Condensed Consolidated Statements of Earnings (Unaudited) - USD ($)	3 Months Ended
	Sep. 27, 2020	Sep. 29, 2019
Operating Revenues:
Operating revenue	$ 1,636,002	$ 5,124,611
Operating Expenses:
Employee compensation and benefits	1,319,472	2,735,214
Depreciation and amortization	247,808	235,178
General and administrative	157,500	268,099
Total Operating Expenses	2,815,733	5,284,696
Operating Income	(1,179,731)	(160,085)
Interest, dividend and other income	89,516	106,457
Change in value of investments	126,226	429,053
PPP Loan interest expense	4,690
(Loss) earnings before provision for income tax	(968,679)	375,425
Provision (benefit) for income tax	(230,956)	90,100
Net (Loss) earnings	$ (737,723)	$ 285,325
Net (Loss) earnings per share-basic & diluted (in dollars per share)	$ (0.14)	$ 0.06
Weighted average shares outstanding (in shares)	5,160,971	5,160,971
Dividends paid	$ 0	$ 903,170
Common Class A [Member]
Operating Expenses:
Per share, dividends paid (in dollars per share)	$ 0	$ 0.175
Common Class B [Member]
Operating Expenses:
Per share, dividends paid (in dollars per share)	$ 0	$ 0.175
Bowling and Other [Member]
Operating Revenues:
Operating revenue	$ 1,166,872	$ 3,609,673
Operating Expenses:
Cost of goods and services sold	943,680	1,602,173
Food, Beverage, and Merchandise [Member]
Operating Revenues:
Operating revenue	469,130	1,514,938
Operating Expenses:
Cost of goods and services sold	$ 147,273	$ 444,032