Note 2 - Investments - Fair Value Hierarchy (Details) - USD ($)	Oct. 02, 2016	Jul. 03, 2016
Certificates of Deposit [Member] | Fair Value, Inputs, Level 1 [Member]
Quoted Price for Identical Assets
Certificates of Deposit [Member] | Fair Value, Inputs, Level 2 [Member]
Quoted Price for Identical Assets	485,452	484,558
Certificates of Deposit [Member] | Fair Value, Inputs, Level 3 [Member]
Quoted Price for Identical Assets
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Quoted Price for Identical Assets	5,703,049	6,001,841
Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Quoted Price for Identical Assets
Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Quoted Price for Identical Assets
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Quoted Price for Identical Assets	2,837,679
Mutual Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Quoted Price for Identical Assets
Mutual Fund [Member] | Fair Value, Inputs, Level 1 [Member]
Quoted Price for Identical Assets		2,822,615
Mutual Fund [Member] | Fair Value, Inputs, Level 2 [Member]
Quoted Price for Identical Assets
Mutual Fund [Member] | Fair Value, Inputs, Level 3 [Member]
Quoted Price for Identical Assets
Fair Value, Inputs, Level 1 [Member]
Quoted Price for Identical Assets	8,540,728	8,824,456
Fair Value, Inputs, Level 2 [Member]
Quoted Price for Identical Assets	485,452	484,558
Fair Value, Inputs, Level 3 [Member]
Quoted Price for Identical Assets
Quoted Price for Identical Assets	$ 8,540,728	$ 8,824,456