From the Q1 report. Answers the question, Denselight sale not officially completed until we get all of the cash:

"Upon completing the sale of DenseLight and receiving the full sale proceeds of $26,000,000, holders of Convertible Debentures will have the right to cause the Company to repurchase the Convertible Debentures at face value, subject to certain restrictions. The Convertible Debentures are governed by a trust indenture between the Company and TSX Trust Company as trustee. The Company has not notified the trustee or the holders of the debentures that the sale of DenseLight has been completed and will not do so until the final payment of $5,000,000 is received from the Buyers, which is expected on or before May 31, 2020."