Note 4 - Property and Equipment (Details) - Property and Equipment (USD $)	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 707,900	$ 1,823,400
Less: accumulated depreciation and amortization	345,400	1,521,300
	362,500	302,100
Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	306,400	1,243,500
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	233,900	432,400
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 167,600	$ 147,500