Note 2 - Investments - Summary of Investments (Details) - USD ($)	Sep. 30, 2018	Jul. 01, 2018
Short-term Investments [Member]
Fair Value	$ 233,907	$ 333,029
Cost Basis	233,907	333,029
Equity Securities [Member]
Fair Value	5,071,199	4,816,804
Cost Basis	1,279,914	1,279,914
Unrealized Gain	3,791,285	3,536,890
Mutual Fund [Member]
Fair Value	1,822,245	1,824,846
Cost Basis	1,877,811	1,864,296
Unrealized Loss	$ (55,566)	$ (39,450)

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

No definition available.

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- Definition

Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563

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- Definition

Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

No definition available.

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- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

No definition available.

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