance Company, Inc. ("CMIC"), the Company's a wholly-owned captive insurance subsidiary. The marketable securities are not available for general working capital purposes. Net realized gains related to sales of marketable securities were $57,000 in the three and six months ended September 30, 2024 and not material in the three and six months ended September 30, 2023. The Company owns a 49% ownership interest in Eastern Morris Cranes Company Limited ("EMC"), a limited liability company organized and existing under the laws and regulations of the Kingdom of Saudi Arabia. The Company's ownership represents an equity investment in a strategic customer of Stahl Cranesystems GmbH ("STAHL") serving the Kingdom of Saudi Arabia. The investment's carrying value is presented in Other assets in the Condensed Consolidated Balance Sheets in the amount of $3,847,000 and $3,377,000 in the three months ended September 30, 2024 and March 31, 2024, respectively, and has been accounted for as an equity method investment. The investment value increased for the Company's ownership percentage of income earned by EMC in the amount of $236,000 and $183,000 in the three months ended September 30, 2024 and September 30, 2023, respectively, and increased by $362,000 and $559,000 in the six months ended September 30, 2024 and September 30, 2023, respectively, recorded in Investment (income) loss on the Condensed Consolidated Statements of Operations. Further, in the six months ended September 30, 2023, EMC has distributed cash dividends which the Company received 49% of pursuant to its ownership interest. The investment value was decreased for the Company's share of EMC's cash dividend in the amount of $247,000 in the six months ended September 30, 2023, as they were determined to be a return of the Company's investment. Dividends are included in investing activities on the Condensed Consolidated Statements of Cash Flows and $144,000 in the six months ended September 30, 2023, as the distribution received in fiscal 2024 exceeded cumulative equity in earnings, under the cumulative earnings approach. The remaining balance of the dividend for the six months ended September 30, 2023, is included in cash flows from operations on the Condensed Consolidated Statements of Cash Flows. There were no such dividends in the six months ended September 30, 2024. The September 30, 2024 and March 31, 2024 trade accounts receivable balances due from EMC were $12,700,000 and $10,300,000, respectively, and are comprised of amounts due from the sale of goods and services in the ordinary course of business.