Note 6 - Property and Equipment, net (Tables)
|12 Months Ended|
Dec. 31, 2015
|Property and Equipment [Member]|
|Note 6 - Property and Equipment, net (Tables) [Line Items]|
|Property, Plant and Equipment [Table Text Block]||The following is a summary of property and equipment, net for the periods indicated:
Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.
Reference 1: http://www.xbrl.org/2003/role/presentationRef