Note O - Income Taxes - Reconciliation of U.S. Federal Income Taxes to Actual Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2020	Jun. 30, 2019
U.S. federal income tax at 21%	$ (9,185)	$ 3,046
Increases (reductions) in tax resulting from:
Foreign tax items	236	281
State taxes	(716)	209
Change in prior year estimate	(213)	(50)
Research and development tax credits	(412)	(306)
Goodwill impairment	4,814
Unrecognized tax benefits	9	158
Stock compensation	(93)	(153)
Rate changes	237	15
Deferred tax basis adjustments	(138)	(111)
Executive compensation		291
GILTI inclusion	1,220	284
FDII deduction		(74)
Other, net	72	121
Income tax (benefit) expense	$ (4,169)	$ 3,711

No definition available.

Name:	twin_EffectiveIncomeTaxRateReconciliationDeductionExecutiveCompensationAmount
Namespace Prefix:	twin_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of the difference between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for foreign-derived intangible income ("FDII").

+ References

No definition available.