Amount of the cumulative effect on retained earnings net of related income tax effect.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($)		3 Months Ended
	Jul. 01, 2018	Mar. 31, 2020	Dec. 31, 2019	Jul. 01, 2019
Operating Lease, Right-of-Use Asset			$ 9,504,000
Operating Lease, Liability, Total			$ 10,247,000
Graphics Manufacturing Facility in North Canton, Ohio [Member] \| Forecast [Member]
Proceeds from Divestiture of Businesses		$ 8,000,000
Accounting Standards Update 2014-09 [Member]
Cumulative Effect on Retained Earnings, Net of Tax, Total	$ 591,000
Accounting Standards Update 2016-02 [Member]
Operating Lease, Right-of-Use Asset				$ 10,400,000
Operating Lease, Liability, Total				$ 10,800,000