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Note 6 - Investment Securities - Available for Sale (Tables)

6 Months Ended

Jun. 30, 2016

Available-for-sale Securities [Table Text Block]

	June 30, 2016				December 31, 2015
	Cost		Fair Value		Cost		Fair Value
Short-term investments
Certificate of deposit	$	2,160,000	$	2,160,000	$	4,800,000	$	4,798,810
Corporate debt securities		–		–		6,003,748		6,001,080
Total	$	2,160,000	$	2,160,000	$	10,803,748	$	10,799,890

	June 30, 2016				December 31, 2015
	Cost		Fair Value		Cost		Fair Value

Short-term investment maturities
Within 3 months	$	–	$	–	$	10,803,748	$	10,799,890
Between 3-12 months		2,160,000	$	2,160,000		–		–
Total	$	2,160,000	$	2,160,000	$	10,803,748	$	10,799,890

Investment Income [Table Text Block]

	Three Months Ended June 30,
Description of Securities	2016		2015

Interest and dividends accrued and paid	$	4,358	$	38,772
Accretion of investment premium		–		(21,568	)
Realized (losses) gains		–		(339	)
Investment income, net	$	4,358	$	16,865

	Six Months Ended June 30,
Description of Securities	2016			2015

Interest and dividends accrued and paid	$	23,345		$	131,974
Accretion of investment premium		(5,788	)		(98,519	)
Realized (losses) gains		(3,858	)		(210	)
Investment income, net	$	13,699		$	33,245

Schedule of Unrealized Loss on Investments [Table Text Block]

	June 30, 2016				December 31, 2015
Description of Securities	Fair Value		Unrealized Holding Gains (Losses)		Fair Value		Unrealized Holding Gains (Losses)

Available for Sale (all unrealized holding gains and losses are less than 12 months at date of measurement)
Short-term investments with unrealized gains	$	2,160,000	$	–	$	240,024	$	24
Short-term investments with unrealized losses		–		–		10,559,866		(3,882	)
Total	$	2,160,000	$	–	$	10,799,890	$	(3,858	)

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

Accumulated Other Comprehensive Loss
Balance at January 1, 2016	$	(3,858	)

Realized loss reclassified from other accumulated comprehensive loss		3,858
Other comprehensive gain, net		3,858

Balance at June 30, 2016	$	–

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

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