| Schedule of Stockholders Equity [Table Text Block] |
| | | Twin Disc, Inc. Shareholders’ Equity | |
| | | | | | | | | | | Accumulated | | | | | | | | | | | | | |
| | | | | | | | | | | Other | | | | | | | Non- | | | | | |
| | | Common | | | Retained | | | Comprehensive | | | Treasury | | | Controlling | | | Total | |
| | | Stock | | | Earnings | | | Income (Loss) | | | Stock | | | Interest | | | Equity | |
| Balance, June 30, 2025 | | | 42,269 | | | | 125,414 | | | | 3,730 | | | | (7,402 | ) | | | 380 | | | $ | 164,391 | |
| Net income (loss) | | | | | | | (518 | ) | | | | | | | | | | | 106 | | | | (412 | ) |
| Dividends paid to shareholders | | | | | | | (566 | ) | | | | | | | | | | | | | | | (566 | ) |
| Translation adjustments | | | | | | | | | | | (2,516 | ) | | | | | | | 85 | | | | (2,431 | ) |
| Benefit plan adjustments, net of tax | | | | | | | | | | | 632 | | | | | | | | | | | | 632 | |
| Unrealized gain (loss) on hedges, net of tax | | | | | | | | | | | 98 | | | | | | | | | | | | 98 | |
| Compensation expense | | | 862 | | | | | | | | | | | | | | | | | | | | 862 | |
| Stock awards, net | | | (5,318 | ) | | | | | | | | | | | 3,632 | | | | | | | | (1,686 | ) |
| Balance, September 26, 2025 | | | 37,813 | | | | 124,330 | | | | 1,944 | | | | (3,770 | ) | | | 571 | | | | 160,888 | |
| Net income (loss) | | | | | | | 22,371 | | | | | | | | | | | | 107 | | | $ | 22,478 | |
| Dividends paid to shareholders | | | | | | | (571 | ) | | | | | | | | | | | | | | | (571 | ) |
| Translation adjustments | | | | | | | | | | | 1,056 | | | | | | | | (27 | ) | | | 1,029 | |
| Benefit plan adjustments, net of tax | | | | | | | | | | | 640 | | | | | | | | | | | | 640 | |
| Unrealized gain (loss) on hedges, net of tax | | | | | | | | | | | (131 | ) | | | | | | | | | | | (131 | ) |
| Compensation expense | | | 846 | | | | | | | | | | | | | | | | | | | | 846 | |
| Stock awards, net | | | (520 | ) | | | | | | | | | | | 520 | | | | | | | | 0 | |
| Balance, December 26, 2025 | | | 38,139 | | | | 146,130 | | | | 3,509 | | | | (3,250 | ) | | | 651 | | | | 185,179 | |
| Net income (loss) | | | | | | | 3,325 | | | | | | | | | | | | 231 | | | | 3,556 | |
| Dividends paid to shareholders | | | | | | | (580 | ) | | | | | | | | | | | | | | | (580 | ) |
| Translation adjustments | | | | | | | | | | | (3,140 | ) | | | | | | | (20 | ) | | | (3,160 | ) |
| Benefit plan adjustments, net of tax | | | | | | | | | | | 477 | | | | | | | | | | | | 477 | |
| Unrealized gain (loss) on hedges, net of tax | | | | | | | | | | | 294 | | | | | | | | | | | | 294 | |
| Compensation expense | | | 760 | | | | | | | | | | | | | | | | | | | | 760 | |
| Stock awards, net | | | (13 | ) | | | | | | | | | | | 13 | | | | | | | | 0 | |
| Balance, March 27, 2026 | | $ | 38,886 | | | $ | 148,875 | | | $ | 1,140 | | | $ | (3,237 | ) | | $ | 862 | | | $ | 186,526 | |
| | | Twin Disc, Inc. Shareholders’ Equity | |
| | | | | | | | | | | Accumulated | | | | | | | | | | | | | |
| | | | | | | | | | | Other | | | | | | | Non- | | | | | |
| | | Common | | | Retained | | | Comprehensive | | | Treasury | | | Controlling | | | Total | |
| | | Stock | | | Earnings | | | Income (Loss) | | | Stock | | | Interest | | | Equity | |
| Balance, June 30, 2024 | | | 41,798 | | | | 129,592 | | | | (6,905 | ) | | | (9,783 | ) | | | 352 | | | $ | 155,054 | |
| Net income (loss) | | | | | | | (2,765 | ) | | | | | | | | | | | (7 | ) | | | (2,772 | ) |
| Dividends paid to shareholders | | | | | | | (570 | ) | | | | | | | | | | | | | | | (570 | ) |
| Translation adjustments | | | | | | | | | | | 7,148 | | | | | | | | 143 | | | | 7,291 | |
| Benefit plan adjustments, net of tax | | | | | | | | | | | 221 | | | | | | | | | | | | 221 | |
| Unrealized gain (loss) on hedges, net of tax | | | | | | | | | | | (853 | ) | | | | | | | | | | | (853 | ) |
| Compensation expense | | | 1,024 | | | | | | | | | | | | | | | | | | | | 1,024 | |
| Stock awards, net | | | (2,920 | ) | | | | | | | | | | | 1,671 | | | | | | | | (1,249 | ) |
| Balance, September 27, 2024 | | | 39,902 | | | | 126,257 | | | | (389 | ) | | | (8,112 | ) | | | 488 | | | | 158,146 | |
| Net income (loss) | | | | | | | 919 | | | | | | | | | | | | 180 | | | | 1,099 | |
| Dividends paid to shareholders | | | | | | | (566 | ) | | | | | | | | | | | | | | | (566 | ) |
| Translation adjustments | | | | | | | | | | | (11,311 | ) | | | | | | | (58 | ) | | | (11,369 | ) |
| Benefit plan adjustments, net of tax | | | | | | | | | | | (1,668 | ) | | | | | | | | | | | (1,668 | ) |
| Unrealized gain (loss) on hedges, net of tax | | | | | | | | | | | 1,146 | | | | | | | | | | | | 1,146 | |
| Compensation expense | | | 853 | | | | | | | | | | | | | | | | | | | | 853 | |
| Stock awards, net | | | (644 | ) | | | | | | | | | | | 637 | | | | | | | | (7 | ) |
| Balance, December 27, 2024 | | $ | 40,111 | | | $ | 126,610 | | | $ | (12,222 | ) | | $ | (7,475 | ) | | $ | 610 | | | $ | 147,634 | |
| Net income (loss) | | | | | | | (1,472 | ) | | | | | | | | | | | 50 | | | | (1,422 | ) |
| Dividends paid to shareholders | | | | | | | (566 | ) | | | | | | | | | | | | | | | (566 | ) |
| Translation adjustments | | | | | | | | | | | 4,120 | | | | | | | | 32 | | | | 4,152 | |
| Benefit plan adjustments, net of tax | | | | | | | | | | | 201 | | | | | | | | | | | | 201 | |
| Unrealized gain (loss) on cash flow hedge, net of tax | | | | | | | | | | | (653 | ) | | | | | | | | | | | (653 | ) |
| Compensation expense | | | 843 | | | | | | | | | | | | | | | | | | | | 843 | |
| Stock awards, net | | | (27 | ) | | | | | | | | | | | 27 | | | | | | | | - | |
| Balance, March 28, 2025 | | $ | 40,927 | | | $ | 124,572 | | | $ | (8,554 | ) | | $ | (7,448 | ) | | $ | 692 | | | $ | 150,189 | |
|
| Reconciliation For The Changes In Accumulated Other Comprehensive Income Loss Net Of Tax By Component [Table Text Block] |
| | | Translation | | | Benefit Plan | | | Cash Flow | | | Net Investment | |
| | | Adjustment | | | Adjustment | | | Hedges | | | Hedges | |
| Balance, June 30, 2025 | | $ | 15,036 | | | $ | (11,461 | ) | | $ | 284 | | | $ | (129 | ) |
| Translation adjustment during the quarter | | | (2,516 | ) | | | - | | | | - | | | | - | |
| Amounts reclassified from accumulated other comprehensive income (loss) | | | | | | | 632 | | | | (31 | ) | | | 129 | |
| Net current period other comprehensive income (loss) | | | (2,516 | ) | | | 632 | | | | (31 | ) | | | 129 | |
| Balance, September 26, 2025 | | | 12,520 | | | | (10,829 | ) | | | 253 | | | | - | |
| Translation adjustment during the quarter | | | 1,056 | | | | - | | | | - | | | | - | |
| Amounts reclassified from accumulated other comprehensive income (loss) | | | - | | | | 640 | | | | (28 | ) | | | (103 | ) |
| Net current period other comprehensive income (loss) | | | 1,056 | | | | 640 | | | | (28 | ) | | | (103 | ) |
| Balance, December 26, 2025 | | | 13,576 | | | | (10,189 | ) | | | 225 | | | | (103 | ) |
| Translation adjustment during the quarter | | | (3,140 | ) | | | - | | | | - | | | | - | |
| Amounts reclassified from accumulated other comprehensive income (loss) | | | - | | | | 477 | | | | (12 | ) | | | 306 | |
| Net current period other comprehensive income (loss) | | | (3,140 | ) | | | 477 | | | | (12 | ) | | | 306 | |
| Balance, March 27, 2026 | | $ | 10,436 | | | $ | (9,712 | ) | | $ | 213 | | | $ | 203 | |
| | | Translation | | | Benefit Plan | | | Cash Flow | | | Net Investment | |
| | | Adjustment | | | Adjustment | | | Hedges | | | Hedges | |
| Balance, June 30, 2024 | | $ | (849 | ) | | $ | (8,062 | ) | | $ | 504 | | | $ | 1,502 | |
| Translation adjustment during the quarter | | | 7,148 | | | | - | | | | - | | | | - | |
| Amounts reclassified from accumulated other comprehensive income (loss) | | | - | | | | 221 | | | | (169 | ) | | | (684 | ) |
| Net current period other comprehensive (loss) income | | | 7,148 | | | | 221 | | | | (169 | ) | | | (684 | ) |
| Balance, September 27, 2024 | | | 6,299 | | | | (7,841 | ) | | | 335 | | | | 818 | |
| Translation adjustment during the quarter | | | (11,311 | ) | | | - | | | | - | | | | - | |
| Return on plan assets | | | - | | | | (1,808 | ) | | | - | | | | - | |
| Amounts reclassified from accumulated other comprehensive income (loss) | | | - | | | | 140 | | | | 24 | | | | 1,122 | |
| Net current period other comprehensive income (loss) | | | (11,311 | ) | | | (1,668 | ) | | | 24 | | | | 1,122 | |
| Balance, December 27, 2024 | | | (5,012 | ) | | | (9,509 | ) | | | 359 | | | | 1,940 | |
| Translation adjustment during the quarter | | | 4,120 | | | | | | | | - | | | | - | |
| Amounts reclassified from accumulated other comprehensive income (loss) | | | - | | | | 201 | | | | (45 | ) | | | (608 | ) |
| Net current period other comprehensive income (loss) | | | 4,120 | | | | 201 | | | | (45 | ) | | | (608 | ) |
| Balance, March 28, 2025 | | $ | (892 | ) | | $ | (9,308 | ) | | $ | 314 | | | $ | 1,332 | |
|