Note 11. Stock Compensation Plans - Textuals (Details) - $ / shares		3 Months Ended
		Sep. 30, 2020	Oct. 20, 2016	Oct. 03, 2014
Stock Option and Incentive Plan 2014
Share-based Compensation Arrangement by Share-based Payment Award
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized				4,500,000
Non-Employee Directors Stock Compensation Deferral Plan
Share-based Compensation Arrangement by Share-based Payment Award
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized			1,000,000.0
Performance Shares | Stock Option and Incentive Plan 2014
Share-based Compensation Arrangement by Share-based Payment Award
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	[1]	250,837
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	[1],[2]	$ 13.67
Deferred Share Units Director Compensation | Non-Employee Directors Stock Compensation Deferral Plan
Share-based Compensation Arrangement by Share-based Payment Award
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		0

[1] Long-term performance shares were awarded to officers and other key employees. Payouts will be based upon the attainment of the applicable bonus percentage calculated under the Company’s profit-sharing incentive bonus plan as applied to a potential share award made and approved by the Compensation and Governance Committee of the Board. Under these awards granted, a number of shares will be issued to each participant based upon a combination of the bonus attainment percentage component above, adjusted to a three-year average bonus percentage, and a growth attainment component, which is the Company’s growth in sales revenue based on comparison of its three-year compounded annual growth rate (“CAGR”) with the Electronics Manufacturing Services Industry’s three-year CAGR. The long-term performance shares awarded are based on three successive annual performance measurement periods, with each annual tranche having a grant date when economic profit tiers are established and approved by the Compensation and Governance Committee of the Board near the beginning of the applicable fiscal year and a vesting date shortly after the end of each annual period. The number of shares issued will be less than the maximum shares issuable if one or both of the above-mentioned incentive metric maximum thresholds are not obtained.

[2] The grant date fair value is based on the stock price at the date of the award and for long-term performance shares is applicable to the first tranche only.