Note 2 - Significant Accounting Policies (Details) - Property and Equipment Depreciation Rates	12 Months Ended
	Dec. 31, 2014
Computer Equipment [Member] | Minimum [Member]
Note 2 - Significant Accounting Policies (Details) - Property and Equipment Depreciation Rates [Line Items]
Property and equipment, annual depreciation rates	20.00%
Computer Equipment [Member] | Maximum [Member]
Note 2 - Significant Accounting Policies (Details) - Property and Equipment Depreciation Rates [Line Items]
Property and equipment, annual depreciation rates	33.00%
Office Furniture and Equipment [Member] | Minimum [Member]
Note 2 - Significant Accounting Policies (Details) - Property and Equipment Depreciation Rates [Line Items]
Property and equipment, annual depreciation rates	6.00%
Office Furniture and Equipment [Member] | Maximum [Member]
Note 2 - Significant Accounting Policies (Details) - Property and Equipment Depreciation Rates [Line Items]
Property and equipment, annual depreciation rates	15.00%
Leasehold Improvements [Member]
Note 2 - Significant Accounting Policies (Details) - Property and Equipment Depreciation Rates [Line Items]
Leasehold improvements	The shorter of term of the lease or the useful life of the asset