Note P - Income Taxes - Reconciliation of U.S. Federal Income Taxes to Actual Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018
U.S. federal income tax at 21% (27.56% in 2018)	$ 3,046	$ 3,974
Increases (reductions) in tax resulting from:
Foreign tax items	281	675
State taxes	209	272
Valuation allowance		(3,803)
Change in prior year estimate	(50)	(89)
Research and development tax credits	(306)	(162)
Section 199 deduction		(114)
Unrecognized tax benefits	158	(42)
Stock compensation	(153)	(114)
Rate changes	15	3,786
Deferred tax basis adjustments	(111)	431
Executive compensation	291
GILTI inclusion	284
FDII deduction	(74)
Other, net	121	(41)
Income tax (benefit) expense	$ 3,711	$ 4,773

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.