Note 7 - Investment in Marketable Securities (Details) - Historical Cost and Estimated Fair Value of Available-for-sale Securities (Under Review) (USD $)	6 Months Ended		12 Months Ended
	Jun. 30, 2014		Dec. 31, 2013
Historical Cost and Estimated Fair Value of Available-for-sale Securities (Under Review) [Abstract]
Amortized cost	$ 4,710,325		$ 3,446,037
Gross Unrealized Gains (Losses)	(6,855)		(65,173)
Fair Value*	$ 4,703,470	[1]	$ 3,380,864	[1]

[1] The Company received $227,612 in principal repayments during the six months ended June 30, 2014