Note 4 - Investments

9 Months Ended

Sep. 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 September 30, 2015 and December 31, 2014 are as follows:

	September 30, 2015
	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
Corporate debt securities	$	3,008,761	$	-	$	(1,391	)	$	3,007,370
Bank certificates of deposit		19,000,000		-		-			19,000,000
	$	22,008,761	$	-	$	(1,391	)	$	22,007,370

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