Note 4 - Property and Equipment, Net - Property and Equipment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Cost	$ 4,615,011	$ 4,323,684
Accumulated Depreciation	4,062,473	3,686,132
Net Book Value	552,538	637,552
Computer And Office Equipment [Member]
Cost	2,322,833	2,125,067
Accumulated Depreciation	1,949,982	1,761,879
Net Book Value	$ 372,851	363,188
Estimated Useful Lives (Year)	5 years
Leasehold Improvements [Member]
Cost	$ 118,380	114,719
Accumulated Depreciation	98,901	89,789
Net Book Value	$ 19,479	24,930
Estimated Useful Lives (Year)	5 years
Computer Equipment [Member]
Cost	$ 2,010,999	1,925,462
Accumulated Depreciation	1,886,342	1,720,399
Net Book Value	$ 124,657	205,063
Estimated Useful Lives (Year)	3 years
Furniture and Fixtures [Member]
Cost	$ 162,799	158,436
Accumulated Depreciation	127,248	114,065
Net Book Value	$ 35,551	$ 44,371
Estimated Useful Lives (Year)	5 years