Note 4 - Investments

6 Months Ended

Jun. 30, 2015

Notes to Financial Statements

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

4. Investments

All of the Company’s investments are classified as available-for-sale and are carried at fair value with unrealized gains and losses recorded as a component of accumulated other comprehensive income, net of related income taxes. The Company’s investments at June 30, 2015 and December 31, 2014 are as follows:

	June 30, 2015
	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
Corporate debt securities	$	3,018,070	$	-	$	(4,920	)	$	3,013,150
Bank certificates of deposit		15,500,000		-		-			15,500,000
	$	18,518,070	$	-	$	(4,920	)	$	18,513,150

	December 31, 2014
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value
Bank certificates of deposit	$	6,750,000	$	-	$	-	$	6,750,000