Intangible assets

12 Months Ended

Dec. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets Disclosure [Text Block]

9. Intangible assets:

			Accumulated		Net book
2013	Cost		amortization		value
Marketing rights	$	15,830	$	199	$	15,631
Trade name		1,131		14		1,117
Patents		4,179		2,858		1,321
	$	21,140	$	3,071	$	18,069

			Accumulated		Net book
2012	Cost		amortization		value
Patents	$	4,032	$	2,526	$	1,506

Trade name and marketing rights were acquired in connection with the acquisition of Correvio (note 4).

Amortization expense for the year ended December 31, 2013 amounted to $545 (year ended December 31, 2012 - $334).

The estimated aggregate amortization expense for intangible assets held at December 31, 2013, for each of the five succeeding years is expected as follows:

2014	$	2,002
2015		1,962
2016		1,875
2017		1,857
2018		1,825
	$	9,521