Segment Reporting Disclosure [Text Block] | E. Business Segments The Company and its subsidiaries are engaged in the manufacture and sale of marine and heavy-duty off-highway power transmission equipment. Principal products include marine transmissions, azimuth drives, surface drives, propellers and boat management systems, as well as power-shift transmissions, hydraulic torque converters, power take-offs, industrial clutches and controls systems. The Company sells to both domestic and foreign customers in a variety of market areas, principally pleasure craft, commercial and military marine markets, as well as in the energy and natural resources, government and industrial markets. The Company's worldwide sales to both domestic and foreign customers are transacted through a direct sales force and a distributor network. The Company has two reportable segments: manufacturing and distribution. These segment structures reflect the way management makes operating decisions and manages the growth and profitability of the business. It also corresponds with management’s approach of allocating resources and assessing the performance of its segments. The accounting practices of the segments are the same as those described in the summary of significant accounting policies. Transfers between segments are at established inter-company selling prices. Management evaluates the performance of its segments based on their net income. Information about the Company’s segments is summarized as follows: For the Quarter Ended For the Two Quarters Ended December 31, 2021 December 25, 2020 December 31, 2021 December 25, 2020 Net sales Manufacturing segment sales $ 49,298 $ 41,705 $ 90,893 $ 80,200 Distribution segment sales 28,291 23,223 48,825 45,729 Inter/Intra segment elimination – manufacturing (13,200 ) (12,170 ) (24,143 ) (22,908 ) Inter/Intra segment elimination – distribution (4,500 ) (4,201 ) (7,925 ) (8,284 ) $ 59,889 $ 48,557 $ 107,650 $ 94,737 Net (loss) income attributable to Twin Disc Manufacturing segment net (loss) income $ (1,601 ) $ (3,112 ) $ 3,231 $ (5,774 ) Distribution segment net income 1,496 500 1,979 1,655 Corporate and eliminations (3,731 ) (1,701 ) (7,124 ) (4,173 ) $ (3,836 ) $ (4,313 ) $ (1,914 ) $ (8,292 ) Assets December 31, 2021 June 30, 2021 Manufacturing segment assets $ 344,947 $ 364,379 Distribution segment assets 50,899 46,956 Corporate assets and elimination of intercompany assets (131,288 ) (135,922 ) $ 264,558 $ 275,413 Disaggregated revenue: The following table presents details deemed most relevant to the users of the financial statements for the quarters and two December 31, 2021 December 25, 2020. Net sales by product group for the quarter ended December 31, 2021 Elimination of Manufacturing Distribution Intercompany Sales Total Industrial $ 7,085 $ 1,809 $ (1,188 ) $ 7,706 Land-based transmissions 12,326 6,497 (5,505 ) 13,318 Marine and propulsion systems 29,861 16,659 (11,000 ) 35,520 Other 26 3,326 (7 ) 3,345 Total $ 49,298 $ 28,291 $ (17,700 ) $ 59,889 Net sales by product group for the quarter ended December 25, 2020 Elimination of Manufacturing Distribution Intercompany Sales Total Industrial $ 5,287 $ 1,308 $ (1,309 ) $ 5,286 Land-based transmissions 10,101 6,308 (4,669 ) 11,740 Marine and propulsion systems 26,300 14,216 (10,381 ) 30,135 Other 17 1,391 (12 ) 1,396 Total $ 41,705 $ 23,223 $ (16,371 ) $ 48,557 Net sales by product group for the two December 31, 2021 Elimination of Manufacturing Distribution Intercompany Sales Total Industrial $ 12,992 $ 2,927 $ (2,081 ) $ 13,838 Land-based transmissions 23,710 11,602 (9,752 ) 25,560 Marine and propulsion systems 54,148 28,222 (20,216 ) 62,154 Other 43 6,074 (19 ) 6,098 Total $ 90,893 $ 48,825 $ (32,068 ) $ 107,650 Net sales by product group for the two December 25, 2020 Elimination of Manufacturing Distribution Intercompany Sales Total Industrial $ 10,093 $ 2,679 $ (2,062 ) $ 10,710 Land-based transmissions 20,595 12,374 (8,969 ) 24,000 Marine and propulsion systems 49,479 26,975 (20,144 ) 56,310 Other 33 3,701 (17 ) 3,717 Total $ 80,200 $ 45,729 $ (31,192 ) $ 94,737 |