Note 3 -Short Term Investments Available For Sale (Tables)

12 Months Ended

Dec. 31, 2013

Investments, Debt and Equity Securities [Abstract]

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

	December 31,
Short-term investments available for sale, at fair value	2013		2012
Bonds – corporate issuances	$	37,156,381	$	8,037,620

Available-for-sale Securities [Table Text Block]

	December 31, 2013				December 31, 2012
	Cost		Fair Value		Cost		Fair Value
Short-term investments
Bonds- corporate issuances	$	37,200,576	$	37,156,381	$	8,164,227	$	8,037,620
Bond maturities
Within 3 months	$	7,799,032	$	7,797,689	$	3,053,740	$	3,002,350
Between 3-12 months		29,401,543		29,358,692		5,110,487		5,035,270
Total	$	37,200,576	$	37,156,381	$	8,164,227	$	8,037,620

Schedule of Unrealized Loss on Investments [Table Text Block]

December 31, 2013	Less than 12 months					12 months or Longer				Total
Description of Securities	Fair Value		Gross Unrealized Holding Losses			Fair Value		Gross Unrealized Holding Losses		Fair Value		Gross Unrealized Holding (Losses) Gains
Available for Sale
Bonds – corporate issuances	$	37,156,381	$	(44,195	)		−		−	$	37,156,381	$	(44,195	)

December 31, 2012	Less than 12 months					12 months or Longer				Total
Description of Securities	Fair Value		Gross Unrealized Holding Losses			Fair Value		Gross Unrealized Holding Losses		Fair Value		Gross Unrealized Holding (Losses) Gains
Available for Sale
Bonds – corporate	$	8,037,620	$	(126,607	)		−		−	$	8,037,620	$	(126,607	)