Twin Disc (TWIN) 10-K 26 Aug 20 2020 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Jun. 30, 2020	Aug. 20, 2020	Dec. 27, 2019
Document Information [Line Items]
Entity Registrant Name	TWIN DISC INC
Entity Central Index Key	0000100378
Trading Symbol	twin
Current Fiscal Year End Date	--06-30
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Interactive Data Current	Yes
Entity Common Stock, Shares Outstanding (in shares)		13,552,104
Entity Public Float			$ 107,190,561
Entity Shell Company	false
Document Type	10-K
Document Period End Date	Jun. 30, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false
Title of 12(b) Security	Common Stock (No Par Value)

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Current assets:
Cash	$ 10,688	$ 12,362
Accounts receivable, net	30,682	44,013
Inventories	120,607	125,893
Prepaid expenses	5,269	11,681
Other	6,739	8,420
Total current assets	173,985	202,369
Property, plant and equipment, net	72,732	71,258
Goodwill, net	0	25,954
Deferred income taxes	24,445	18,178
Intangible assets, net	18,973	25,353
Other assets	3,992	3,758
Total assets	294,127	346,870
Current liabilities:
Short-term borrowings and current maturities of long-term debt	4,691	2,000
Accounts payable	25,663	31,468
Total accrued liabilities	36,380	41,646
Total current liabilities	66,734	75,114
Long-term debt	37,896	40,491
Lease obligations	13,495	12,646
Accrued retirement benefits	27,938	25,878
Deferred income taxes	5,501	7,429
Other long-term liabilities	2,605	2,494
Total liabilities	154,169	164,052
Commitments and contingencies (Note P)
Twin Disc shareholders' equity:
Preferred shares authorized: 200,000; issued: none; no par value
Common shares authorized: 30,000,000; issued: 14,632,802; no par value	42,756	45,047
Retained earnings	156,655	196,472
Accumulated other comprehensive loss	(41,226)	(37,971)
Equity before treasury stock	158,185	203,548
Less treasury stock, at cost (1,226,809 and 1,392,524 shares, respectively)	18,796	21,332
Total Twin Disc shareholders' equity	139,389	182,216
Noncontrolling interest	569	602
Total equity	139,958	182,818
Total liabilities and equity	$ 294,127	$ 346,870

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - $ / shares $ / shares in Thousands	Jun. 30, 2020	Jun. 30, 2019
Preferred Shares, Authorized (in shares)	200,000	200,000
Preferred Shares, Issued (in shares)	0	0
Preferred Shares, No Par Value (in dollars per share)	$ 0	$ 0
Common shares, authorized (in shares)	30,000,000	30,000,000
Common shares, shares issued (in shares)	14,632,802	14,632,802
Common shares, no par value (in dollars per share)	$ 0	$ 0
Treasury Stock, Shares (in shares)	1,226,809	1,392,524

Consolidated Statements of Oper

Consolidated Statements of Operations and Comprehensive (Loss) Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Net Sales	$ 246,838	$ 302,663
Cost of goods sold	191,130	213,022
Gross profit	55,708	89,641
Marketing, engineering and administrative expenses	63,218	71,541
Restructuring expenses	5,138	1,179
Goodwill and other asset impairment charge	27,603
Other operating income		(1,577)
(Loss) income from operations	(40,251)	18,498
Other income (expense):
Interest income	78	43
Interest expense	(1,860)	(1,927)
Other income (expense), net	(1,707)	(2,107)
Non-operating income (expense)	(3,489)	(3,991)
(Loss) earnings before income taxes and noncontrolling interest	(43,740)	14,507
Income tax (benefit) expense	(4,169)	3,711
Net (loss) income	(39,571)	10,796
Less: Net earnings attributable to noncontrolling interest, net of tax	(246)	(123)
Net (loss) income attributable to Twin Disc	$ (39,817)	$ 10,673
(Loss) income per share data:
Basic (loss) income per share attributable to Twin Disc common shareholders (in dollars per share)	$ (3.03)	$ 0.84
Diluted (loss) income per share attributable to Twin Disc common shareholders (in dollars per share)	$ (3.03)	$ 0.83
Weighted average shares outstanding data:
Basic shares outstanding (in shares)	13,153	12,571
Dilutive stock awards (in shares)		111
Diluted shares outstanding (in shares)	13,153	12,682
Comprehensive (loss) income:
Net (loss) income	$ (39,571)	$ 10,796
Foreign currency translation adjustment	(966)	(2,671)
Benefit plan adjustments, net of income taxes of ($530) and ($1,242), respectively	(1,675)	(4,121)
Unrealized loss on cash flow hedge, net of income taxes of $185 and $156	(595)	(509)
Comprehensive (loss) income	(42,807)	3,495
Less: Comprehensive income attributable to noncontrolling interest	(266)	(98)
Comprehensive (loss) income attributable to Twin Disc	$ (43,073)	$ 3,397

Consolidated Statements of Op_2

Consolidated Statements of Operations and Comprehensive (Loss) Income (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Benefit plan adjustments, income taxes	$ (530)	$ (1,242)
Unrealized loss on cash flow hedge, income taxes	$ 185	$ 156

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net (loss) income	$ (39,571)	$ 10,796
Adjustments to reconcile net (loss) income to net cash provided (used) by operating activities:
Depreciation and amortization	11,925	9,335
Goodwill and other asset impairment charge	27,603
Restructuring of operations	2,269
Stock compensation expense	1,158	2,591
Provision for deferred income taxes	(8,072)	6,846
Amortizations of inventory fair value step-up		4,277
Gain on contingent consideration of Veth Propulsion acquisition		(809)
Gain on sale of Mill Log Business		(768)
Other, net	258	84
Changes in operating assets and liabilities
Trade accounts receivable	13,132	11,177
Inventories	6,775	(27,671)
Other assets	2,246	(10,159)
Accounts payable	(3,342)	(1,013)
Accrued liabilities	(5,807)	(9,896)
Accrued/prepaid retirement benefits	544	(251)
Net cash provided (used) by operating activities	9,118	(5,461)
Cash flows from investing activities, net of acquired business:
Capital expenditures	(10,699)	(11,979)
Proceeds from sale of Mill Log business	500	5,158
Proceeds from sale of plant assets	137	239
Proceeds from life insurance policy	102	101
Acquisition of Veth Propulsion, less cash acquired		(60,195)
Other, net	(159)	(233)
Net cash used by investing activities	(10,119)	(66,909)
Cash flows from financing activities:
Borrowings under long-term debt agreement	8,200	44,480
Borrowings under revolving loan agreement	99,262	147,854
Repayments under revolving loan agreement	(105,065)	(129,548)
Repayments of long-term borrowings	(2,241)	(24,752)
Payments of withholding taxes on stock compensation	(913)	(1,005)
Dividends paid to noncontrolling interest	(298)	(115)
Proceeds from issuance of common stock, net		32,210
Proceeds from exercise of stock options		36
Net cash (used) provided by financing activities	(1,055)	69,160
Effect of exchange rate changes on cash	382	401
Net change in cash	(1,674)	(2,809)
Cash:
Beginning of year	12,362	15,171
End of year	10,688	12,362
Supplemental cash flow information:
Interest	1,861	1,906
Income taxes	$ 3,481	$ 1,927

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Common Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]	Total
Balance at Jun. 30, 2018	$ 11,570	$ 178,896	$ (23,792)	$ (23,677)	$ 619	$ 143,616
Net Net (loss) income		10,673			123	10,796
Translation adjustments			(2,646)		(25)	(2,671)
Benefit plan adjustments, net of tax			(4,121)			(4,121)
Unrealized loss on cash flow hedge, net of tax			(509)			(509)
Release stranded tax effects		6,903	(6,903)
Cash dividends					(115)	(115)
Compensation expense	2,591					2,591
Shares issued, net	30,886			2,345		33,231
Balance at Jun. 30, 2019	45,047	196,472	(37,971)	(21,332)	602	182,818
Net Net (loss) income		(39,817)			246	(39,571)
Translation adjustments			(985)		19	(966)
Benefit plan adjustments, net of tax			(1,675)			(1,675)
Unrealized loss on cash flow hedge, net of tax			(595)			(595)
Cash dividends					(298)	(298)
Compensation expense	1,158					1,158
Shares issued, net	(3,449)			2,536		(913)
Balance at Jun. 30, 2020	$ 42,756	$ 156,655	$ (41,226)	$ (18,796)	$ 569	$ 139,958

Note A - Basis of Presentation

Note A - Basis of Presentation and Significant Accounting Policies	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Significant Accounting Policies [Text Block]	A. BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation The consolidated financial statements and information presented herein include the financial results of Veth Propulsion Holding B.V. (“Veth Propulsion”), the acquisition of which was completed on July 2, 2018. 10 Recent Event s In March 2020, 19 As a result of the COVID- 19 March 2020 fourth 2020, The COVID- 19 Aside from operational impacts and its results on our operations during the quarter, the occurrence of the COVID- 19 The full impact of the COVID- 19 Significant Accounting Policies The following is a summary of the significant accounting policies followed in the preparation of these financial statements: Consolidation Principles 2020, not Management Estimates-- Translation of Foreign Currencies $570 $681 2020 2019, Cash three not Accounts Receivable $1,740 $1,582 June 30, 2020 2019, may may Fair Value of Financial Instruments . 1 2 June 30, 2020. June 30, 2020. 2 Derivative Financial Instruments - Inventories first first first Property, Plant and Equipment and Depreciation 10 40 5 15 not Impairment of Long-lived Assets may not may third Goodwill and Other Intangibles fourth may not A significant amount of judgment is involved in determining if an indicator of impairment has occurred. Such indicators may Goodwill impairment charges are recorded using a simplified one The Company reviews goodwill for impairment on a reporting unit basis annually as of the first fourth may not The Company conducted interim qualitative assessments throughout the year. In the third 2020, 19 March 27, 2020 $25,380, The fair value of the Company's other intangible assets with indefinite lives, primarily tradenames, is estimated using the relief-from-royalty method, which requires assumptions related to projected revenues; assumed royalty rates that could be payable if the Company did not third 2020, 19 1 March 27, 2020, $2,223. fourth 2020, not Changes in circumstances, existing at the measurement date or at other times in the future, or in the numerous estimates associated with management's judgments, assumptions and estimates made in assessing the fair value of goodwill and other indefinite-lived intangibles, could result in an impairment charge in the future. The Company will continue to monitor all significant estimates and impairment indicators, and will perform interim impairment reviews as necessary. Any cost incurred to extend or renew the term of an indefinite lived intangible asset are expensed as incurred. Income Taxes not not not Revenue Recognition five 1 2 3 4 5 not not no Goods sold to third Shipping and Handling Fees and Costs Recently Adopted Accounting Standards a. In June 2018, 2018 07 July 1, 2019. not New Accounting Releases a. In June 2016, 2016 13 2018 19, 2019 04 2019 05 326 326 December 15, 2019 ( 2021 326 not b. In August 2018, 2018 13 820, December 15, 2019 ( 2021 c. In August 2018, 2018 14 December 15, 2020 ( 2021 d. In December 2019, 2019 12 December 15, 2020 ( 2022 e. In March 2020, 2020 04 March 12, 2020, may December 31, 2022. Special Note Regarding Smaller Reporting Company Status Under SEC Release 33 10513; 34 83550, second 2020.

Note B - Acquisition of Veth Pr

Note B - Acquisition of Veth Propulsion Holding BV	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Business Combination Disclosure [Text Block]	B . ACQUISITION OF VETH PROPULSION HOLDING B . V . On July 2, 2018, 100% June 13, 2018. Under the terms of the Purchase Agreement, the Company paid an aggregate of approximately $59,407 $1,991 May 13, 2019, 139,347 $1,991, $2,921 $3,300. The total consideration transferred at acquisition date was: Cash, paid at closing and after agreed-upon working capital adjustments $ 59,407 Fair value of contingent consideration at acquisition date 2,921 Total $ 62,328 Fair value of assets acquired and liabilities assumed at acquisition date: Cash, including restricted cash $ 1,078 Accounts receivable and other current assets 10,437 Inventories 26,862 Property, plant and equipment 2,661 Intangibles (a) 26,500 Accounts payable and accrued liabilities (21,208 ) Deferred tax liability (8,001 ) Total net assets acquired 38,329 Goodwill (b) 23,999 Total consideration $ 62,328 (a) Intangibles consist of customer relationships, technology and know-how and tradenames, with estimated useful lives 12 7 10 9 (b) The Company is not The Company financed the payment of the cash consideration through borrowings under a new credit agreement entered into on June 29, 2018

Note C - Inventories

Note C - Inventories	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Inventory Disclosure [Text Block]	C . INVENTORIES The major classes of inventories at June 30 2020 2019 Finished parts $ 62,394 $ 57,682 Work in process 17,844 23,812 Raw materials 40,369 44,399 $ 120,607 $ 125,893 Inventories stated on a LIFO basis represent approximately 50% 52% June 30, 2020 2019, $27,225 $25,709 June 30, 2020 2019, $9,863 $10,463 June 30, 2020 2019,

Note D - Property, Plant and Eq

Note D - Property, Plant and Equipment	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	D . PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment at June 30 2020 2019 Land $ 6,589 $ 6,479 Buildings 48,168 47,627 Machinery and equipment 164,039 158,183 218,796 212,289 Less: accumulated depreciation (146,064 ) (141,031 ) $ 72,732 $ 71,258 Depreciation expense for the years ended June 30, 2020 2019 $7,394 $6,682,

Note E - Goodwill and Other Int

Note E - Goodwill and Other Intangibles	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Goodwill and Intangible Assets Disclosure [Text Block]	E . GOODWILL AND OTHER INTANGIBLES Goodwill The Company reviews goodwill for impairment on a reporting unit basis annually as of the first fourth may not The fair value of reporting units is primarily driven by projected growth rates and operating results under the income approach using a discounted cash flow model, which applies an appropriate market-participant discount rate, and consideration of other market approach data from guideline public companies. If declining actual operating results or future operating results become indicative that the fair value of the Company's reporting units has declined below their carrying values, an interim goodwill impairment test may may may may On July 2, 2018, $23,999 $26,500 June 30, 2019, A significant amount of judgment is involved in determining if a triggering event has occurred. Such indicators may The Company believes that the economic disruptions and unprecedented market volatilities and uncertainties resulting from the COVID- 19 third 2020. March 27, 2020. Subsequent to the adoption of ASU 2017 04, one The European Propulsion reporting unit, which carried goodwill in the amount of $22,822, 19 no 19 In assessing the current environment, management is informed that there is consensus among industry experts that the impacts from the outbreak will be severe and adverse, and that a general contraction in the macroeconomic environment is expected. The magnitude and duration is unknown. Management expects that a contraction of the global economy would reduce or shift the demand for its products in the near term. For example, the reporting unit expects that the demand for certain of its end-market products, such as passenger leisure cruise vessels, passenger ferries, and other commercial vessels that operate based on general economic activities, will likely be adversely impacted as social restrictions by governments remain in place or tighten to curb the outbreak. Based on additional market insights and expectations of industry and subject matter experts, which also includes the negative impacts of the historic and unprecedented free fall drop in the global price of oil, the Company believes that future cash flow projections of this reporting unit will fall short of its previous projections, which included synergies that are now less likely to be realized in the face of a COVID- 19 The European Industrial reporting unit which carried goodwill in the amount of $2,558 The Company completed its interim assessment for goodwill impairment as of March 27, 2020 third 13.0%. $25,380. As a result of the full impairment of goodwill, the balance of goodwill at June 30, 2020 zero no As a consequence of these macroeconomic developments, market insights and expectations, and the occurrence of a triggering event in the quarter, the Company also performed an assessment of its intangibles and other long-lived assets. The Company performed an undiscounted operating cash flow analysis as of March 27, 2020, $2,223. The total non-cash impairment charge of $27,603, $1,199. The changes in the carrying amount of goodwill are summarized as follows: Net Book Value Rollforward Net Book Value By Gross Carrying Amount Accumulated Impairment Net Book European European Industrial Balance at June 30, 2018 $ 16,514 $ (13,822 ) $ 2,692 $ - $ 2,692 Acquisition 23,999 - 23,999 23,999 - Translation adjustment (737 ) - (737 ) (628 ) (109 ) Balance at June 30, 2019 39,776 (13,822 ) 25,954 23,371 2,583 Impairment - (25,380 ) (25,380 ) (22,822 ) (2,558 ) Translation adjustment (574 ) - (574 ) (549 ) (25 ) Balance at June 30, 2020 $ 39,202 $ (39,202 ) $ - $ - $ - Other Intangibles At June 30, Net Book Value Rollforward Net Book Value By Asset Type Gross Carrying Amount Accumulated Net Book Customer Relationships Technology Know-how Trade Name Other Balance at June 30, 2018 $ 13,485 $ (11,781 ) $ 1,704 $ - $ - $ 1,288 $ 416 Addition 236 - 236 - - - 236 Acquistion 26,500 - 26,500 16,300 8,400 1,800 - Amortization - (2,653 ) (2,653 ) (1,123 ) (1,172 ) (261 ) (97 ) Translation adjustment (634 ) - (634 ) (334 ) (203 ) (94 ) (3 ) Balance at June 30, 2019 39,587 (14,434 ) 25,153 14,843 7,025 2,733 552 Addition 92 - 92 - - - 92 Amortization - (4,532 ) (4,532 ) (3,003 ) (1,139 ) (232 ) (158 ) Impairment - (1,306 ) (1,306 ) - - (1,080 ) (226 ) Translation adjustment (434 ) - (434 ) (286 ) (102 ) (33 ) (13 ) Balance at June 30, 2020 $ 39,245 $ (20,272 ) $ 18,973 $ 11,554 $ 5,784 $ 1,388 $ 247 Other intangibles consist mainly of computer software. Amortization is recorded on the basis of straight-line or accelerated, as appropriate, over the estimated useful lives of the assets. The weighted average remaining useful life of the intangible assets included in the table above is approximately 8 Intangible amortization expense for the years ended June 30, 2020 2019 $4,532 $2,653, five Fiscal Year 2021 $ 3,173 2022 2,989 2023 2,827 2024 2,679 2025 2,495 Thereafter 4,810

Note F - Accrued Liabilities

Note F - Accrued Liabilities	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Accounts Payable and Accrued Liabilities Disclosure [Text Block]	F . ACCRUED LIABILITIES Accrued liabilities at June 30 2020 2019 Customer deposits $ 11,541 $ 14,924 Salaries and wages 5,116 6,982 Distributor rebates 3,769 2,943 Retirement benefits 3,559 2,730 Warranty 3,520 3,034 Other 8,875 11,033 $ 36,380 $ 41,646

Note G - Warranty

Note G - Warranty	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Product Warranty Disclosure [Text Block]	G . WARRANTY The Company warrants all assembled products, parts (except component products or parts on which written warranties are issued by the respective manufacturers thereof and are furnished to the original customer, as to which the Company makes no no 12 24 June 30: 2020 2019 Reserve balance, July 1 $ 3,736 $ 4,407 Current period expense and adjustments 10,369 3,323 Payments or credits to customers (9,629 ) (3,953 ) Translation adjustment (16 ) (41 ) Reserve balance, June 30 $ 4,460 3,736 Included in expense in the year ending June 30, 2020 $6,233, The current portion of the warranty accrual ( $3,520 $3,034 2020 2019, $940 $702 2020 2019,

Note H - Debt

Note H - Debt	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Debt Disclosure [Text Block]	H . DEBT Long-term debt consisted of the following at June 30: 2020 2019 Credit Agreement Debt Revolving loans (expire June 2023) $ 16,641 $ 22,666 Term loan (due March 2026) 17,500 19,500 PPP loan 8,200 - Other 246 325 Subtotal 42,587 42,491 Less: current maturities (4,691 ) (2,000 ) Total long-term debt $ 37,896 40,491 Credit Agreement Debt On June 29, 2018, not $35,000 may, not $50,000 On July 2, 2018, $60,729 $35,000 $25,729. $58,862, $1,865. On September 25, 2018, $32,210 On March 4, 2019, second $35,000 $20,000. $20,000 $35,000 Prior to entering into the Second Amendment, the outstanding principal amount of the Term Loan under the Credit Agreement was $10,849. $9,151. January 2, 2020 March 4, 2026 $500 June 30, 2019. The Second Amendment also reduced the applicable margin for purposes of determining the interest rate applicable to the Term Loan. Previously, the applicable margin was 3.00%, 1.375% 2.375%, The Second Amendment also adjusts certain financial covenants made by the Company under the Credit Agreement. Specifically, the Company has covenanted (i) not 3.00 1.00 3.50 1.00 September 30, 2019 3.25 1.00 December 31, 2019 September 30, 2020), not $100,000 50% June 30, 2019 $100,000 $70,000 On January 28, 2020, third 3.00 1.00 4.00 1.00 December 27, 2019, 5.00 1.00 March 27, 2020, 4.00 1.00 June 30, 2020, 3.50 1.00 September 25, 2020 3.00 1.00 December 25, 2020. not $3,900 one 1.25% 3.375%, On April 17, 2020, fourth 1 2 not On July 22, 2020, fifth June 30, 2020. $50,000 $45,000, September 30, 2020 December 31, 2020 3.375% 3.875%. $1,000 2021 2026. In addition, the Company was given financial covenant relief for the quarters ended June 30, 2020 June 30, 2021. 1 $1,000 June 30, 2020 two September 25, 2020; ( 2 $2,500 three December 25, 2020; ( 3 $6,000 four March 26, 2021; 4 $10,000 four June 30, 2021. The Company also entered into a Deposit Account Control Agreement with the Bank, reflecting the Bank's security interest in deposit accounts the Company maintains with the Bank. Under the Fifth Amendment, the Bank may not The Company is also required to maintain a minimum liquidity level, and abide by certain cash dividend and capital expenditure restrictions. Borrowings under the Credit Agreement are secured by substantially all of the Company's personal property, including accounts receivable, inventory, machinery and equipment, and intellectual property. The Company has also pledged 100% 65% Upon the occurrence of an event of default, BMO may 1 2 3 105% may three In addition to the monthly interest payments and any mandatory principal payments required by the Credit Agreement (if applicable), the Company is responsible for paying a quarterly Revolving Credit Commitment Fee and quarterly Letter of Credit Fees. The Revolving Credit Commitment Fee is paid at an annual rate equal to the Applicable Margin on the average daily unused portion of the Revolving Credit Commitment. The Letter of Credit Fee is paid at the Applicable Margin for Revolving Loans that are Eurodollar Loans on the daily average face amount of Letters of Credit outstanding during the preceding calendar quarter. The Company may one The PPP Loa n : On April 17, 2020, $8,200 19 two 1.0% six November 17, 2020, seven The PPP Loan is a forgivable loan to the extent proceeds are used to cover qualified documented payroll, mortgage interest, rent, and utility costs over a 24 150 not In accounting for the terms of the PPP Loan, the Company is guided by ASC 470 Debt 450 30 Gain contingency $8,200 not Other: Other long-term debt pertains mainly to a financing arrangement in Europe. During fiscal 2019, $329 3 5 842, 7% 25%. $74 During fiscal year 2020, 3.64% 2.72% As of June 30, 2020, $43,681 $27,040 The Company's borrowings described above approximates fair value at June 30, 2020 June 30, 2019. 2 The Term Loan is covered by an interest rate swap arrangement with Bank of Montreal, with an outstanding notional amount of $17,500 March 4, 2026. 815, The aggregate scheduled maturities of outstanding long-term debt obligations in subsequent years are as follows: Fiscal Year 2021 $ 4,691 2022 6,672 2023 18,684 2024 2,016 2025 2,000 Thereafter 8,524 $ 42,587 Other lines of credit : The Company has established unsecured lines of credit, which may $943 5.6% June 30, 2020, $952 5.0% June 30, 2019.

Note I - Lease Obligations

Note I - Lease Obligations	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Leases of Lessee Disclosure [Text Block]	I . LEASE OBLIGATIONS In accordance with ASC 842, twelve The Company determines if an arrangement is a lease at contract inception. The lease term begins upon lease commencement, which is when the Company takes possession of the asset, and may not The components of lease expense for the years ended June 30 2020 2019 Finance lease cost: Amortization of right-of-use assets $ 188 $ 27 Interest on lease liabilities 56 8 Operating lease cost 3,137 3,348 Short-term lease cost 64 40 Variable lease cost 58 37 Total lease cost 3,503 3,460 Less: Sublease income (212 ) (222 ) Net lease cost $ 3,291 $ 3,238 Other information related to leases was as follows: 2020 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 3,141 $ 3,338 Operating cash flows from finance leases 167 18 Financing cash flows from finance leases 56 9 Right-of-use-assets obtained in exchange for lease obligations: Operating leases 2,757 13,875 Finance leases 592 553 Weighted average remaining lease term (years): Operating leases 10.7 11.1 Finance lease 4.0 4.8 Weighted average discount rate: Operating leases 7.4 % 7.7 % Finance leases 6.2 % 7.3 % Approximate future minimum rental commitments under non-cancellable leases as of June 30, 2020 Operating Leases Finance Leases 2021 $ 2,724 $ 284 2022 2,233 284 2023 1,988 275 2024 1,793 234 2025 1,567 31 Thereafter 10,930 - Total future lease payments 21,235 1,108 Less: Amount representing interest (6,773 ) (118 ) Present value of future payments $ 14,462 $ 990 The following table provides a summary of leases recorded on the consolidated balance sheet at June 30. Balance Sheet Location 2020 2019 Lease Assets Operating lease right-of-use assets Property, plant and equipment, net $ 14,448 $ 14,138 Finance lease right-of-use assets Property, plant and equipment, net 959 545 Lease Liabilities Operating lease liabilities Accrued liabilities $ 1,724 $ 1,933 Operating lease liabilities Lease obligations 12,738 12,197 Finance lease liabilities Accrued liabilities 233 104 Finance lease liabilities Lease obligations 757 449 Subsequent Event: On July 31, 2020, 15 $427 $4,500 $4,500 $1,041.

Note J - Shareholders' Equity

Note J - Shareholders' Equity	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	J . SHAREHOLDERS' EQUITY The Company completed the sale of 1,533,334 September 25, 2018, $22.50 $2,070 $220, $32,210 June 30, 2020. The total number of shares of common stock outstanding at June 30, 2020 2019 13,405,993 13,240,278, June 30, 2020 2019, 1,226,809 1,392,524 186,226 157,043 2020 2019, 20,511 3,784 2020 2019, Under an authorization given by the Board of Directors on July 27, 2012, not two June 30, 2020 2019, 315,000 Cash dividends per share were $0.00 2020 2019. The Company is authorized to issue 200,000 none 150,000 The components of accumulated other comprehensive loss included in equity as of June 30, 2020 2019 2020 2019 Translation adjustments $ 3,454 $ 4,439 Net loss on cash flow hedge derivatives, net of income taxes of $341 and $156, respectively (1,104 ) (509 ) Benefit plan adjustments, net of income taxes of $13,316 and $12,707 respectively (43,576 ) (41,901 ) Accumulated other comprehensive loss $ (41,226 ) $ (37,971 ) A reconciliation for the changes in accumulated other comprehensive income (loss), net of tax, by component for the years ended June 30, 2020 June 30, 2019 Translation Benefit Plan Cash Flow Adjustment Adjustment Hedges Balance at June 30, 2019 $ 4,439 $ (41,901 ) $ (509 ) Other comprehensive loss before reclassifications (985 ) (3,792 ) (595 ) Amounts reclassified from accumulated other comprehensive loss - 2,117 - Net current period other comprehensive loss (985 ) (1,675 ) (595 ) Balance at June 30, 2020 $ 3,454 $ (43,576 ) $ (1,104 ) Translation Benefit Plan Cash Flow Adjustment Adjustment Hedges Balance at June 30, 2018 $ 7,085 $ (30,877 ) $ - Other comprehensive loss before reclassifications (2,646 ) (6,068 ) (509 ) Release stranded tax effects - (6,903 ) - Amounts reclassified from accumulated other comprehensive loss - 1,947 - Net current period other comprehensive loss (2,646 ) (11,024 ) (509 ) Balance at June 30, 2019 $ 4,439 $ (41,901 ) $ (509 ) A reconciliation for the reclassifications out of accumulated other comprehensive income (loss), net of tax for the year ended June 30, 2020 Amount Reclassified Amortization of benefit plan items Actuarial losses $ (2,982 ) Transition asset and prior service benefit 195 Total before tax benefit (2,787 ) Tax benefit 670 Total reclassification net of tax $ (2,117 ) A reconciliation for the reclassifications out of accumulated other comprehensive income (loss), net of tax for the year ended June 30, 2019 Amount Reclassified Amortization of benefit plan items Actuarial losses $ (2,710 ) Transition asset and prior service benefit 176 Total before tax benefit (2,534 ) Tax benefit 587 Total reclassification net of tax $ (1,947 )

Note K - Business Segments and

Note K - Business Segments and Foreign Operations	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	K . BUSINESS SEGMENTS AND FOREIGN OPERATIONS 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, energy and natural resources, government, and industrial markets. Net sales by product group is summarized as follows: 2020 2019 Industrial $ 26,343 $ 34,042 Land-based transmissions 62,697 112,793 Marine and propulsion systems 152,501 150,237 Other 5,297 5,591 Total $ 246,838 $ 302,663 Industrial products include clutches, power take-offs and pump drives sold to the agriculture, recycling, construction and oil and gas markets. The land based transmission products include applications for oilfield and natural gas, military and airport rescue and fire fighting. The marine and propulsion systems include marine transmission, azimuth drives, controls, surface drives, propellers and boat management systems for the global commercial marine, pleasure craft and patrol boat markets. Other includes non-Twin Disc manufactured product sold through Company-owned distribution entities. The Company has two Information about the Company's segments, before intercompany eliminations, is summarized as follows: 2020 Manufacturing Distribution Total Net Sales $ 227,565 $ 95,824 $ 323,389 Intra-segment sales 14,230 12,889 27,119 Inter-segment sales 43,854 5,578 49,432 Interest income 346 22 368 Interest expense 2,128 - 2,128 Income taxes (2,027 ) 268 (1,759 ) Depreciation and amortization 11,151 379 11,530 Net (loss) income attributable to Twin Disc (31,603 ) 553 (31,050 ) Assets 365,417 43,118 408,535 Expenditures for segment assets 9,615 734 10,349 2019 Manufacturing Distribution Total Net Sales $ 280,428 $ 106,481 $ 386,909 Intra-segment sales 20,384 14,026 34,410 Inter-segment sales 46,078 3,758 49,836 Interest income 1,154 26 1,180 Interest expense 3,086 (37 ) 3,049 Income taxes 7,939 353 8,292 Depreciation and amortization 12,893 402 13,295 Net income attributable to Twin Disc 25,062 248 25,310 Assets 384,612 46,076 430,688 Expenditures for segment assets 10,725 663 11,388 The following is a reconciliation of reportable segment net sales and net (loss) income to the Company's consolidated totals: 2020 2019 Net sales: Total net sales from reportable segments $ 323,389 $ 386,909 Elimination of inter-company sales (76,551 ) (84,246 ) Total consolidated net sales $ 246,838 $ 302,663 Net (loss) income attributable to Twin Disc: Total net (loss) income from reportable segments $ (31,050 ) $ 25,310 Other adjustments and corporate expenses (8,767 ) (14,637 ) Total consolidated net (loss) income attributable to Twin Disc $ (39,817 ) $ 10,673 Corporate expenses pertain to certain costs that are not Other significant items: Segment Consolidated Totals Adjustments Totals 2020 Interest income $ 368 $ (290 ) $ 78 Interest expense 2,128 (268 ) 1,860 Income taxes (1,759 ) (2,410 ) (4,169 ) Depreciation and amortization 11,530 395 11,925 Assets 408,535 (114,408 ) 294,127 Expenditures for segment assets 10,349 350 10,699 2019 Interest income $ 1,180 $ (1,137 ) $ 43 Interest expense 3,049 (1,122 ) 1,927 Income taxes 8,292 (4,581 ) 3,711 Depreciation and amortization 13,295 317 13,612 Assets 430,688 (83,818 ) 346,870 Expenditures for segment assets 11,388 591 11,979 All adjustments represent inter-company eliminations and corporate amounts. Geographic information about the Company is summarized as follows: 2020 2019 Net sales United States $ 83,771 $ 132,467 Netherlands 39,501 31,521 China 26,354 28,772 Austria 12,552 10,464 Australia 12,438 12,463 Italy 11,802 12,755 Canada 5,664 10,875 Other countries 54,756 63,346 Total $ 246,838 $ 302,663 Net sales by geographic region are based on product shipment destination. Long-lived assets primarily pertain to property, plant and equipment and exclude goodwill, other intangibles, and deferred income taxes. They are summarized as follows: 2020 2019 Long-lived assets United States $ 41,996 $ 41,233 Netherlands 12,659 13,186 Belgium 8,363 8,595 Switzerland 6,804 6,810 Italy 1,697 1,894 Other countries 5,205 3,298 Total $ 76,724 $ 75,016 The Company has one 10% 2020. no 10% 2019. Disaggregated revenue: The following tables present details deemed most relevant to the users of the financial statements for the years ended June 30, 2020 June 30, 2019. Net sales by product group for the year ended June 30, 2020 Manufacturing Distribution Elimination of Intercompany Sales Total Industrial $ 24,143 $ 5,634 $ (3,434 ) $ 26,343 Land-based transmissions 63,523 25,699 (26,525 ) 62,697 Marine and propulsion systems 139,833 59,212 (46,544 ) 152,501 Other 66 5,279 (48 ) 5,297 Total $ 227,565 $ 95,824 $ (76,551 ) $ 246,838 Net sales by product group for the year ended June 30, 2019 Manufacturing Distribution Elimination of Intercompany Sales Total Industrial $ 30,393 $ 8,079 $ (4,430 ) $ 34,042 Land-based transmissions 111,260 30,483 (28,950 ) 112,793 Marine and propulsion systems 138,704 62,329 (50,796 ) 150,237 Other 71 5,590 (70 ) 5,591 Total $ 280,428 $ 106,481 $ (84,246 ) $ 302,663

Note L - Stock-based Compensati

Note L - Stock-based Compensation	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Share-based Payment Arrangement [Text Block]	L . STOCK -BASED COMPENSATION In fiscal 2019, 2018 “2018 2018 may one 850,000 may In fiscal 2011, 2010 “2010 250,000 2010 “2010 may 650,000 Shares available for future awards as of June 30 2020 2019 2018 LTI Plan 492,591 742,325 2010 Directors' Plan 12,865 61,354 Performance Stock Awards (“PSA”) In fiscal 2020 2019, 131,688 50,004 The PSAs granted in fiscal 2020 three June 30, 2022. 184,766. not The PSAs granted in fiscal 2019 three June 30, 2021. 67,007. not There were 167,848 96,124 June 30, 2020 2019, 13,844 0 2020 2019, June 30, 2020 2019, $368 $1,196, June 30, 2020 2019, $87 $278, June 30, 2020 $14.78. June 30, 2020, $2,480 2020 2019 2020 $167. 2019 $1,228. Restricted Stock Awards (“RS”) The Company has unvested RS outstanding that will vest if certain service conditions are fulfilled. The fair value of the RS grants is recorded as compensation over the vesting period, which is generally 1 3 2020 2019, 180,379 43,305 20,511 3,784 2020 2019, 231,379 172,637 June 30, 2020 2019, $1,200 $1,096 June 30, 2020 2019, June 30, 2020 2019 $283 $255, 2020 2019 $1,241 $2,391, June 30, 2020, $1,307 three Restricted Stock Unit Awards (“RS U ”) Under the 2018 three 2019, 37,950 37,950 June 30, 2020 June 30, 2019. $326 $299 June 30, 2020 2019, June 30, 2020 2019, $77 $69, June 30, 2020 $25.77. June 30, 2020, $353 two Stock Options The 2010 may ten 2018 may 2018 10% not 110% five no 10% no 2010 2018 June 30, 2020 2019.

Note M - Engineering and Develo

Note M - Engineering and Development Costs	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Research, Development, and Computer Software Disclosure [Text Block]	M . ENGINEERING AND DEVELOPMENT COSTS Engineering and development costs include research and development expenses for new products, development and major improvements to existing products, and other costs for ongoing efforts to refine existing products. Research and development costs charged to operations totaled $1,820 $2,385 2020 2019, $10,998 $12,594 2020 2019,

Note N - Pension and Other Post

Note N - Pension and Other Postretirement Benefit Plans	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Retirement Benefits [Text Block]	N . P ENSION AND OTHER POSTRETIREMENT BENEFIT PLANS The Company has non-contributory, qualified defined benefit pension plans covering substantially all domestic employees hired prior to October 1, 2003, January 1, 1997, January 1, 1997 July 31, 2009, In addition, the Company has unfunded, non-qualified retirement plans for certain management employees and Directors. In the case of management employees, benefits are based on an annual credit to a bookkeeping account, intended to restore the benefits that would have been earned under the qualified plans, but for the earnings limitations under the Internal Revenue Code. In the case of Directors, benefits are based on years of service on the Board. All benefits vest upon retirement from the Company. In addition to providing pension benefits, the Company provides other postretirement benefits, including healthcare and life insurance benefits for certain domestic retirees. All employees retiring after December 31, 1992, 100% The measurement date for the Company's pension and postretirement benefit plans in fiscal 2020 2019 June 30. Obligations and Funded Status The following table sets forth the Company's defined benefit pension plans' and other postretirement benefit plans' funded status and the amounts recognized in the Company's balance sheets and statement of operations and comprehensive (loss) income as of June 30: Other Pension Postretirement Benefits Benefits 2020 2019 2020 2019 Change in benefit obligation: Benefit obligation, beginning of year $ 107,322 $ 105,012 $ 7,451 $ 8,077 Service cost 653 795 17 19 Interest cost 3,305 4,020 219 305 Actuarial loss 3,161 6,718 211 18 Contributions by plan participants 93 103 352 389 Benefits paid (9,014 ) (9,326 ) (1,191 ) (1,357 ) Benefit obligation, end of year $ 105,520 $ 107,322 $ 7,059 $ 7,451 Change in plan assets: Fair value of assets, beginning of year $ 87,291 $ 90,258 $ - $ - Actual return on plan assets 3,541 4,125 - - Employer contribution 1,373 2,131 839 968 Contributions by plan participants 93 103 352 389 Benefits paid (9,014 ) (9,326 ) (1,191 ) (1,357 ) Fair value of assets, end of year $ 83,284 $ 87,291 $ - $ - Funded status $ (22,236 ) $ (20,031 ) $ (7,059 ) $ (7,451 ) Amounts recognized in the balance sheet consist of: Other assets - noncurrent $ - $ 3 $ - $ - Accrued liabilities - current (276 ) (645 ) (1,081 ) (962 ) Accrued retirement benefits - noncurrent (21,960 ) (19,389 ) (5,978 ) (6,489 ) Net amount recognized $ (22,236 ) $ (20,031 ) $ (7,059 ) $ (7,451 ) Amounts recognized in accumulated other comprehensive loss consist of (net of tax): Net transition obligation $ 158 $ 178 $ - $ - Prior service cost 104 144 (697 ) (908 ) Actuarial net loss 43,548 42,185 463 302 Net amount recognized $ 43,810 $ 42,507 $ (234 ) $ (606 ) The amounts in accumulated other comprehensive loss that are expected to be recognized as components of net periodic benefit cost during the next fiscal year for the qualified defined benefit and other postretirement benefit plans are as follows: Other Pension Postretirement Benefits Benefits Net transition obligation $ 35 $ - Prior service cost 45 (275 ) Actuarial net loss 3,246 - Net amount to be recognized $ 3,326 (275 ) The accumulated benefit obligation for all defined benefit pension plans was approximately $105,520 $107,322 June 30, 2020 2019, Information for pension plans with an accumulated benefit obligation in excess of plan assets : June 30 2020 2019 Projected and accumulated benefit obligation $ 105,520 $ 102,879 Fair value of plan assets 83,284 82,845 Components of Net Periodic Benefit Cost : Pension Benefits 2020 2019 Service cost $ 648 $ 792 Interest cost 3,304 4,019 Expected return on plan assets (4,894 ) (5,238 ) Amortization of transition obligation 35 34 Amortization of prior service cost 45 64 Amortization of actuarial net loss 2,982 2,710 Net periodic benefit cost $ 2,120 2,381 Other Postretirement Benefits 2020 2019 Service cost $ 17 $ 18 Interest cost 219 304 Amortization of prior service cost (274 ) (274 ) Net periodic benefit cost $ (38 ) $ 48 Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income for Fiscal 20 20 (Pre-tax): Other Postretirement Pension Benefits Net loss $ 4,770 $ 211 Amortization of transition asset (35 ) - Amortization of prior service (cost) benefit (45 ) 275 Amortization of net (loss) gain (2,978 ) - Total recognized in other comprehensive income 1,712 486 Net periodic benefit cost 2,120 (38 ) Total recognized in net periodic benefit cost and other comprehensive income $ 3,832 $ 448 Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income for Fiscal 201 9 (Pre-tax): Other Postretirement Pension Benefits Net loss $ 8,098 $ 18 Prior service cost (211 ) - Amortization of transition asset (34 ) - Amortization of prior service (cost) benefit (64 ) 275 Amortization of net (loss) gain (2,711 ) - Total recognized in other comprehensive income 5,078 293 Net periodic benefit cost 2,381 48 Total recognized in net periodic benefit cost and other comprehensive income $ 7,459 $ 341 Additional Information Assumptions Other Pension Benefits Postretirement Benefits Weighted average assumptions used to determine benefit obligations at June 30 2020 2019 2020 2019 Discount rate 2.49 % 3.22 % 2.37 % 3.15 % Expected return on plan assets 5.89 % 6.04 % Other Pension Benefits Postretirement Benefits Weighted average assumptions used to determine net periodic benefit costs for years ended June 30 2020 2019 2020 2019 Discount rate 3.22 % 4.01 % 3.15 % 4.09 % Expected return on plan assets 6.04 % 6.74 % The assumed weighted-average healthcare cost trend rate was 6.25% 2020, 5% 2025. 1% $84 $3. 1% $71 $3. Plan Assets The Company's Benefits Committee (“Committee”), a non-board management committee, oversees investment matters related to the Company's funded benefit plans. The Committee works with external actuaries and investment consultants on an ongoing basis to establish and monitor investment strategies and target asset allocations. The overall objective of the Committee's investment strategy is to earn a rate of return over time to satisfy the benefit obligations of the pension plans and to maintain sufficient liquidity to pay benefits and address other cash requirements of the pension plans. The Committee has established an Investment Policy Statement which provides written documentation of the Company's expectations regarding its investment programs for the pension plans, establishes objectives and guidelines for the investment of the plan assets consistent with the Company's financial and benefit-related goals, and outlines criteria and procedures for the ongoing evaluation of the investment program. The Company employs a total return on investment approach whereby a mix of investments among several asset classes are used to maximize long-term return of plan assets while avoiding excessive risk. Investment risk is measured and monitored on an ongoing basis through quarterly investment portfolio reviews, and annual liability measurements. The Company's pension plan weighted-average asset allocations at June 30, 2020 2019 Target June 30 Asset Category Allocation 2020 2019 Equity securities 51 % 47 % 49 % Debt securities 40 % 44 % 42 % Real estate 9 % 9 % 9 % 100 % 100 % 100 % Due to market conditions and other factors, actual asset allocation may 98,211 $544 0.7% June 30, 2020 98,211 $1,483 1.7% June 30, 2019. The U.S. plans have a long-term return assumption of 6.10%. 5.89%. Fair value is defined as the price that would be received on the sale of an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The inputs used to measure fair value are classified into the following hierarchy: Level I Unadjusted quoted prices in active markets for identical instruments Level II Unadjusted quoted prices in active markets for similar instruments, or Unadjusted quoted prices for identical or similar instruments in markets that are not Other inputs that are observable in the market or can be corroborated by observable market data Level III Use of one The following table presents plan assets using the fair value hierarchy as of June 30, 2020: Total Level I Level II Level III Cash and cash equivalents $ 920 $ 920 $ - $ - Equity securities: Company common stock (a) 544 544 - - Common stock (a) 14,551 14,551 - - Mutual funds (b) 7,916 7,916 - - Annuity contracts (c) 6,095 - - 6,095 Total $ 30,026 $ 23,931 $ - $ 6,095 Investments Measured at Net Asset Value (d) 53,258 Total $ 83,284 The following table presents plan assets using the fair value hierarchy as of June 30, 2019: Total Level I Level II Level III Cash and cash equivalents $ 971 $ 971 $ - $ - Equity securities: Company common stock (a) 1,483 1,483 - - Common stock (a) 16,713 16,713 - - Mutual funds (b) 7,963 7,963 - - Annuity contracts (c) 6,171 - - 6,171 Total $ 33,301 $ 27,130 $ - $ 6,171 Investments Measured at Net Asset Value (d) 53,990 Total $ 87,291 (a) Common stock is valued at the closing price reported on the active market on which the individual securities are traded. These securities include U.S. equity securities invested in companies that are traded on exchanges inside the U.S. and international equity securities invested in companies that are traded on exchanges outside the U.S. (b) Mutual funds are valued at the daily closing price as reported by the fund. Mutual funds held by the Company's funded benefit plans are open-end mutual funds that are registered with the Securities Exchange Commission. These funds are required to publish their daily net asset value (“NAV”) and to transact at that price. The mutual funds held by the Company's funded benefit plans are deemed to be actively traded. (c) Annuity contracts represent contractual agreements in which payments are made to an insurance company, which agrees to pay out an income or lump sum amount at a later date. Annuity contracts are valued at the net present value of future cash flows. (d) In accordance with ASC 820 10, not The following table sets forth additional disclosures for the fair value measurement of the fair value of pension plan assets that calculate fair value based on NAV per share practical expedient as of June 30, 2020 June 30, 2019: 2020 2019 Fixed income funds $ 33,032 $ 33,568 International equity securities 2,840 3,168 Real estate 7,186 7,069 Hedged equity mutual funds 10,200 10,185 Total $ 53,258 $ 53,990 The following tables present a reconciliation of the fair value measurements using significant unobservable inputs (Level III) as of June 30, 2020 2019: 2020 2019 Beginning balance $ 6,171 $ 6,113 Actual return on plan assets: Relating to assets still held at reporting date 75 216 Purchases, sales and settlements, net (151 ) (158 ) Ending balance $ 6,095 $ 6,171 Cash Flows Contributions The Company expects to contribute $2,346 2021. Estimated Future Benefit Payments The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid: Other Pension Postretirement Benefits Benefits 2021 $ 8,944 $ 1,094 2022 8,230 843 2023 7,936 769 2024 7,547 693 2025 7,197 608 Years 2026 - 2030 32,605 2,273 The Company does not The Company sponsors defined contribution plans covering substantially all domestic employees and certain foreign employees. These plans provide for employer contributions based primarily on employee participation. The total expense under the plans was $1,949 $2,276 2020 2019,

Note O - Income Taxes

Note O - Income Taxes	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Income Tax Disclosure [Text Block]	O . INCOME TAXES United States and foreign (loss) income before income taxes and minority interest were as follows: 2020 2019 United States $ (29,332 ) $ 7,059 Foreign (14,408 ) 7,448 $ (43,740 ) $ 14,507 The (benefit) provision for income taxes is comprised of the following: 2020 2019 Currently payable: Federal $ (149 ) $ 248 State 30 261 Foreign 4,022 (3,644 ) 3,903 (3,135 ) Deferred: Federal (5,673 ) 920 State (860 ) (7 ) Foreign (1,539 ) 5,933 (8,072 ) 6,846 $ (4,169 ) $ 3,711 The components of the net deferred tax asset as of June 30 2020 2019 Deferred tax assets: Retirement plans and employee benefits $ 7,934 $ 7,732 Foreign tax credit carryforwards 7,429 6,296 Federal tax credits 1,585 1,057 State net operating loss and other state credit carryforwards 1,696 1,269 Federal net operating loss 1,607 - Inventory 205 757 Reserves 1,056 765 Foreign NOL carryforwards 555 775 Accruals 823 339 Right of use assets - operating leases 3,920 3,691 Disallowed interest 418 - Disallowed PPP expenses 1,320 - Other assets 832 656 29,380 23,337 Deferred tax liabilities: Property, plant and equipment 3,231 3,432 Intangibles 3,306 5,345 Long term operating lease obligations 3,855 3,617 Other liabilities 44 194 10,436 12,588 Valuation allowance - - Total net deferred tax assets $ 18,944 $ 10,749 At June 30, 2020 $7,655 $23,132 2023 2040. 2020 $7,655 $9,410 $975, 2026 2040. The Company maintains valuation allowances when it is more likely than not not not not Following is a reconciliation of the applicable U.S. federal income taxes to the actual income taxes reflected in the statements of operations: 2020 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 $ (4,169 ) $ 3,711 On December 22, 2017, December 31, 2017, 2018. not 2019. 2019 Executive Compensation Limitations: 162 162 $1,000 three Global Intangible Low Taxed Income (“GILTI”): 10% Foreign Derived Intangible Income (“FDII”): The Company has not no $1,729 $6,208 June 30, 2020 June 30, 2019, Annually, the company files income tax returns in various taxing jurisdictions inside and outside the United States. In general, the tax years that remain subject to examination are 2016 2020 2016 The Company has approximately $918 $938 June 30, 2020 June 30, 2019, twelve 2010 2013. Below is a reconciliation of beginning and ending amount of unrecognized tax benefits as of June 30: 2020 2019 Unrecognized tax benefits, beginning of year $ 938 $ 816 Additions based on tax positions related to the prior year 17 31 Additions based on tax positions related to the current year 87 91 Reductions based on tax positions related to the prior year (19 ) - Subtractions due to statutes closing (105 ) - Unrecognized tax benefits, end of year $ 918 $ 938 Substantially all of the Company's unrecognized tax benefits as of June 30, 3020, June 30, 2020 2019, $185 $148, not

Note P - Contingencies

Note P - Contingencies	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	P . CONTINGENCIES The Company is involved in litigation of which the ultimate outcome and liability to the Company, if any, are not not

Note Q - Restructuring of Opera

Note Q - Restructuring of Operations and Other Operating Income	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Restructuring, Impairment, and Other Activities Disclosure [Text Block]	Q . RESTRUCTURING OF OPERATIONS AND OTHER OPERATING INCOME Restructuring expenses The Company has implemented various restructuring programs in response to unfavorable macroeconomic trends in certain of the Company's markets since the fourth 2015. These actions resulted in restructuring charges of $1,953 $1,179 2020 2019, Restructuring activities since June 2015 207 June 30, 2020 $12,405. During the second 2020, $2,185, $1,000. $3,185 June 30, 2020. The following is a roll-forward of restructuring activity: Accrued restructuring liability, June 30, 2018 $ 90 Additions 1,179 Payments and adjustments (1,269 ) Accrued restructuring liability, June 30, 2019 - Additions 5,138 Payments and adjustments (5,054 ) Accrued restructuring liability, June 30, 2020 $ 84 Other Operating Income – Sale of Mill Log Business On February 7, 2019, one $1,374 2019. $6,298, $592. March 4, 2019 $7,658, $5,158 $2,500 March 4, 2020. June 30, 2020, $500, $1,200 $800 $768, 2019. Other Operating Income – Fair Value Adjustment of Contingent Consideration As discussed in Note B, Acquisition of Veth Propulsion Holding B.V., the Company issued a contingent consideration as part of the Veth Propulsion acquisition; the fair value at acquisition date was $2,921. On May 13, 2019, 139,347 $1,991 805, not $809, 2019.

Note R - Earnings Per Share

Note R - Earnings Per Share	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Earnings Per Share [Text Block]	R . EARNINGS PER SHARE The Company calculates basic earnings per share based upon the weighted average number of common shares outstanding during the period, while the calculation of diluted earnings per share includes the dilutive effect of potential common shares outstanding during the period. The calculation of diluted earnings per share excludes all potential common shares if their inclusion would have an anti-dilutive effect. Restricted stock award recipients under the 2010 two The components of basic and diluted earnings per share were as follows: 2020 2019 Basic: Net (loss) income $ (39,571 ) $ 10,796 Less: Net earnings attributable to noncontrolling interest (246 ) (123 ) Less: Undistributed earnings attributable to unvested shares - (148 ) Net (loss) income available to Twin Disc shareholders (39,817 ) 10,525 Weighted average shares outstanding - basic 13,153 12,571 Basic (Loss) Income Per Share: Net (loss) income per share - basic $ (3.03 ) $ 0.84 Diluted: Net (loss) income $ (39,571 ) $ 10,796 Less: Net earnings attributable to noncontrolling interest (246 ) (123 ) Less: Undistributed earnings attributable to unvested shares - (148 ) Net (loss) income available to Twin Disc shareholders (39,817 ) 10,525 Weighted average shares outstanding - basic 13,153 12,571 Effect of dilutive stock awards - 111 Weighted average shares outstanding - diluted 13,153 12,682 Diluted (Loss) Income Per Share: Net (loss) income per share - diluted $ (3.03 ) $ 0.83 The following potential common shares were excluded from diluted EPS for the year ended June 30, 2020 167,848 231,379 37,950 The following potential common shares were excluded from diluted EPS for the year ended June 30, 2019 80,164 172,637 13,123 3,483

Note S - Derivative Financial I

Note S - Derivative Financial Instruments	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Derivative Instruments and Hedging Activities Disclosure [Text Block]	S . D ERIVATIVE FINANCIAL INSTRUMENTS The Company reports all derivative instruments on its consolidated balance sheets at fair value and establishes criteria for designation and effectiveness of transactions entered into for hedging purposes. As a global organization, the Company faces exposure to market risks, such as fluctuations in foreign currency exchange rates, interest rates and commodity prices. To manage the volatility relating to these exposures, the Company enters into various derivative instruments from time to time under its risk management policies. The Company designates derivative instruments as hedges on a transaction basis to support hedge accounting. The changes in fair value of these hedging instruments offset in part or in whole corresponding changes in the fair value or cash flows of the underlying exposures being hedged. The Company assesses the initial and ongoing effectiveness of its hedging relationships in accordance with its policy. The Company does not no Interest Rate Swaps Designated as Cash Flow Hedges The primary purpose of the Company's cash flow hedging activities is to manage the potential changes in value associated with interest payments on the Company's LIBOR-based indebtedness. The Company records gains and losses on interest rate swap contracts qualifying as cash flow hedges in accumulated other comprehensive loss to the extent that these hedges are effective and until the Company recognizes the underlying transactions in net earnings, at which time these gains and losses are recognized in interest expense on its consolidated statements of operations and comprehensive (loss) income. Cash flows from derivative financial instruments are classified as cash flows from financing activities on the consolidated statements of cash flows. These contracts generally have original maturities of greater than twelve Net unrealized after-tax losses related to cash flow hedging activities that were included in accumulated other comprehensive loss were $1,104 $509 June 30, 2020 2019, The Company estimates that $392 twelve Foreign Currency Forward Contracts Not The Company primarily enters into forward exchange contracts to reduce the earnings and cash flow impact of non-functional currency denominated receivables and payables. These contracts are highly effective in hedging the cash flows attributable to changes in currency exchange rates. Gains and losses resulting from these contracts offset the foreign exchange gains or losses on the underlying assets and liabilities being hedged. The maturities of the forward exchange contracts generally coincide with the settlement dates of the related transactions. Gains and losses on these contracts are recorded in other expense, net in the consolidated statement of operations and comprehensive (loss) income as the changes in the fair value of the contracts are recognized and generally offset the gains and losses on the hedged items in the same period. The primary currency to which the Company was exposed in fiscal 2020 2019 June 30, 2020, one one $1,247 7 $9 June 30, 2020. no June 30, 2019. Other Derivative Instruments The Company does not not Fair Value of Derivative Instruments The Company's interest rate swaps and foreign currency forward contracts are recorded at fair value on the consolidated balance sheets using a discounted cash flow analysis that incorporates observable market inputs. These market inputs include foreign currency spot and forward rates, and various interest rate curves, and are obtained from pricing data quoted by various banks, third 2 Counterparties to these foreign currency forward contracts have at least an investment grade rating. Credit ratings on some of the Company's counterparties may The fair value of derivative instruments included in the consolidated balance sheets at June 30 Balance Sheet Location 2020 2019 Derivatives designated as hedges: Interest rate swaps Accrued liabilities $ 392 $ 122 Interest rate swaps Other long-term liabilities 1,052 544 The impact of the Company's derivative instruments on the consolidated statement of operations and comprehensive (loss) income for the years ended June 30 Statement of Comprehensive (Loss) Income Location 2020 2019 Derivatives designated as hedges: Interest rate swaps Interest expense $ 171 $ 1 Interest rate swaps Unrealized loss on cash flow hedge (595 ) (509 ) Derivatives not designated as hedges: Foreign currency forward contracts Other income (expense), net $ (9 ) $ 4

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]	T WIN DISC, INCORPORATED AND SUBSIDIARIES SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS F or the years ended June 30, 20 20 and 20 1 9 ( i n thousands) Balance at Charged to Balance at Beginning Costs and End of Description of Period Expenses Deductions (1) Period 2020: Allowance for losses on accounts receivable $ 1,582 $ 399 $ 241 $ 1,740 Reserve for inventory obsolescence $ 10,463 $ 1,532 $ 2,132 $ 9,863 2019: Allowance for losses on accounts receivable $ 1,478 $ 236 $ 132 $ 1,582 Reserve for inventory obsolescence $ 8,427 $ 1,934 $ (102 ) $ 10,463 ( 1

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	Consolidation Principles 2020, not
Use of Estimates, Policy [Policy Text Block]	Management Estimates--
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Translation of Foreign Currencies $570 $681 2020 2019,
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash three not
Receivable [Policy Text Block]	Accounts Receivable $1,740 $1,582 June 30, 2020 2019, may may
Fair Value of Financial Instruments, Policy [Policy Text Block]	Fair Value of Financial Instruments . 1 2 June 30, 2020. June 30, 2020. 2
Derivatives, Policy [Policy Text Block]	Derivative Financial Instruments -
Inventory, Policy [Policy Text Block]	Inventories first first first
Property, Plant and Equipment, Policy [Policy Text Block]	Property, Plant and Equipment and Depreciation 10 40 5 15 not
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]	Impairment of Long-lived Assets may not may third
Goodwill and Intangible Assets, Policy [Policy Text Block]	Goodwill and Other Intangibles fourth may not A significant amount of judgment is involved in determining if an indicator of impairment has occurred. Such indicators may Goodwill impairment charges are recorded using a simplified one The Company reviews goodwill for impairment on a reporting unit basis annually as of the first fourth may not The Company conducted interim qualitative assessments throughout the year. In the third 2020, 19 March 27, 2020 $25,380, The fair value of the Company's other intangible assets with indefinite lives, primarily tradenames, is estimated using the relief-from-royalty method, which requires assumptions related to projected revenues; assumed royalty rates that could be payable if the Company did not third 2020, 19 1 March 27, 2020, $2,223. fourth 2020, not Changes in circumstances, existing at the measurement date or at other times in the future, or in the numerous estimates associated with management's judgments, assumptions and estimates made in assessing the fair value of goodwill and other indefinite-lived intangibles, could result in an impairment charge in the future. The Company will continue to monitor all significant estimates and impairment indicators, and will perform interim impairment reviews as necessary. Any cost incurred to extend or renew the term of an indefinite lived intangible asset are expensed as incurred.
Income Tax, Policy [Policy Text Block]	Income Taxes not not not
Revenue [Policy Text Block]	Revenue Recognition five 1 2 3 4 5 not not no Goods sold to third
Shipping and Handling, Fees and Costs [Policy Text Block]	Shipping and Handling Fees and Costs
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Adopted Accounting Standards a. In June 2018, 2018 07 July 1, 2019. not New Accounting Releases a. In June 2016, 2016 13 2018 19, 2019 04 2019 05 326 326 December 15, 2019 ( 2021 326 not b. In August 2018, 2018 13 820, December 15, 2019 ( 2021 c. In August 2018, 2018 14 December 15, 2020 ( 2021 d. In December 2019, 2019 12 December 15, 2020 ( 2022 e. In March 2020, 2020 04 March 12, 2020, may December 31, 2022.

Note B - Acquisition of Veth _2

Note B - Acquisition of Veth Propulsion Holding BV (Tables)	12 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule of Business Acquisitions by Acquisition, Consideration Transferred [Table Text Block]	Cash, paid at closing and after agreed-upon working capital adjustments $ 59,407 Fair value of contingent consideration at acquisition date 2,921 Total $ 62,328
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	Cash, including restricted cash $ 1,078 Accounts receivable and other current assets 10,437 Inventories 26,862 Property, plant and equipment 2,661 Intangibles (a) 26,500 Accounts payable and accrued liabilities (21,208 ) Deferred tax liability (8,001 ) Total net assets acquired 38,329 Goodwill (b) 23,999 Total consideration $ 62,328

Note C - Inventories (Tables)

Note C - Inventories (Tables)	12 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule of Inventory, Current [Table Text Block]	2020 2019 Finished parts $ 62,394 $ 57,682 Work in process 17,844 23,812 Raw materials 40,369 44,399 $ 120,607 $ 125,893

Note D - Property, Plant and _2

Note D - Property, Plant and Equipment (Tables)	12 Months Ended
	Jun. 30, 2020
Notes Tables
Property, Plant and Equipment [Table Text Block]	2020 2019 Land $ 6,589 $ 6,479 Buildings 48,168 47,627 Machinery and equipment 164,039 158,183 218,796 212,289 Less: accumulated depreciation (146,064 ) (141,031 ) $ 72,732 $ 71,258

Note E - Goodwill and Other I_2

Note E - Goodwill and Other Intangibles (Tables)	12 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule of Goodwill [Table Text Block]	Net Book Value Rollforward Net Book Value By Gross Carrying Amount Accumulated Impairment Net Book European European Industrial Balance at June 30, 2018 $ 16,514 $ (13,822 ) $ 2,692 $ - $ 2,692 Acquisition 23,999 - 23,999 23,999 - Translation adjustment (737 ) - (737 ) (628 ) (109 ) Balance at June 30, 2019 39,776 (13,822 ) 25,954 23,371 2,583 Impairment - (25,380 ) (25,380 ) (22,822 ) (2,558 ) Translation adjustment (574 ) - (574 ) (549 ) (25 ) Balance at June 30, 2020 $ 39,202 $ (39,202 ) $ - $ - $ -
Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]	Net Book Value Rollforward Net Book Value By Asset Type Gross Carrying Amount Accumulated Net Book Customer Relationships Technology Know-how Trade Name Other Balance at June 30, 2018 $ 13,485 $ (11,781 ) $ 1,704 $ - $ - $ 1,288 $ 416 Addition 236 - 236 - - - 236 Acquistion 26,500 - 26,500 16,300 8,400 1,800 - Amortization - (2,653 ) (2,653 ) (1,123 ) (1,172 ) (261 ) (97 ) Translation adjustment (634 ) - (634 ) (334 ) (203 ) (94 ) (3 ) Balance at June 30, 2019 39,587 (14,434 ) 25,153 14,843 7,025 2,733 552 Addition 92 - 92 - - - 92 Amortization - (4,532 ) (4,532 ) (3,003 ) (1,139 ) (232 ) (158 ) Impairment - (1,306 ) (1,306 ) - - (1,080 ) (226 ) Translation adjustment (434 ) - (434 ) (286 ) (102 ) (33 ) (13 ) Balance at June 30, 2020 $ 39,245 $ (20,272 ) $ 18,973 $ 11,554 $ 5,784 $ 1,388 $ 247
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Fiscal Year 2021 $ 3,173 2022 2,989 2023 2,827 2024 2,679 2025 2,495 Thereafter 4,810

Note F - Accrued Liabilities (T

Note F - Accrued Liabilities (Tables)	12 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]	2020 2019 Customer deposits $ 11,541 $ 14,924 Salaries and wages 5,116 6,982 Distributor rebates 3,769 2,943 Retirement benefits 3,559 2,730 Warranty 3,520 3,034 Other 8,875 11,033 $ 36,380 $ 41,646

Note G - Warranty (Tables)

Note G - Warranty (Tables)	12 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule of Product Warranty Liability [Table Text Block]	2020 2019 Reserve balance, July 1 $ 3,736 $ 4,407 Current period expense and adjustments 10,369 3,323 Payments or credits to customers (9,629 ) (3,953 ) Translation adjustment (16 ) (41 ) Reserve balance, June 30 $ 4,460 3,736

Note H - Debt (Tables)

Note H - Debt (Tables)	12 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule of Debt [Table Text Block]	2020 2019 Credit Agreement Debt Revolving loans (expire June 2023) $ 16,641 $ 22,666 Term loan (due March 2026) 17,500 19,500 PPP loan 8,200 - Other 246 325 Subtotal 42,587 42,491 Less: current maturities (4,691 ) (2,000 ) Total long-term debt $ 37,896 40,491
Schedule of Maturities of Long-term Debt [Table Text Block]	Fiscal Year 2021 $ 4,691 2022 6,672 2023 18,684 2024 2,016 2025 2,000 Thereafter 8,524 $ 42,587

Note I - Lease Obligations (Tab

Note I - Lease Obligations (Tables)	12 Months Ended
	Jun. 30, 2020
Notes Tables
Lease, Cost [Table Text Block]	2020 2019 Finance lease cost: Amortization of right-of-use assets $ 188 $ 27 Interest on lease liabilities 56 8 Operating lease cost 3,137 3,348 Short-term lease cost 64 40 Variable lease cost 58 37 Total lease cost 3,503 3,460 Less: Sublease income (212 ) (222 ) Net lease cost $ 3,291 $ 3,238
Operating and Finance Leases, Other Disclosures [Table Text Block]	2020 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 3,141 $ 3,338 Operating cash flows from finance leases 167 18 Financing cash flows from finance leases 56 9 Right-of-use-assets obtained in exchange for lease obligations: Operating leases 2,757 13,875 Finance leases 592 553 Weighted average remaining lease term (years): Operating leases 10.7 11.1 Finance lease 4.0 4.8 Weighted average discount rate: Operating leases 7.4 % 7.7 % Finance leases 6.2 % 7.3 %
Schedule of Future Minimum Rental Payments for Operating Leases and Finance Lease, Liability, Maturity [Table Text Block]	Operating Leases Finance Leases 2021 $ 2,724 $ 284 2022 2,233 284 2023 1,988 275 2024 1,793 234 2025 1,567 31 Thereafter 10,930 - Total future lease payments 21,235 1,108 Less: Amount representing interest (6,773 ) (118 ) Present value of future payments $ 14,462 $ 990
Assets and Liabilities, Lessee [Table Text Block]	Balance Sheet Location 2020 2019 Lease Assets Operating lease right-of-use assets Property, plant and equipment, net $ 14,448 $ 14,138 Finance lease right-of-use assets Property, plant and equipment, net 959 545 Lease Liabilities Operating lease liabilities Accrued liabilities $ 1,724 $ 1,933 Operating lease liabilities Lease obligations 12,738 12,197 Finance lease liabilities Accrued liabilities 233 104 Finance lease liabilities Lease obligations 757 449

Note J - Shareholders' Equity (

Note J - Shareholders' Equity (Tables)	12 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule of Stockholders Equity [Table Text Block]	2020 2019 Translation adjustments $ 3,454 $ 4,439 Net loss on cash flow hedge derivatives, net of income taxes of $341 and $156, respectively (1,104 ) (509 ) Benefit plan adjustments, net of income taxes of $13,316 and $12,707 respectively (43,576 ) (41,901 ) Accumulated other comprehensive loss $ (41,226 ) $ (37,971 )
Reconciliation For The Changes In Accumulated Other Comprehensive Income Loss Net Of Tax By Component [Table Text Block]	Translation Benefit Plan Cash Flow Adjustment Adjustment Hedges Balance at June 30, 2019 $ 4,439 $ (41,901 ) $ (509 ) Other comprehensive loss before reclassifications (985 ) (3,792 ) (595 ) Amounts reclassified from accumulated other comprehensive loss - 2,117 - Net current period other comprehensive loss (985 ) (1,675 ) (595 ) Balance at June 30, 2020 $ 3,454 $ (43,576 ) $ (1,104 ) Translation Benefit Plan Cash Flow Adjustment Adjustment Hedges Balance at June 30, 2018 $ 7,085 $ (30,877 ) $ - Other comprehensive loss before reclassifications (2,646 ) (6,068 ) (509 ) Release stranded tax effects - (6,903 ) - Amounts reclassified from accumulated other comprehensive loss - 1,947 - Net current period other comprehensive loss (2,646 ) (11,024 ) (509 ) Balance at June 30, 2019 $ 4,439 $ (41,901 ) $ (509 )
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]	Amount Reclassified Amortization of benefit plan items Actuarial losses $ (2,982 ) Transition asset and prior service benefit 195 Total before tax benefit (2,787 ) Tax benefit 670 Total reclassification net of tax $ (2,117 ) Amount Reclassified Amortization of benefit plan items Actuarial losses $ (2,710 ) Transition asset and prior service benefit 176 Total before tax benefit (2,534 ) Tax benefit 587 Total reclassification net of tax $ (1,947 )

Note K - Business Segments an_2

Note K - Business Segments and Foreign Operations (Tables)	12 Months Ended
	Jun. 30, 2020
Notes Tables
Revenue from External Customers by Products and Services [Table Text Block]	2020 2019 Industrial $ 26,343 $ 34,042 Land-based transmissions 62,697 112,793 Marine and propulsion systems 152,501 150,237 Other 5,297 5,591 Total $ 246,838 $ 302,663 Manufacturing Distribution Elimination of Intercompany Sales Total Industrial $ 24,143 $ 5,634 $ (3,434 ) $ 26,343 Land-based transmissions 63,523 25,699 (26,525 ) 62,697 Marine and propulsion systems 139,833 59,212 (46,544 ) 152,501 Other 66 5,279 (48 ) 5,297 Total $ 227,565 $ 95,824 $ (76,551 ) $ 246,838 Manufacturing Distribution Elimination of Intercompany Sales Total Industrial $ 30,393 $ 8,079 $ (4,430 ) $ 34,042 Land-based transmissions 111,260 30,483 (28,950 ) 112,793 Marine and propulsion systems 138,704 62,329 (50,796 ) 150,237 Other 71 5,590 (70 ) 5,591 Total $ 280,428 $ 106,481 $ (84,246 ) $ 302,663
Schedule of Segment Reporting Information, by Segment [Table Text Block]	2020 Manufacturing Distribution Total Net Sales $ 227,565 $ 95,824 $ 323,389 Intra-segment sales 14,230 12,889 27,119 Inter-segment sales 43,854 5,578 49,432 Interest income 346 22 368 Interest expense 2,128 - 2,128 Income taxes (2,027 ) 268 (1,759 ) Depreciation and amortization 11,151 379 11,530 Net (loss) income attributable to Twin Disc (31,603 ) 553 (31,050 ) Assets 365,417 43,118 408,535 Expenditures for segment assets 9,615 734 10,349 2019 Manufacturing Distribution Total Net Sales $ 280,428 $ 106,481 $ 386,909 Intra-segment sales 20,384 14,026 34,410 Inter-segment sales 46,078 3,758 49,836 Interest income 1,154 26 1,180 Interest expense 3,086 (37 ) 3,049 Income taxes 7,939 353 8,292 Depreciation and amortization 12,893 402 13,295 Net income attributable to Twin Disc 25,062 248 25,310 Assets 384,612 46,076 430,688 Expenditures for segment assets 10,725 663 11,388
Reconciliation of Revenue and Operating Profit (Loss) from Segments to Consolidated [Table Text Block]	2020 2019 Net sales: Total net sales from reportable segments $ 323,389 $ 386,909 Elimination of inter-company sales (76,551 ) (84,246 ) Total consolidated net sales $ 246,838 $ 302,663 Net (loss) income attributable to Twin Disc: Total net (loss) income from reportable segments $ (31,050 ) $ 25,310 Other adjustments and corporate expenses (8,767 ) (14,637 ) Total consolidated net (loss) income attributable to Twin Disc $ (39,817 ) $ 10,673
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table Text Block]	Segment Consolidated Totals Adjustments Totals 2020 Interest income $ 368 $ (290 ) $ 78 Interest expense 2,128 (268 ) 1,860 Income taxes (1,759 ) (2,410 ) (4,169 ) Depreciation and amortization 11,530 395 11,925 Assets 408,535 (114,408 ) 294,127 Expenditures for segment assets 10,349 350 10,699 2019 Interest income $ 1,180 $ (1,137 ) $ 43 Interest expense 3,049 (1,122 ) 1,927 Income taxes 8,292 (4,581 ) 3,711 Depreciation and amortization 13,295 317 13,612 Assets 430,688 (83,818 ) 346,870 Expenditures for segment assets 11,388 591 11,979
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	2020 2019 Net sales United States $ 83,771 $ 132,467 Netherlands 39,501 31,521 China 26,354 28,772 Austria 12,552 10,464 Australia 12,438 12,463 Italy 11,802 12,755 Canada 5,664 10,875 Other countries 54,756 63,346 Total $ 246,838 $ 302,663 2020 2019 Long-lived assets United States $ 41,996 $ 41,233 Netherlands 12,659 13,186 Belgium 8,363 8,595 Switzerland 6,804 6,810 Italy 1,697 1,894 Other countries 5,205 3,298 Total $ 76,724 $ 75,016

Note L - Stock-based Compensa_2

Note L - Stock-based Compensation (Tables)	12 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule Of Share-based Compensation Shares Available For Future Options [Table Text Block]	2020 2019 2018 LTI Plan 492,591 742,325 2010 Directors' Plan 12,865 61,354

Note N - Pension and Other Po_2

Note N - Pension and Other Postretirement Benefit Plans (Tables)	12 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule of Net Funded Status [Table Text Block]	Other Pension Postretirement Benefits Benefits 2020 2019 2020 2019 Change in benefit obligation: Benefit obligation, beginning of year $ 107,322 $ 105,012 $ 7,451 $ 8,077 Service cost 653 795 17 19 Interest cost 3,305 4,020 219 305 Actuarial loss 3,161 6,718 211 18 Contributions by plan participants 93 103 352 389 Benefits paid (9,014 ) (9,326 ) (1,191 ) (1,357 ) Benefit obligation, end of year $ 105,520 $ 107,322 $ 7,059 $ 7,451 Change in plan assets: Fair value of assets, beginning of year $ 87,291 $ 90,258 $ - $ - Actual return on plan assets 3,541 4,125 - - Employer contribution 1,373 2,131 839 968 Contributions by plan participants 93 103 352 389 Benefits paid (9,014 ) (9,326 ) (1,191 ) (1,357 ) Fair value of assets, end of year $ 83,284 $ 87,291 $ - $ - Funded status $ (22,236 ) $ (20,031 ) $ (7,059 ) $ (7,451 ) Amounts recognized in the balance sheet consist of: Other assets - noncurrent $ - $ 3 $ - $ - Accrued liabilities - current (276 ) (645 ) (1,081 ) (962 ) Accrued retirement benefits - noncurrent (21,960 ) (19,389 ) (5,978 ) (6,489 ) Net amount recognized $ (22,236 ) $ (20,031 ) $ (7,059 ) $ (7,451 ) Amounts recognized in accumulated other comprehensive loss consist of (net of tax): Net transition obligation $ 158 $ 178 $ - $ - Prior service cost 104 144 (697 ) (908 ) Actuarial net loss 43,548 42,185 463 302 Net amount recognized $ 43,810 $ 42,507 $ (234 ) $ (606 )
Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block]	Other Pension Postretirement Benefits Benefits Net transition obligation $ 35 $ - Prior service cost 45 (275 ) Actuarial net loss 3,246 - Net amount to be recognized $ 3,326 (275 )
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Table Text Block]	June 30 2020 2019 Projected and accumulated benefit obligation $ 105,520 $ 102,879 Fair value of plan assets 83,284 82,845
Schedule of Net Benefit Costs [Table Text Block]	Pension Benefits 2020 2019 Service cost $ 648 $ 792 Interest cost 3,304 4,019 Expected return on plan assets (4,894 ) (5,238 ) Amortization of transition obligation 35 34 Amortization of prior service cost 45 64 Amortization of actuarial net loss 2,982 2,710 Net periodic benefit cost $ 2,120 2,381 Other Postretirement Benefits 2020 2019 Service cost $ 17 $ 18 Interest cost 219 304 Amortization of prior service cost (274 ) (274 ) Net periodic benefit cost $ (38 ) $ 48
Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]	Other Postretirement Pension Benefits Net loss $ 4,770 $ 211 Amortization of transition asset (35 ) - Amortization of prior service (cost) benefit (45 ) 275 Amortization of net (loss) gain (2,978 ) - Total recognized in other comprehensive income 1,712 486 Net periodic benefit cost 2,120 (38 ) Total recognized in net periodic benefit cost and other comprehensive income $ 3,832 $ 448 Other Postretirement Pension Benefits Net loss $ 8,098 $ 18 Prior service cost (211 ) - Amortization of transition asset (34 ) - Amortization of prior service (cost) benefit (64 ) 275 Amortization of net (loss) gain (2,711 ) - Total recognized in other comprehensive income 5,078 293 Net periodic benefit cost 2,381 48 Total recognized in net periodic benefit cost and other comprehensive income $ 7,459 $ 341
Defined Benefit Plan, Assumptions [Table Text Block]	Other Pension Benefits Postretirement Benefits Weighted average assumptions used to determine benefit obligations at June 30 2020 2019 2020 2019 Discount rate 2.49 % 3.22 % 2.37 % 3.15 % Expected return on plan assets 5.89 % 6.04 % Other Pension Benefits Postretirement Benefits Weighted average assumptions used to determine net periodic benefit costs for years ended June 30 2020 2019 2020 2019 Discount rate 3.22 % 4.01 % 3.15 % 4.09 % Expected return on plan assets 6.04 % 6.74 %
Schedule of Plan Weighted Average Assets Allocations [Table Text Block]	Target June 30 Asset Category Allocation 2020 2019 Equity securities 51 % 47 % 49 % Debt securities 40 % 44 % 42 % Real estate 9 % 9 % 9 % 100 % 100 % 100 %
Schedule of Allocation of Plan Assets [Table Text Block]	Total Level I Level II Level III Cash and cash equivalents $ 920 $ 920 $ - $ - Equity securities: Company common stock (a) 544 544 - - Common stock (a) 14,551 14,551 - - Mutual funds (b) 7,916 7,916 - - Annuity contracts (c) 6,095 - - 6,095 Total $ 30,026 $ 23,931 $ - $ 6,095 Investments Measured at Net Asset Value (d) 53,258 Total $ 83,284 Total Level I Level II Level III Cash and cash equivalents $ 971 $ 971 $ - $ - Equity securities: Company common stock (a) 1,483 1,483 - - Common stock (a) 16,713 16,713 - - Mutual funds (b) 7,963 7,963 - - Annuity contracts (c) 6,171 - - 6,171 Total $ 33,301 $ 27,130 $ - $ 6,171 Investments Measured at Net Asset Value (d) 53,990 Total $ 87,291 2020 2019 Fixed income funds $ 33,032 $ 33,568 International equity securities 2,840 3,168 Real estate 7,186 7,069 Hedged equity mutual funds 10,200 10,185 Total $ 53,258 $ 53,990
Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block]	2020 2019 Beginning balance $ 6,171 $ 6,113 Actual return on plan assets: Relating to assets still held at reporting date 75 216 Purchases, sales and settlements, net (151 ) (158 ) Ending balance $ 6,095 $ 6,171
Schedule of Expected Benefit Payments [Table Text Block]	Other Pension Postretirement Benefits Benefits 2021 $ 8,944 $ 1,094 2022 8,230 843 2023 7,936 769 2024 7,547 693 2025 7,197 608 Years 2026 - 2030 32,605 2,273

Note O - Income Taxes (Tables)

Note O - Income Taxes (Tables)	12 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]	2020 2019 United States $ (29,332 ) $ 7,059 Foreign (14,408 ) 7,448 $ (43,740 ) $ 14,507
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	2020 2019 Currently payable: Federal $ (149 ) $ 248 State 30 261 Foreign 4,022 (3,644 ) 3,903 (3,135 ) Deferred: Federal (5,673 ) 920 State (860 ) (7 ) Foreign (1,539 ) 5,933 (8,072 ) 6,846 $ (4,169 ) $ 3,711
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	2020 2019 Deferred tax assets: Retirement plans and employee benefits $ 7,934 $ 7,732 Foreign tax credit carryforwards 7,429 6,296 Federal tax credits 1,585 1,057 State net operating loss and other state credit carryforwards 1,696 1,269 Federal net operating loss 1,607 - Inventory 205 757 Reserves 1,056 765 Foreign NOL carryforwards 555 775 Accruals 823 339 Right of use assets - operating leases 3,920 3,691 Disallowed interest 418 - Disallowed PPP expenses 1,320 - Other assets 832 656 29,380 23,337 Deferred tax liabilities: Property, plant and equipment 3,231 3,432 Intangibles 3,306 5,345 Long term operating lease obligations 3,855 3,617 Other liabilities 44 194 10,436 12,588 Valuation allowance - - Total net deferred tax assets $ 18,944 $ 10,749
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	2020 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 $ (4,169 ) $ 3,711
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]	2020 2019 Unrecognized tax benefits, beginning of year $ 938 $ 816 Additions based on tax positions related to the prior year 17 31 Additions based on tax positions related to the current year 87 91 Reductions based on tax positions related to the prior year (19 ) - Subtractions due to statutes closing (105 ) - Unrecognized tax benefits, end of year $ 918 $ 938

Note Q - Restructuring of Ope_2

Note Q - Restructuring of Operations and Other Operating Income (Tables)	12 Months Ended
	Jun. 30, 2020
Notes Tables
Restructuring and Related Costs [Table Text Block]	Accrued restructuring liability, June 30, 2018 $ 90 Additions 1,179 Payments and adjustments (1,269 ) Accrued restructuring liability, June 30, 2019 - Additions 5,138 Payments and adjustments (5,054 ) Accrued restructuring liability, June 30, 2020 $ 84

Note R - Earnings Per Share (Ta

Note R - Earnings Per Share (Tables)	12 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	2020 2019 Basic: Net (loss) income $ (39,571 ) $ 10,796 Less: Net earnings attributable to noncontrolling interest (246 ) (123 ) Less: Undistributed earnings attributable to unvested shares - (148 ) Net (loss) income available to Twin Disc shareholders (39,817 ) 10,525 Weighted average shares outstanding - basic 13,153 12,571 Basic (Loss) Income Per Share: Net (loss) income per share - basic $ (3.03 ) $ 0.84 Diluted: Net (loss) income $ (39,571 ) $ 10,796 Less: Net earnings attributable to noncontrolling interest (246 ) (123 ) Less: Undistributed earnings attributable to unvested shares - (148 ) Net (loss) income available to Twin Disc shareholders (39,817 ) 10,525 Weighted average shares outstanding - basic 13,153 12,571 Effect of dilutive stock awards - 111 Weighted average shares outstanding - diluted 13,153 12,682 Diluted (Loss) Income Per Share: Net (loss) income per share - diluted $ (3.03 ) $ 0.83

Note S - Derivative Financial_2

Note S - Derivative Financial Instruments (Tables)	12 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	Balance Sheet Location 2020 2019 Derivatives designated as hedges: Interest rate swaps Accrued liabilities $ 392 $ 122 Interest rate swaps Other long-term liabilities 1,052 544
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]	Statement of Comprehensive (Loss) Income Location 2020 2019 Derivatives designated as hedges: Interest rate swaps Interest expense $ 171 $ 1 Interest rate swaps Unrealized loss on cash flow hedge (595 ) (509 ) Derivatives not designated as hedges: Foreign currency forward contracts Other income (expense), net $ (9 ) $ 4

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Accounts (Tables)	12 Months Ended
	Jun. 30, 2020
Notes Tables
Valuation Allowances and Reserves [Table Text Block]	Balance at Charged to Balance at Beginning Costs and End of Description of Period Expenses Deductions (1) Period 2020: Allowance for losses on accounts receivable $ 1,582 $ 399 $ 241 $ 1,740 Reserve for inventory obsolescence $ 10,463 $ 1,532 $ 2,132 $ 9,863 2019: Allowance for losses on accounts receivable $ 1,478 $ 236 $ 132 $ 1,582 Reserve for inventory obsolescence $ 8,427 $ 1,934 $ (102 ) $ 10,463

Note A - Basis of Presentatio_2

Note A - Basis of Presentation and Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Mar. 27, 2020	Jun. 30, 2020	Jun. 30, 2019
Foreign Currency Transaction Gain (Loss), before Tax, Total		$ (570)	$ (681)
Accounts Receivable, Allowance for Credit Loss, Ending Balance		1,740	$ 1,582
Goodwill, Impairment Loss	$ 25,380	25,380
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)		$ 2,223
Building and Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)		10 years
Building and Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)		40 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)		5 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)		15 years

Note B - Acquisition of Veth _3

Note B - Acquisition of Veth Propulsion Holding BV (Details Textual) - USD ($) $ in Thousands	May 13, 2019	Jul. 02, 2018	May 13, 2019	Jun. 30, 2020
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year)				8 years
Veth Propulsion [Member]
Business Acquisition, Percentage of Voting Interests Acquired		100.00%
Payments to Acquire Businesses, Gross		$ 58,862	$ 59,407
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	$ 1,991
Stock Issued During Period, Shares, Acquisitions (in shares)	139,347
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred			2,921
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 3,300		$ 3,300
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year)	9 years
Veth Propulsion [Member] | Customer Relationships [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	12 years
Veth Propulsion [Member] | Technology-Based Intangible Assets [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	7 years
Veth Propulsion [Member] | Trade Names [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	10 years

Note B - Acquisition of Veth _4

Note B - Acquisition of Veth Propulsion Holding BV - Consideration Transferred (Details) - Veth Propulsion [Member] - USD ($) $ in Thousands	Jul. 02, 2018	May 13, 2019
Cash, paid at closing and after agreed-upon working capital adjustments	$ 58,862	$ 59,407
Fair value of contingent consideration at acquisition date		2,921
Total		$ 62,328

Note B - Acquisition of Veth _5

Note B - Acquisition of Veth Propulsion Holding BV - Summary of Preliminary Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands		Jun. 30, 2020	Jun. 30, 2019	Jul. 02, 2018	Jun. 30, 2018
Goodwill (b)		$ 0	$ 25,954		$ 2,692
Veth Propulsion [Member]
Cash, including restricted cash				$ 1,078
Accounts receivable and other current assets				10,437
Inventories				26,862
Property, plant and equipment				2,661
Intangibles (a)	[1]			26,500
Accounts payable and accrued liabilities				(21,208)
Deferred tax liability				(8,001)
Total net assets acquired				38,329
Goodwill (b)	[2]			23,999
Total consideration				$ 62,328
[1]	Intangibles consist of customer relationships, technology and know-how and tradenames, with estimated useful lives 12 years, 7 years, and 10 years, respectively, and weighted average remaining useful life of approximately 9 years. The amounts acquired are presented in Note E, Goodwill and Other Intangibles.
[2]	The Company is not able to deduct any of the goodwill for tax purposes.

Note C - Inventories (Details T

Note C - Inventories (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Percentage of LIFO Inventory	50.00%	52.00%
Excess of Replacement or Current Costs over Stated LIFO Value	$ 27,225	$ 25,709
Inventory Valuation Reserves, Ending Balance	$ 9,863	$ 10,463

Note C - Inventories - Inventor

Note C - Inventories - Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Finished parts	$ 62,394	$ 57,682
Work in process	17,844	23,812
Raw materials	40,369	44,399
Total inventories	$ 120,607	$ 125,893

Note D - Property, Plant and _3

Note D - Property, Plant and Equipment (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Depreciation, Total	$ 7,394	$ 6,682

Note D - Property, Plant and _4

Note D - Property, Plant and Equipment - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Land	$ 6,589	$ 6,479
Buildings	48,168	47,627
Machinery and equipment	164,039	158,183
Property, plant and Equipment, Gross	218,796	212,289
Less: accumulated depreciation	(146,064)	(141,031)
Property, plant and Equipment, Net	$ 72,732	$ 71,258

Note E - Goodwill and Other I_3

Note E - Goodwill and Other Intangibles (Details Textual) $ in Thousands		May 13, 2019	Mar. 27, 2020USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Jul. 02, 2018USD ($)	Jun. 30, 2018USD ($)
Goodwill, Ending Balance				$ 0	$ 25,954		$ 2,692
Goodwill, Impairment Loss			$ 25,380	25,380
Impairment of Intangible Assets, Finite-lived				2,223
Goodwill and Intangible Asset Impairment, Total				27,603
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Goodwill and Other Impairment Charge, Amount				$ 1,199
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year)				8 years
Amortization of Intangible Assets, Total				$ 4,532	2,653
Measurement Input, Discount Rate [Member]
Goodwill, Impairment, Weighted Average Discount Rate			0.13
European Propulsion [Member]
Goodwill, Ending Balance					$ 23,371
Goodwill, Impairment Loss				22,822
European Industrial Reporting Unit [Member]
Goodwill, Impairment Loss				$ 2,558
Veth Propulsion [Member]
Goodwill, Ending Balance	[1]					$ 23,999
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	[2]					$ 26,500
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year)		9 years
[1]	The Company is not able to deduct any of the goodwill for tax purposes.
[2]	Intangibles consist of customer relationships, technology and know-how and tradenames, with estimated useful lives 12 years, 7 years, and 10 years, respectively, and weighted average remaining useful life of approximately 9 years. The amounts acquired are presented in Note E, Goodwill and Other Intangibles.

Note E - Goodwill and Other I_4

Note E - Goodwill and Other Intangibles - Goodwill Rollforward (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Mar. 27, 2020	Jun. 30, 2020	Jun. 30, 2019
Balance, goodwill gross carrying amount	$ 39,776	$ 39,776	$ 16,514
Balance, goodwill accumulated impairment		(39,202)	(13,822)
Balance, goodwill net book value	25,954	25,954	2,692
Acquisition, goodwill gross carrying amount			23,999
Translation adjustment, goodwill gross carrying amount		(574)	(737)
Translation adjustment, goodwill net book value		(574)	(737)
Impairment, goodwill accumulated impairment	(25,380)	(25,380)
Balance, goodwill gross carrying amount		39,202	39,776
Balance at June 30, 2019		0	25,954
European Propulsion [Member]
Balance, goodwill net book value	23,371	23,371
Acquisition, goodwill gross carrying amount			23,999
Translation adjustment, goodwill gross carrying amount		(549)	(628)
Translation adjustment, goodwill net book value		(549)	(628)
Impairment, goodwill accumulated impairment		(22,822)
Balance at June 30, 2019			23,371
European Industrial [Member]
Balance, goodwill net book value	$ 2,583	2,583	2,692
Acquisition, goodwill gross carrying amount
Translation adjustment, goodwill gross carrying amount		(25)	(109)
Translation adjustment, goodwill net book value		(25)	(109)
Impairment, goodwill accumulated impairment		(2,558)
Balance at June 30, 2019			$ 2,583

Note E - Goodwill and Other I_5

Note E - Goodwill and Other Intangibles - Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Balance, Definite Intangible Assets Gross Carrying Amount	$ 39,587	$ 13,485
Balance, Definite Intangible Assets Accumulated Amortization/Impairment	(14,434)	(11,781)
Balance at June 30, Definite Intangible Assets Net Book Value	25,153	1,704
Addition, Definite Intangible Assets Gross Carrying Amount	92	236
Addition, Definite Intangible Assets Net Book Value	92	236
Acquistion, Definite Intangible Assets Gross Carrying Amount		26,500
Acquistion, Definite Intangible Assets Net Book Value		26,500
Amortization, Definite Intangible Assets	(4,532)	(2,653)
Amortization, Definite Intangible Assets Net Book Value	(4,532)	(2,653)
Translation adjustment, Definite Intangible Assets Gross Carrying Amount	(434)	(634)
Translation adjustment, Definite Intangible Assets Net Book Value	(434)	(634)
Impairment, Definite Intangible Assets Accumulated Amortization/Impairment	(1,306)
Addition, Definite Intangible Assets Gross Carrying Amount	39,245	39,587
Balance, Definite Intangible Assets Accumulated Amortization/Impairment	(20,272)	(14,434)
Balance at June 30, Definite Intangible Assets Net Book Value	18,973	25,153
Customer Relationships [Member]
Balance at June 30, Definite Intangible Assets Net Book Value	14,843
Addition, Definite Intangible Assets Net Book Value
Acquistion, Definite Intangible Assets Net Book Value		16,300
Amortization, Definite Intangible Assets	(3,003)	(1,123)
Amortization, Definite Intangible Assets Net Book Value	(3,003)	(1,123)
Translation adjustment, Definite Intangible Assets Net Book Value	(286)	(334)
Impairment, Definite Intangible Assets Accumulated Amortization/Impairment
Balance at June 30, Definite Intangible Assets Net Book Value	11,554	14,843
Technology-Based Intangible Assets [Member]
Balance at June 30, Definite Intangible Assets Net Book Value	7,025
Addition, Definite Intangible Assets Net Book Value
Acquistion, Definite Intangible Assets Net Book Value		8,400
Amortization, Definite Intangible Assets	(1,139)	(1,172)
Amortization, Definite Intangible Assets Net Book Value	(1,139)	(1,172)
Translation adjustment, Definite Intangible Assets Net Book Value	(102)	(203)
Impairment, Definite Intangible Assets Accumulated Amortization/Impairment
Balance at June 30, Definite Intangible Assets Net Book Value	5,784	7,025
Trade Names [Member]
Balance at June 30, Definite Intangible Assets Net Book Value	2,733	1,288
Addition, Definite Intangible Assets Net Book Value
Acquistion, Definite Intangible Assets Net Book Value		1,800
Amortization, Definite Intangible Assets	(232)	(261)
Amortization, Definite Intangible Assets Net Book Value	(232)	(261)
Translation adjustment, Definite Intangible Assets Net Book Value	(33)	(94)
Impairment, Definite Intangible Assets Accumulated Amortization/Impairment	(1,080)
Balance at June 30, Definite Intangible Assets Net Book Value	1,388	2,733
Other Intangible Assets [Member]
Balance at June 30, Definite Intangible Assets Net Book Value	552	416
Addition, Definite Intangible Assets Net Book Value	92	236
Acquistion, Definite Intangible Assets Net Book Value
Amortization, Definite Intangible Assets	(158)	(97)
Amortization, Definite Intangible Assets Net Book Value	(158)	(97)
Translation adjustment, Definite Intangible Assets Net Book Value	(13)	(3)
Impairment, Definite Intangible Assets Accumulated Amortization/Impairment	(226)
Balance at June 30, Definite Intangible Assets Net Book Value	$ 247	$ 552

Note E - Goodwill and Other I_6

Note E - Goodwill and Other Intangibles - Estimated Intangibles Amortization Expense (Details) $ in Thousands	Jun. 30, 2020USD ($)
2021	$ 3,173
2022	2,989
2023	2,827
2024	2,679
2025	2,495
Thereafter	$ 4,810

Note F - Accrued Liabilities -

Note F - Accrued Liabilities - Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Customer deposits	$ 11,541	$ 14,924
Salaries and wages	5,116	6,982
Distributor rebates	3,769	2,943
Retirement benefits	3,559	2,730
Warranty	3,520	3,034
Other	8,875	11,033
Total accrued liabilities	$ 36,380	$ 41,646

Note G - Warranty (Details Text

Note G - Warranty (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Standard and Extended Product Warranty Accrual, Increase (Decrease) for Preexisting Warranties, Total	$ 6,233
Product Warranty Accrual, Current	3,520	$ 3,034
Product Warranty Accrual, Noncurrent	$ 940	$ 702
Minimum [Member]
Warranty Period (Month)	1 year
Maximum [Member]
Warranty Period (Month)	2 years

Note G - Warranty - Warranty (D

Note G - Warranty - Warranty (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Reserve balance	$ 3,736	$ 4,407
Current period expense and adjustments	10,369	3,323
Payments or credits to customers	(9,629)	(3,953)
Translation adjustment	(16)	(41)
Reserve balance	$ 4,460	$ 3,736

Note H - Debt (Details Textual)

Note H - Debt (Details Textual) $ in Thousands

Jul. 22, 2020USD ($)

Apr. 17, 2020USD ($)

Jan. 28, 2020USD ($)

Mar. 04, 2019USD ($)

Mar. 03, 2019USD ($)

Sep. 25, 2018USD ($)

Jul. 02, 2018USD ($)

May 13, 2019USD ($)

Jun. 30, 2020USD ($)

Jun. 30, 2019USD ($)

Jun. 30, 2021USD ($)

Mar. 26, 2021USD ($)

Dec. 25, 2020USD ($)

Sep. 25, 2020USD ($)

Mar. 27, 2020

Dec. 27, 2019

Dec. 26, 2019

Jun. 29, 2018USD ($)

Proceeds from Long-term Lines of Credit

$ 99,262

$ 147,854

Proceeds from Sale Leaseback Agreement

329

Principal Paid on Sale Leaseback Liabilities

$ 74

Minimum [Member]

Sale Leaseback Transactions, Term (Year)

3 years

Sale Leaseback Transactions, Implied Interest Rate

7.00%

Maximum [Member]

Sale Leaseback Transactions, Term (Year)

5 years

Sale Leaseback Transactions, Implied Interest Rate

25.00%

Prior Parent of Veth Propulsion [Member]

Repayments of Debt

$ 1,865

Bank of Montreal [Member] | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]

Derivative, Notional Amount

$ 17,500

Derivative, Maturity Date

Mar. 4, 2026

Veth Propulsion [Member]

Payments to Acquire Businesses, Gross

58,862

$ 59,407

Line of Credit [Member]

Line of Credit Facility, Maximum Borrowing Capacity

$ 943

$ 952

Debt, Weighted Average Interest Rate

5.60%

5.00%

The 2018 Credit Agreement [Member]

Repayments of Debt

$ 32,210

Paycheck Protection Program CARES Act [Member] | Promissory Note [Member]

Proceeds from Issuance of Long-term Debt, Total

$ 8,200

BMO [Member] | The 2018 Credit Agreement [Member]

Proceeds from Issuance of Debt

60,729

Debt Instrument, Covenant, Minimum Cumulative EBITDA

$ 1,000

BMO [Member] | The 2018 Credit Agreement [Member] | Subsequent Event [Member]

Debt Instrument, Percentage of Equity Interest in Domestic Subsidiaries Pledged

100.00%

Debt Instrument, Percentage of Equity Interest in Foreign Subsidiaries Pledged

65.00%

Debt Instrument, Debt Default, Percentage of Letter of Credit Obligations Required to Cash Collateralize

105.00%

BMO [Member] | The 2018 Credit Agreement [Member] | Forecast [Member]

Debt Instrument, Covenant, Minimum Cumulative EBITDA

$ 10,000

$ 6,000

$ 2,500

$ 1,000

BMO [Member] | The 2018 Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]

Debt Instrument, Basis Spread on Variable Rate

1.25%

BMO [Member] | The 2018 Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]

Debt Instrument, Basis Spread on Variable Rate

3.375%

BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member]

Debt Agreement, Maximum Borrowing Capacity

$ 20,000

Proceeds from Issuance of Debt

9,151

35,000

Long-term Debt, Gross

$ 10,849

Debt Instrument, Periodic Payment, Total

$ 500

Debt Instrument, Covenant, Funded Debt to EBITDA Ratio

3

Debt Instrument, Covenant, Minimum Tangible Net Worth Plus Half of Net Income

$ 100,000

$ 70,000

Debt Instrument, Interest Rate During Period

3.64%

Debt Instrument, Maturity Date

Jan. 2, 2020

BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member] | Subsequent Event [Member]

Debt Instrument, Principal Payment Deferred

$ 1,000

BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member] | Minimum [Member]

Debt Instrument, Covenant, Funded Debt to EBITDA Ratio

3.5

BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member] | Maximum [Member]

Debt Instrument, Covenant, Funded Debt to EBITDA Ratio

3.25

BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]

Debt Instrument, Basis Spread on Variable Rate

3.00%

BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]

Debt Instrument, Basis Spread on Variable Rate

1.375%

BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]

Debt Instrument, Basis Spread on Variable Rate

3.375%

2.375%

BMO [Member] | The 2018 Credit Agreement [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] | Subsequent Event [Member]

Debt Instrument, Basis Spread on Variable Rate

3.875%

BMO [Member] | The 2018 Credit Agreement [Member] | Revolving Credit Facility [Member]

Debt Agreement, Maximum Borrowing Capacity

$ 35,000

Line of Credit Facility, Maximum Borrowing Capacity

$ 50,000

Proceeds from Long-term Lines of Credit

$ 25,729

BMO [Member] | The 2018 Credit Agreement [Member] | Revolving Credit Facility [Member] | Subsequent Event [Member]

Line of Credit Facility, Maximum Borrowing Capacity

$ 45,000

BMO [Member] | The 2018 Credit Agreement Amendment [Member]

Debt Instrument, Covenant, Maximum Allowable Extraordinary Expenses

$ 3,900,000

BMO [Member] | The 2018 Credit Agreement Amendment [Member] | Revolving Credit Facility [Member]

Debt Instrument, Interest Rate During Period

2.72%

Line of Credit Facility, Current Borrowing Capacity

$ 43,681

Line of Credit Facility, Remaining Borrowing Capacity

$ 27,040

BMO [Member] | The 2018 Credit Agreement Amendment [Member] | Revolving Credit Facility [Member] | Maximum [Member]

Debt Instrument, Covenant, Allowable Ratio, Current Quarter

4

5

4

3

BMO [Member] | The 2018 Credit Agreement Amendment [Member] | Revolving Credit Facility [Member] | Maximum [Member] | Forecast [Member]

Debt Instrument, Covenant, Allowable Ratio, Current Quarter

3

3.5

Note H - Debt - Long-term Debt

Note H - Debt - Long-term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Long-term debt	$ 42,587	$ 42,491
Less: current maturities	(4,691)	(2,000)
Total long-term debt	37,896	40,491
Revolving Loan [Member]
Long-term debt	16,641	22,666
Term Loan [Member]
Long-term debt	17,500	19,500
Promissory Note [Member] | Paycheck Protection Program CARES Act [Member]
Long-term debt	8,200
Other Long-Term Debt [Member]
Long-term debt	$ 246	$ 325

Note H - Debt - Schedule of Mat

Note H - Debt - Schedule of Maturities of Long-term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
2021	$ 4,691
2022	6,672
2023	18,684
2024	2,016
2025	2,000
Thereafter	8,524
Total	$ 42,587	$ 42,491

Note I - Lease Obligations (Det

Note I - Lease Obligations (Details Textual) - USD ($) $ in Thousands	Jul. 31, 2020	Jun. 30, 2020
Finance Lease, Liability, Total		$ 990
Lease Agreement for Manufacturing, Assembly and Office Facility in Lufkin, Texas [Member] | Subsequent Event [Member]
Lessee, Finance Lease, Term of Contract (Year)	15 years
Lessee, Finance Lease, Yearly Base Rent	$ 427
Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total	4,500
Finance Lease, Liability, Total	4,500
Leasehold Improvements, Gross	$ 1,041

Note I - Lease Obligations - Co

Note I - Lease Obligations - Components of Lease Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Amortization of right-of-use assets	$ 188	$ 27
Interest on lease liabilities	56	8
Operating lease cost	3,137	3,348
Short-term lease cost	64	40
Variable lease cost	58	37
Total lease cost	3,503	3,460
Less: Sublease income	(212)	(222)
Net lease cost	$ 3,291	$ 3,238

Note I - Lease Obligations - Ot

Note I - Lease Obligations - Other Information Related to Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating cash flows from operating leases	$ 3,141	$ 3,338
Operating cash flows from finance leases	167	18
Financing cash flows from finance leases	56	9
Right-of-use-assets obtained in exchange for lease obligations: Operating leases	2,757	13,875
Right-of-use-assets obtained in exchange for lease obligations: Finance leases	$ 592	$ 553
Weighted average remaining lease term (years): Operating leases (Year)	10 years 255 days	11 years 36 days
Weighted average remaining lease term (years): Finance lease (Year)	4 years	4 years 292 days
Weighted average discount rate: Operating leases	7.40%	7.70%
Weighted average discount rate: Finance leases	6.20%	7.30%

Note I - Lease Obligations - Fu

Note I - Lease Obligations - Future Minimum Rental Commitments Under Noncancellable Leases (Details) $ in Thousands	Jun. 30, 2020USD ($)
2021, Operating Leases	$ 2,724
2021, Finance Leases	284
2022, Operating Leases	2,233
2022, Finance Leases	284
2023, Operating Leases	1,988
2023, Finance Leases	275
2024, Operating Leases	1,793
2024, Finance Leases	234
2025, Operating Leases	1,567
2025, Finance Leases	31
Thereafter, Operating Leases	10,930
Thereafter, Finance Leases
Total future lease payments, Operating Leases	21,235
Total future lease payments, Finance Leases	1,108
Less: Amount representing interest, Operating Leases	(6,773)
Less: Amount representing interest, Finance Leases	(118)
Present value of future payments, Operating Leases	14,462
Finance Lease, Liability, Total	$ 990

Note I - Lease Obligations - _2

Note I - Lease Obligations - Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Operating lease liabilities	$ 13,495	$ 12,646
Property, Plant and Equipment, Net [Member]
Operating lease right-of-use assets	14,448	14,138
Finance lease right-of-use assets	959	545
Accrued Liabilities [Member]
Operating lease liabilities	1,724	1,933
Finance lease liabilities	233	104
Lease Obligation [Member]
Operating lease liabilities	12,738	12,197
Finance lease liabilities	$ 757	$ 449

Note J - Shareholders' Equity_2

Note J - Shareholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	Sep. 25, 2018	Jun. 30, 2020	Jun. 30, 2019
Stock Issued During Period, Shares, New Issues (in shares)	1,533,334
Share Price (in dollars per share)	$ 22.50
Payments of Stock Underwriting Costs	$ 2,070
Payments of Stock Offering Expenses	220
Proceeds from Issuance of Common Stock	$ 32,210		$ 32,210
Common Stock, Shares, Outstanding, Ending Balance (in shares)		13,405,993	13,240,278
Treasury Stock, Shares, Ending Balance (in shares)		1,226,809	1,392,524
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture, Total (in shares)		186,226	157,043
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (in shares)		20,511	3,784
Treasury Stock, Shares, Acquired (in shares)		0	0
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased (in shares)		315,000	315,000
Common Stock, Dividends, Per Share, Cash Paid (in dollars per share)		$ 0	$ 0
Preferred Stock, Shares Authorized (in shares)		200,000	200,000
Preferred Stock, Shares Issued, Total (in shares)		0	0
Preferred Stock, Capital Shares Reserved for Future Issuance (in shares)		150,000

Note J - Shareholders' Equity -

Note J - Shareholders' Equity - Shareholders' Equity Reconciliation (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Translation adjustments	$ 3,454	$ 4,439
Net loss on cash flow hedge derivatives, net of income taxes of $341 and $156, respectively	(1,104)	(509)
Benefit plan adjustments, net of income taxes of $13,316 and $12,707 respectively	(43,576)	(41,901)
Accumulated other comprehensive loss	$ (41,226)	$ (37,971)

Note J - Shareholders' Equity_3

Note J - Shareholders' Equity - Shareholders' Equity Reconciliation (Details) (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Net loss on cash flow hedge derivatives, income taxes	$ 341	$ 156
Tax effect on benefit plan adjustments	$ 13,316	$ 12,707

Note J - Stockholders' Equity -

Note J - Stockholders' Equity - Accumulated Other Comprehensive Income (Loss), Net of Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Balance	$ 182,818	$ 143,616
Release stranded tax effects
Balance	139,958	182,818
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance	4,439	7,085
Other comprehensive loss before reclassifications	(985)	(2,646)
Amounts reclassified from accumulated other comprehensive loss
Net current period other comprehensive loss	(985)	(2,646)
Release stranded tax effects
Balance	3,454	4,439
Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member]
Balance	(41,901)	(30,877)
Other comprehensive loss before reclassifications	(3,792)	(6,068)
Amounts reclassified from accumulated other comprehensive loss	2,117	1,947
Net current period other comprehensive loss	(1,675)	(11,024)
Release stranded tax effects		(6,903)
Balance	(43,576)	(41,901)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Balance	(509)
Other comprehensive loss before reclassifications	(595)	(509)
Amounts reclassified from accumulated other comprehensive loss
Net current period other comprehensive loss	(595)	(509)
Release stranded tax effects
Balance	$ (1,104)	$ (509)

Note J - Shareholders' Equity_4

Note J - Shareholders' Equity - Reconciliation for the Reclassifications Out of Accumulated Other Comprehensive Income (Loss), Net of Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Income tax (benefit) expense	$ (4,169)	$ 3,711
Net (loss) income	(39,571)	10,796
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Actuarial losses	(2,982)	(2,710)
Transition asset and prior service benefit	195	176
Total before tax benefit	(2,787)	(2,534)
Income tax (benefit) expense	670	587
Net (loss) income	$ (2,117)	$ (1,947)

Note K - Business Segments an_3

Note K - Business Segments and Foreign Operations (Details Textual)	12 Months Ended
	Jun. 30, 2020
Number of Reportable Segments	2

Note K - Business Segments an_4

Note K - Business Segments and Foreign Operations - Net Sales by Product Group (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Net Sales	$ 246,838	$ 302,663
Operating Segments [Member]
Net Sales	323,389	386,909
Intersegment Eliminations [Member]
Net Sales	(76,551)	(84,246)
Manufacturing Segment [Member] | Operating Segments [Member]
Net Sales	227,565	280,428
Distribution Segment [Member] | Operating Segments [Member]
Net Sales	95,824	106,481
Industrial [Member]
Net Sales	26,343	34,042
Industrial [Member] | Intersegment Eliminations [Member]
Net Sales	(3,434)	(4,430)
Industrial [Member] | Manufacturing Segment [Member] | Operating Segments [Member]
Net Sales	24,143	30,393
Industrial [Member] | Distribution Segment [Member] | Operating Segments [Member]
Net Sales	5,634	8,079
Land Based Transmissions [Member]
Net Sales	62,697	112,793
Land Based Transmissions [Member] | Intersegment Eliminations [Member]
Net Sales	(26,525)	(28,950)
Land Based Transmissions [Member] | Manufacturing Segment [Member] | Operating Segments [Member]
Net Sales	63,523	111,260
Land Based Transmissions [Member] | Distribution Segment [Member] | Operating Segments [Member]
Net Sales	25,699	30,483
Marine and Propulsion Systems [Member]
Net Sales	152,501	150,237
Marine and Propulsion Systems [Member] | Intersegment Eliminations [Member]
Net Sales	(46,544)	(50,796)
Marine and Propulsion Systems [Member] | Manufacturing Segment [Member] | Operating Segments [Member]
Net Sales	139,833	138,704
Marine and Propulsion Systems [Member] | Distribution Segment [Member] | Operating Segments [Member]
Net Sales	59,212	62,329
Other [Member]
Net Sales	5,297	5,591
Other [Member] | Intersegment Eliminations [Member]
Net Sales	(48)	(70)
Other [Member] | Manufacturing Segment [Member] | Operating Segments [Member]
Net Sales	66	71
Other [Member] | Distribution Segment [Member] | Operating Segments [Member]
Net Sales	$ 5,279	$ 5,590

Note K - Business Segments an_5

Note K - Business Segments and Foreign Operations - Segment Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Net Sales	$ 246,838	$ 302,663
Intra-segment sales	27,119	34,410
Inter-segment sales	49,432	49,836
Interest income	78	43
Interest expense	1,860	1,927
Income taxes	(4,169)	3,711
Depreciation and amortization	11,925	9,335
Net (loss) income attributable to Twin Disc	(39,817)	10,673
Assets	294,127	346,870
Expenditures for segment assets	10,699	11,979
Manufacturing Segment [Member]
Intra-segment sales	14,230	20,384
Inter-segment sales	43,854	46,078
Distribution Segment [Member]
Intra-segment sales	12,889	14,026
Inter-segment sales	5,578	3,758
Operating Segments [Member]
Net Sales	323,389	386,909
Interest income	368	1,180
Interest expense	2,128	3,049
Income taxes	(1,759)	8,292
Depreciation and amortization	11,530	13,295
Net (loss) income attributable to Twin Disc	(31,050)	25,310
Assets	408,535	430,688
Expenditures for segment assets	10,349	11,388
Interest expense		3,049
Operating Segments [Member] | Manufacturing Segment [Member]
Net Sales	227,565	280,428
Interest income	346	1,154
Interest expense	2,128
Income taxes	(2,027)	7,939
Depreciation and amortization	11,151	12,893
Net (loss) income attributable to Twin Disc	(31,603)	25,062
Assets	365,417	384,612
Expenditures for segment assets	9,615	10,725
Interest expense		3,086
Operating Segments [Member] | Distribution Segment [Member]
Net Sales	95,824	106,481
Interest income	22	26
Interest expense
Income taxes	268	353
Depreciation and amortization	379	402
Net (loss) income attributable to Twin Disc	553	248
Assets	43,118	46,076
Expenditures for segment assets	$ 734	663
Interest expense		$ (37)

Note K - Business Segments an_6

Note K - Business Segments and Foreign Operations - Reconciliation of Reportable Segment Net Sales and Net Earnings to Consolidated Totals (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Net Sales	$ 246,838	$ 302,663
Net earnings attributable to Twin Disc	(39,817)	10,673
Operating Segments [Member]
Net Sales	323,389	386,909
Net earnings attributable to Twin Disc	(31,050)	25,310
Intersegment Eliminations [Member]
Net Sales	(76,551)	(84,246)
Corporate, Non-Segment [Member]
Net earnings attributable to Twin Disc	$ (8,767)	$ (14,637)

Note K - Business Segments an_7

Note K - Business Segments and Foreign Operations - Reconciliation of Reportable Segments Other Significant Reconciling Items to Consolidated Totals (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Interest income	$ 78	$ 43
Interest expense	1,860	1,927
Income taxes	(4,169)	3,711
Depreciation and amortization	11,925	9,335
Assets	294,127	346,870
Expenditures for segment assets	10,699	11,979
Depreciation and amortization		13,612
Operating Segments [Member]
Interest income	368	1,180
Interest expense	2,128	3,049
Income taxes	(1,759)	8,292
Depreciation and amortization	11,530	13,295
Assets	408,535	430,688
Expenditures for segment assets	10,349	11,388
Depreciation and amortization		13,295
Segment Reconciling Items [Member]
Interest income	(290)	(1,137)
Interest expense	(268)	(1,122)
Income taxes	(2,410)	(4,581)
Depreciation and amortization	395
Assets	(114,408)	(83,818)
Expenditures for segment assets	$ 350	591
Depreciation and amortization		$ 317

Note K - Business Segments an_8

Note K - Business Segments and Foreign Operations - Geographic Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Net Sales	$ 246,838	$ 302,663
Long-lived assets	76,724	75,016
Reportable Geographical Components [Member] | UNITED STATES
Net Sales	83,771	132,467
Long-lived assets	41,996	41,233
Reportable Geographical Components [Member] | NETHERLANDS
Net Sales	39,501	31,521
Long-lived assets	12,659	13,186
Reportable Geographical Components [Member] | CHINA
Net Sales	26,354	28,772
Reportable Geographical Components [Member] | BELGIUM
Long-lived assets	8,363	8,595
Reportable Geographical Components [Member] | AUSTRIA
Net Sales	12,552	10,464
Reportable Geographical Components [Member] | SWITZERLAND
Long-lived assets	6,804	6,810
Reportable Geographical Components [Member] | AUSTRALIA
Net Sales	12,438	12,463
Reportable Geographical Components [Member] | ITALY
Net Sales	11,802	12,755
Long-lived assets	1,697	1,894
Reportable Geographical Components [Member] | Other Countries [Member]
Net Sales	54,756	63,346
Long-lived assets	5,205	3,298
Reportable Geographical Components [Member] | CANADA
Net Sales	$ 5,664	$ 10,875

Note L - Stock-based Compensa_3

Note L - Stock-based Compensation (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (in shares)	20,511	3,784
Performance Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)	184,766	67,007
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	131,688	50,004
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	3 years	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance (in shares)	167,848	96,124
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (in shares)	13,844	0
Allocated Share-based Compensation Expense (Reversal)	$ (368)	$ 1,196
Share-based Payment Arrangement, Expense, Tax Benefit	$ (87)	278
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Ending Balance (in dollars per share)	$ 14.78
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total	$ 2,480
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	$ 167	$ 1,228
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	180,379	43,305
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance (in shares)	231,379	172,637
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (in shares)	20,511	3,784
Share-based Payment Arrangement, Expense, Tax Benefit	$ 283	$ 255
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total	1,307
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	1,241	2,391
Share-based Payment Arrangement, Expense	$ 1,200	$ 1,096
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	3 years
Restricted Stock [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	1 year
Restricted Stock [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	3 years
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		37,950
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance (in shares)	37,950	37,950
Share-based Payment Arrangement, Expense, Tax Benefit	$ 77	$ 69
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Ending Balance (in dollars per share)	$ 25.77
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total	$ 353
Share-based Payment Arrangement, Expense	$ 326	$ 299
The 2018 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)	850,000
Stock Incentive Plan for Non-employee Directors 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)	250,000
Long-term Incentive Compensation Plan 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)	650,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	2 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)	10 years
Long-term Incentive Compensation Plan 2010 [Member] | Incentive Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)	5 years
Percentage of Combined Voting Power of Stock Owned by Optionee	10.00%
Percentage of Grant Date Fair Market Value Specified as Price of Incentive Stock Options Based on Condition, Minimum	110.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)	0	0

Note L - Stock-based Compensa_4

Note L - Stock-based Compensation - Shares Available for Future Options (Details) - Stock Options [Member] - shares	Jun. 30, 2020	Jun. 30, 2019
The 2018 Long-Term Incentive Plan [Member]
Shares Available for Grant (in shares)	492,591	742,325
Stock Incentive Plan for Non-employee Directors 2010 [Member]
Shares Available for Grant (in shares)	12,865	61,354

Note M - Engineering and Deve_2

Note M - Engineering and Development Costs (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Research and Development Expense, Total	$ 1,820	$ 2,385
Engineering and Development Costs	$ 10,998	$ 12,594

Note N - Pension and Other Po_3

Note N - Pension and Other Postretirement Benefit Plans (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Defined Benefit Plan, Cost of Premium for Health Coverage Plan, Percentage	100.00%
Defined Benefit Plan, Accumulated Benefit Obligation	$ 105,520	$ 107,322
Defined Benefit Plan, Weighted Average Healthcare Cost, Trend Rate	6.25%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate	5.00%
Defined Benefit Plan, Percentage of Increase in Assumed HealthCare Cost Trend Rate	1.00%
Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation	$ 84
Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components	$ 3
Defined Benefit Plan, Percentage of Decrease in Assumed Healthcare Cost Trend Rate	1.00%
Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation	$ 71
Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components	$ 3
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	100.00%	100.00%
Defined Benefit Plan, Expected Long-term Return on Plan Assets	5.89%
Defined Contribution Plan, Cost	$ 1,949	$ 2,276
Pension Plan [Member]
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year	$ 2,346
UNITED STATES
Defined Benefit Plan, Expected Long-term Return on Plan Assets	6.10%
Common Stock Held by U.S Pension Plans [Member]
Defined Benefit Plan, Plan Assets, Employer, Related Party, Number of Shares (in shares)	98,211	98,211
Defined Benefit Plan, Plan Assets, Employer, Related Party, Amount	$ 544	$ 1,483
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	0.70%	1.70%

Note N - Pension and Other Po_4

Note N - Pension and Other Postretirement Benefit Plans - Net Funded Status of Pension and Postretirement Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Net amount recognized	$ 43,576	$ 41,901
Pension Plan [Member]
Benefit obligation, beginning of year	107,322	105,012
Service cost	653	795
Interest cost	3,305	4,020
Actuarial loss	3,161	6,718
Contributions by plan participants	93	103
Benefits paid	(9,014)	(9,326)
Benefit obligation, end of year	105,520	107,322
Fair value of assets, Balance	87,291	90,258
Actual return on plan assets	3,541	4,125
Employer contribution	1,373	2,131
Contributions by plan participants	93	103
Benefits paid	(9,014)	(9,326)
Fair value of assets, Balance	83,284	87,291
Funded status	(22,236)	(20,031)
Other assets - noncurrent		3
Accrued liabilities - current	(276)	(645)
Accrued retirement benefits - noncurrent	(21,960)	(19,389)
Net amount recognized	(22,236)	(20,031)
Net transition obligation	158	178
Prior service cost	104	144
Actuarial net loss	43,548	42,185
Net amount recognized	43,810	42,507
Other Postretirement Benefits Plan [Member]
Benefit obligation, beginning of year	7,451	8,077
Service cost	17	19
Interest cost	219	305
Actuarial loss	211	18
Contributions by plan participants	352	389
Benefits paid	(1,191)	(1,357)
Benefit obligation, end of year	7,059	7,451
Fair value of assets, Balance
Actual return on plan assets
Employer contribution	839	968
Contributions by plan participants	352	389
Benefits paid	(1,191)	(1,357)
Fair value of assets, Balance
Funded status	(7,059)	(7,451)
Other assets - noncurrent
Accrued liabilities - current	(1,081)	(962)
Accrued retirement benefits - noncurrent	(5,978)	(6,489)
Net amount recognized	(7,059)	(7,451)
Net transition obligation
Prior service cost	(697)	(908)
Actuarial net loss	463	302
Net amount recognized	$ (234)	$ (606)

Note N - Pension and Other Po_5

Note N - Pension and Other Postretirement Benefit Plans - Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized Over Next Fiscal Year (Details) $ in Thousands	Jun. 30, 2020USD ($)
Pension Plan [Member]
Net transition obligation	$ 35
Prior service cost	45
Actuarial net loss	3,246
Net amount to be recognized	3,326
Other Postretirement Benefits Plan [Member]
Net transition obligation
Prior service cost	(275)
Actuarial net loss
Net amount to be recognized	$ (275)

Note N - Pension and Other Po_6

Note N - Pension and Other Postretirement Benefit Plans - Information for Pension Plans with an Accumulated Benefit Obligation in Excess of Plan Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Projected and accumulated benefit obligation	$ 105,520	$ 102,879
Fair value of plan assets	$ 83,284	$ 82,845

Note N - Pension and Other Po_7

Note N - Pension and Other Postretirement Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Pension Plan [Member]
Service cost	$ 648	$ 792
Interest cost	3,304	4,019
Expected return on plan assets	(4,894)	(5,238)
Amortization of transition obligation	35	34
Amortization of prior service cost	45	64
Amortization of actuarial net loss	2,982	2,710
Net periodic benefit cost	2,120	2,381
Other Postretirement Benefits Plan [Member]
Service cost	17	18
Interest cost	219	304
Amortization of prior service cost	(274)	(274)
Net periodic benefit cost	$ (38)	$ 48

Note N - Pension and Other Po_8

Note N - Pension and Other Postretirement Benefit Plans - Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Pension Plan [Member]
Net loss	$ 4,770	$ 8,098
Amortization of transition asset	(35)	(34)
Amortization of prior service (cost) benefit	(45)	(64)
Amortization of net (loss) gain	(2,978)	(2,711)
Total recognized in other comprehensive income	1,712	5,078
Net periodic benefit cost	2,120	2,381
Total recognized in net periodic benefit cost and other comprehensive income	3,832	7,459
Prior service cost		(211)
Other Postretirement Benefits Plan [Member]
Net loss	211	18
Amortization of transition asset
Amortization of prior service (cost) benefit	275	275
Amortization of net (loss) gain
Total recognized in other comprehensive income	486	293
Net periodic benefit cost	(38)	48
Total recognized in net periodic benefit cost and other comprehensive income	$ 448	341
Prior service cost

Note N - Pension and Other Po_9

Note N - Pension and Other Postretirement Benefit Plans - Schedule of Assumptions (Details)	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Pension Plan [Member]
Discount rate	2.49%	3.22%
Expected return on plan assets	5.89%	6.04%
Discount rate	3.22%	4.01%
Expected return on plan assets	6.04%	6.74%
Other Postretirement Benefits Plan [Member]
Discount rate	2.37%	3.15%
Expected return on plan assets
Discount rate	3.15%	4.09%
Expected return on plan assets

Note N - Pension and Other P_10

Note N - Pension and Other Postretirement Benefit Plans - Pension Plan Weighted-Average Asset Allocations (Details)	Jun. 30, 2020	Jun. 30, 2019
Target Allocation	100.00%
Actual Allocation	100.00%	100.00%
Equity Securities [Member]
Target Allocation	51.00%
Actual Allocation	47.00%	49.00%
Debt Securities [Member]
Target Allocation	40.00%
Actual Allocation	44.00%	42.00%
Real Estate [Member]
Target Allocation	9.00%
Actual Allocation	9.00%	9.00%

Note N - Pension and Other P_11

Note N - Pension and Other Postretirement Benefit Plans - Plan Assets Using Fair Value Hierarchy (Details) - USD ($) $ in Thousands		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Fair Value, Inputs, Level 3 [Member]
Plan Assets		$ 6,095	$ 6,171	$ 6,113
Pension Plan [Member]
Plan Assets		83,284	87,291	$ 90,258
Pension Plan [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Plan Assets		30,026	33,301
Pension Plan [Member] | Fair Value, Inputs, Level 1 [Member]
Plan Assets		23,931	27,130
Pension Plan [Member] | Fair Value, Inputs, Level 2 [Member]
Plan Assets
Pension Plan [Member] | Fair Value, Inputs, Level 3 [Member]
Plan Assets		6,095	6,171
Pension Plan [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Plan Assets	[1]	53,258	53,990
Cash and Cash Equivalents [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Plan Assets		920	971
Cash and Cash Equivalents [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 1 [Member]
Plan Assets		920	971
Cash and Cash Equivalents [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 2 [Member]
Plan Assets
Cash and Cash Equivalents [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 3 [Member]
Plan Assets
Investments Measured at Net Asset Value, Fixed Income Funds [Member] | Pension Plan [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Plan Assets		33,032	33,568
Company Common Stock [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Plan Assets	[2]	544	1,483
Company Common Stock [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 1 [Member]
Plan Assets	[2]	544	1,483
Company Common Stock [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 2 [Member]
Plan Assets	[2]
Company Common Stock [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 3 [Member]
Plan Assets	[2]
Investments Measured at Net Asset Value, Equity Securities [Member] | Pension Plan [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Plan Assets		2,840	3,168
Common Stock [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Plan Assets	[2]	14,551	16,713
Common Stock [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 1 [Member]
Plan Assets	[2]	14,551	16,713
Common Stock [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 2 [Member]
Plan Assets	[2]
Common Stock [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 3 [Member]
Plan Assets	[2]
Investments Measured at Net Asset Value, Real Estate [Member] | Pension Plan [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Plan Assets		7,186	7,069
Mutual Fund [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Plan Assets	[3]	7,916	7,963
Mutual Fund [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 1 [Member]
Plan Assets	[3]	7,916	7,963
Mutual Fund [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 2 [Member]
Plan Assets	[3]
Mutual Fund [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 3 [Member]
Plan Assets	[3]
Investments Measured at Net Asset Value, Hedge Funds [Member] | Pension Plan [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Plan Assets		10,200	10,185
Annuity Contracts [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Plan Assets	[4]	6,095	6,171
Annuity Contracts [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 1 [Member]
Plan Assets	[4]
Annuity Contracts [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 2 [Member]
Plan Assets	[4]
Annuity Contracts [Member] | Pension Plan [Member] | Fair Value, Inputs, Level 3 [Member]
Plan Assets	[4]	$ 6,095	$ 6,171
[1]	In accordance with ASC 820-10, certain investments that were measured at net asset value per share (or its equivalent) have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the fair value of plan assets at the end of the year.
[2]	Common stock is valued at the closing price reported on the active market on which the individual securities are traded. These securities include U.S. equity securities invested in companies that are traded on exchanges inside the U.S. and international equity securities invested in companies that are traded on exchanges outside the U.S.
[3]	Mutual funds are valued at the daily closing price as reported by the fund. Mutual funds held by the Company's funded benefit plans are open-end mutual funds that are registered with the Securities Exchange Commission. These funds are required to publish their daily net asset value ("NAV") and to transact at that price. The mutual funds held by the Company's funded benefit plans are deemed to be actively traded.
[4]	Annuity contracts represent contractual agreements in which payments are made to an insurance company, which agrees to pay out an income or lump sum amount at a later date. Annuity contracts are valued at the net present value of future cash flows.

Note N - Pension and Other P_12

Note N - Pension and Other Postretirement Benefit Plans - Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets (Details) - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Fair value of assets, Balance	$ 6,171	$ 6,113
Relating to assets still held at reporting date	75	216
Purchases, sales and settlements, net	(151)	(158)
Fair value of assets, Balance	$ 6,095	$ 6,171

Note N - Pension and Other P_13

Note N - Pension and Other Postretirement Benefit Plans - Defined Benefit Plan Estimated Future Benefit Payments (Details) $ in Thousands	Jun. 30, 2020USD ($)
2025 - Pension Benefits	$ 7,197
2025 - Other Postretirement Benefits, Gross Benefits	608
Pension Plan [Member]
2021 - Pension Benefits	8,944
2022 - Pension Benefits	8,230
2023 - Pension Benefits	7,936
2024 - Pension Benefits	7,547
Years 2026 - 2030 - Pension Benefits	32,605
Other Postretirement Benefits Plan [Member]
2021 - Other Postretirement Benefits, Gross Benefits	1,094
2022 - Other Postretirement Benefits, Gross Benefits	843
2023 - Other Postretirement Benefits, Gross Benefits	769
2024 - Other Postretirement Benefits, Gross Benefits	693
Years 2026 - 2030 - Other Postretirement Benefits, Gross Benefits	$ 2,273

Note O - Income Taxes (Details

Note O - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Undistributed Earnings of Foreign Subsidiaries	$ 1,729	$ 6,208
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	918	938
Unrecognized Tax Benefits, Income Tax Penalties Accrued	185	$ 148
Domestic Tax Authority [Member]
Operating Loss Carryforwards, Subject to Expiration	7,655
Operating Loss Carryforwards, Not Subject to Expiration	7,655
Tax Credit Carryforward, Amount	$ 9,410
Open Tax Year	2017 2018 2019 2020
State and Local Jurisdiction [Member]
Operating Loss Carryforwards, Subject to Expiration	$ 23,132
Tax Credit Carryforward, Amount	$ 975
State and Local Jurisdiction [Member] | Wisconsin Department of Revenue [Member]
Open Tax Year	2010 2011 2012 2013
Foreign Tax Authority [Member]
Open Tax Year	2016 2017 2018 2019 2020

Note O - Income Taxes - Domesti

Note O - Income Taxes - Domestic and Foreign Earnings Before Income Taxes and Minority Interest (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
United States	$ (29,332)	$ 7,059
Foreign	(14,408)	7,448
(Loss) earnings before income taxes and noncontrolling interest	$ (43,740)	$ 14,507

Note O - Income Taxes - Provisi

Note O - Income Taxes - Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Currently payable:
Federal	$ (149)	$ 248
State	30	261
Foreign	4,022	(3,644)
Current	3,903	(3,135)
Deferred:
Federal	(5,673)	920
State	(860)	(7)
Foreign	(1,539)	5,933
Deferred	(8,072)	6,846
Income tax (benefit) expense	$ (4,169)	$ 3,711

Note O - Income Taxes - Compone

Note O - Income Taxes - Components of Net Deferred Tax Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Retirement plans and employee benefits	$ 7,934	$ 7,732
Foreign tax credit carryforwards	7,429	6,296
Federal tax credits	1,585	1,057
State net operating loss and other state credit carryforwards	1,696	1,269
Federal net operating loss	1,607
Inventory	205	757
Reserves	1,056	765
Foreign NOL carryforwards	555	775
Accruals	823	339
Right of use assets - operating leases	3,920	3,691
Disallowed interest	418
Disallowed PPP expenses	1,320
Other assets	832	656
Gross deferred tax assets	29,380	23,337
Property, plant and equipment	3,231	3,432
Intangibles	3,306	5,345
Long term operating lease obligations	3,855	3,617
Other liabilities	44	194
Gross deferred tax liabilities	10,436	12,588
Valuation allowance
Total net deferred tax assets	$ 18,944	$ 10,749

Note O - Income Taxes - Reconci

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

Note O - Income Taxes - Recon_2

Note O - Income Taxes - Reconciliation of U.S. Federal Income Taxes to Actual Income Taxes (Details) (Parentheticals)	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Federal Income Tax	21.00%	21.00%

Note O - Income Taxes - Recon_3

Note O - Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Unrecognized tax benefits, beginning of year	$ 938	$ 816
Additions based on tax positions related to the prior year	17	31
Additions based on tax positions related to the current year	87	91
Reductions based on tax positions related to the prior year	(19)
Subtractions due to statutes closing	(105)
Unrecognized tax benefits, end of year	$ 918	$ 938

Note Q - Restructuring of Ope_3

Note Q - Restructuring of Operations and Other Operating Income (Details Textual) $ in Thousands	May 13, 2019USD ($)shares	Mar. 04, 2019USD ($)	Dec. 27, 2019USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2020USD ($)	Mar. 04, 2020USD ($)	Jul. 02, 2018USD ($)
Restructuring Charges, Total				$ 5,138	$ 1,179	$ 12,405
Restructuring and Related Cost, Number of Positions Eliminated						207
Payments for Restructuring				5,054	1,269
Veth Propulsion [Member]
Business Combination, Contingent Consideration, Liability, Total								$ 2,921
Stock Issued During Period, Shares, Acquisitions (in shares) | shares	139,347
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	$ 1,991
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	$ 809
Buyer of Mill Log [Member]
Financing Receivable, before Allowance for Credit Loss, Total							$ 2,500
Proceeds from Collection of Notes Receivable				500
Buyer of Mill Log [Member] | Other Current Assets [Member]
Financing Receivable, after Allowance for Credit Loss, Total				1,200		$ 1,200
Buyer of Mill Log [Member] | Other Assets [Member]
Financing Receivable, after Allowance for Credit Loss, Total				800		$ 800
Mill Log Business [Member] | Discontinued Operations, Disposed of by Sale [Member]
Disposal Group, Including Discontinued Operation, Operating Income (Loss)					(1,374)
Disposal Group, Including Discontinued Operation, Inventory		$ 6,298
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Current		592
Disposal Group, Including Discontinued Operation, Consideration		7,658
Proceeds from Sales of Business, Affiliate and Productive Assets		$ 5,158
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax, Total					768
Employee Severance [Member]
Restructuring Charges, Total				1,953	$ 1,179
Contract Termination [Member] | Manufacturing Segment [Member]
Restructuring Charges, Total				$ 3,185
Restructuring Reserve, Settled without Cash			$ 2,185
Payments for Restructuring			$ 1,000

Note Q - Restructuring of Ope_4

Note Q - Restructuring of Operations and Other Operating Income- Roll-forward of Restructuring Activity (Details) - USD ($) $ in Thousands	12 Months Ended		61 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020
Accrued restructuring liability		$ 90
Additions	5,138	1,179	$ 12,405
Payments and adjustments	(5,054)	(1,269)
Accrued restructuring liability	$ 84		$ 84

Note R - Earnings Per Share (De

Note R - Earnings Per Share (Details Textual) - shares	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Performance Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	167,848	80,164
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	231,379	172,637
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	37,950	13,123
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)		3,483

Note R - Earnings Per Share - C

Note R - Earnings Per Share - Components of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Basic:
Net (loss) income	$ (39,571)	$ 10,796
Less: Net earnings attributable to noncontrolling interest	(246)	(123)
Less: Undistributed earnings attributable to unvested shares		(148)
Net (loss) income available to Twin Disc shareholders	$ (39,817)	$ 10,525
Weighted average shares outstanding - basic (in shares)	13,153	12,571
Basic (Loss) Income Per Share:
Net (loss) income per share - basic (in dollars per share)	$ (3.03)	$ 0.84
Diluted:
Net (loss) income	$ (39,571)	$ 10,796
Less: Net earnings attributable to noncontrolling interest	(246)	(123)
Less: Undistributed earnings attributable to unvested shares		(148)
Net (loss) income available to Twin Disc shareholders	$ (39,817)	$ 10,525
Weighted average shares outstanding - basic (in shares)	13,153	12,571
Effect of dilutive stock awards (in shares)		111
Weighted average shares outstanding - diluted (in shares)	13,153	12,682
Diluted (Loss) Income Per Share:
Net (loss) income per share - diluted (in dollars per share)	$ (3.03)	$ 0.83

Note S - Derivative Financial_3

Note S - Derivative Financial Instruments (Details Textual) $ in Thousands	12 Months Ended
	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance	$ 139,958	$ 182,818	$ 143,616
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	$ (392)
Foreign Exchange Forward [Member]
Derivative, Number of Instruments Held, Total	1	0
Derivative, Notional Amount	$ 1,247
Derivative, Average Remaining Maturity (Day)	7 days
Derivative, Loss on Derivative	$ 9
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance	$ (1,104)	$ (509)

Note S - Derivative Financial_4

Note S - Derivative Financial Instruments - Fair Value of Derivative Instruments (Details) - Interest Rate Swap [Member] - Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Accrued Liabilities [Member]
Derivative Liabilities, Current	$ 392	$ 122
Other Noncurrent Liabilities [Member]
Derivative Liabilities, Noncurrent	$ 1,052	$ 544

Note S - Derivative Financial_5

Note S - Derivative Financial Instruments - Impact of the Company's Derivative Instruments on the Consolidated Statement of Operations and Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Unrealized loss on cash flow hedge, net of income taxes of $185 and $156	$ (595)	$ (509)
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Unrealized loss on cash flow hedge, net of income taxes of $185 and $156	(595)	(509)
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Interest Expense [Member]
Derivative liabilities, designated	171	1
Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Other Nonoperating Income (Expense) [Member]
Derivative liabilities, designated	$ (9)	$ 4

Schedule II - Valuation and Q_3

Schedule II - Valuation and Qualifying Accounts - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2020	Jun. 30, 2019
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
Balance at Beginning of Period		$ 1,582	$ 1,478
Charged to Costs and Expenses		399	236
Deductions	[1]	241	132
Balance at End of Period		1,740	1,582
SEC Schedule, 12-09, Reserve, Inventory [Member]
Balance at Beginning of Period		10,463	8,427
Charged to Costs and Expenses		1,532	1,934
Deductions	[1]	2,132
Reserve for inventory obsolescence	[1]		(102)
Balance at End of Period		$ 9,863	$ 10,463
[1]	Activity primarily represents amounts written-off during the year, along with other adjustments (primarily foreign currency translation adjustments).