Deferred consideration

12 Months Ended

Dec. 31, 2016

Business Combinations [Abstract]

Business Combination Disclosure [Text Block]

11. Deferred consideration:

On November 18, 2013, the Company completed the acquisition of Correvio LLC through the purchase of a combination of assets and shares in exchange for 19.9% of the Company’s then outstanding shares and deferred consideration of $12,000. The deferred consideration is being repaid monthly at an amount equal to 10% of cash receipts from product sales and any applicable interest accrued at 10% compounded annually.  The deferred consideration must be repaid in full by December 1, 2019.