Note 10 - Convertible Notes - Related Party (Tables)

3 Months Ended

Mar. 31, 2019

Notes Tables

Schedule of Convertible Notes Payable to Related Party [Table Text Block]

	March 31, 2019		December 31, 2018
Convertible note due to the spouse of Bill Chaaban, President of CEN, which bears an interest at 12% per annum. This note is convertible to 867,576 common shares with a maturity date of August 17, 2020.	$	1,388,122	$	1,388,122
Convertible notes in default due to Harold Aubrey de Lavenu, a Director of CEN, bearing interest at 5% per annum. These notes are convertible to 548,980 common shares with maturity dates of March 31, 2019.		878,368		878,368
Convertible note in default due to Alex Tarrabain, a Director of CEN, bearing interest at 5% per annum. This note is convertible to 30,000 common shares with a maturity date of March 31, 2019.		48,000		48,000
Convertible notes due to Joseph Byrne, CEO of CEN, bearing interest at 12% per annum. This note is convertible to 140,120 common shares with a maturity date of August 17, 2020.		224,191		224,191
Total convertible notes payable - related party		2,538,681		2,538,681
Less current portion		926,368		926,368
Convertible notes payable - related party, less current portion	$	1,612,313	$	1,612,313