Note 5 - Investment Securities - Available For Sale (Tables)

6 Months Ended

Jun. 30, 2013

Investments, Debt and Equity Securities [Abstract]

Available-for-sale Securities [Table Text Block]

	June 30, 2013				December 31, 2012
	Cost		Fair Value		Cost		Fair Value
Corporate bond maturities
Within 3 months	$	15,106,659	$	15,041,480	$	3,053,740	$	3,002,350
Between 3-12 months		27,813,952		27,665,289		5,110,487		5,035,270
Total	$	42,920,611	$	42,706,769	$	8,164,227	$	8,037,620

Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block]

	June 30, 2013					December 31, 2012
Description of Securities	Fair Value		Gross Unrealized Holding Losses			Fair Value		Gross Unrealized Holding Gains
Available for Sale
Bonds – corporate issuances (all unrealized holding losses are less than 12 months at date of measurement)	$	42,706,769	$	(213,841	)	$	8,037,620	$	(126,607	)

Investment Income [Table Text Block]

	Three Months Ended June 30,						Six Months Ended June 30,
Description of Securities	2013			2012			2013			2012
Interest and dividend income	$	204,075		$	130,692		$	274,378		$	264,585
Realized losses		(136,943	)		(68,616	)		(190,683	)		(197,176	)
	$	67,132		$	62,076		$	83,695		$	67,409