Note 3 - Investments (Details Textual) - USD ($)	12 Months Ended
Jun. 28, 2015	Jun. 29, 2014
Windstream [Member]
Stock Issued During Period, Shares, Reverse Stock Splits	6
Verizon [Member] \| Vodafone [Member]
Stock Dividends Shares Received		3,120
Verizon [Member]
Shares Purchased		5,000
LSI [Member] \| Anago [Member]
Gain (Loss) on Sale of Investments		$ 281
Minimum [Member]
Short-term Investments Maturities Term	90 days
Maximum [Member]
Short-term Investments Maturities Term	1 year
Short-term Investments [Member]
Short-term Investments	$ 133,729	1,453,326
US Government Corporations and Agencies Securities [Member]
Available-for-sale Securities, Gross Unrealized Gain (Loss)	58,014	100,125
US Government Securities, at Carrying Value	3,676,005	3,605,513
Equity Securities [Member]
Unrealized Loss on Securities	5,516	1,171
Short-term Investments	133,729	1,453,326
Available-for-sale Securities, Gross Unrealized Gain (Loss)	$ (225,710)	$ 12,244

Represents the number of shares purchased during the period.

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- Definition

Represents short-term investments maturity term.

+ References

No definition available.

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- Definition

Number of shares of common and preferred stock received as dividends during the period. Excludes stock splits.

+ References

No definition available.

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- Definition

Amount of unrealized gain (loss) on investments in debt and equity securities classified as available-for-sale securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563

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- Definition

The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

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- Definition

Investments which are intended to be sold in the short term (usually less than one year or the normal operating cycle, whichever is longer) including trading securities, available-for-sale securities, held-to-maturity securities, and other short-term investments not otherwise listed in the existing taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.2)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Subparagraph g

-Article 7

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- Definition

Reduction in the number of shares during the period as a result of a reverse stock split.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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- Definition

Debt (bills, notes or bonds) that are issued by the government of the United States which are short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

-URI http://asc.fasb.org/extlink&oid=6507016

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- Definition

The increase (decrease), resulting in a loss, in the difference between the fair value and the carrying value, or in the comparative fair values, of securities held at each balance sheet date, that was included in earnings for the period.

+ References

No definition available.

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