Note 4 - Prepaid Expenses, Deposits and Other Assets (Details Textual) - USD ($)	1 Months Ended	3 Months Ended
	Jul. 31, 2013	Jun. 30, 2015	Dec. 31, 2014
Maxim Group LLC [Member]
Term of Agreement	3 years
Share-based Goods and Nonemployee Services Transaction, Shares Approved for Issuance	210,250
Share Price	$ 15
Share-based Goods and Nonemployee Services Transaction, Capitalized Cost	$ 3,153,750
Value of Shares of Common Stock Recognized Per Quarter		$ 262,813
Prepaid Expenses, Deposits, and Other Assets		1,051,249
Prepaid Expenses, Deposits, and Other Assets		$ 1,357,191	$ 2,286,930