Note 4 - Property and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Property, Plant and Equipment [Table Text Block]

	December 31, 2017						December 31, 2016
	Cost		Accumulated depreciation		Net book value		Cost		Accumulated depreciation		Net book value		Estimated useful life (years)
Computer & office equipment	$	2,322,833	$	1,949,982	$	372,851	$	2,125,067	$	1,761,879	$	363,188		5
Leasehold improvements		118,380		98,901		19,479		114,719		89,789		24,930		5
Computer software		2,010,999		1,886,342		124,657		1,925,462		1,720,399		205,063		3
Office furniture		162,799		127,248		35,551		158,436		114,065		44,371		5
Total	$	4,615,011	$	4,062,473	$	552,538	$	4,323,684	$	3,686,132	$	637,552