Note 6 - Investment Securities Gross Unrealized Losses and Fair Value by Investment Category (Details) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Corporate Debt Securities [Member]
Available for Sale (all unrealized holding gains and losses are less than 12 months at date of measurement)
Short-term investments with unrealized gains, fair value		$ 240,024
Short-term investments with unrealized gains		24
Short-term investments with unrealized losses, fair value		10,559,866
Short-term investments with unrealized losses		(3,882)
Short-term Investments		10,799,890
Total		$ (3,858)

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Amount of accumulated unrealized gains on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for less than twelve months.

+ References

No definition available.

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Available for sale securities with continuous gain position less than 12 months fair value.

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- Definition

Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale in a continuous loss position.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
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Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for less than twelve months.

+ References

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This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months.

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Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

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