Note 4 - Property and Equipment (Details) - Property and Equipment - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 9,769,064	$ 8,661,845
Less accumulated depreciation/amortization	(7,046,294)	(6,202,948)
Property and equipment—net	2,722,770	2,458,897
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	9,333,316	8,221,009
Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	57,359	62,447
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 378,389	$ 378,389