Note 12 - Convertible Notes - Related Party (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

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

	2017		2016
Convertible note due to Bill Chaaban, President of CEN, which bears an interest at 12% per annum. This note is convertible to 871,576 common shares with a maturity date of December 31, 2018.	$	1,388,122	$	1,388,122
Convertible notes due to Harold Aubrey de Lavenu, a Director of CEN, bearing interest at 5% per annum. This note is convertible to 550,000 common shares with maturity dates between May 2018 and Feb 2019.		1,050,000		550,000
Convertible note 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 October 26, 2018.		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, 2018.		224,191		224,191
Total convertible notes payable - related party		2,710,313		2,210,313
Less current portion		2,210,313		-
Convertible notes payable - related party, less current portion	$	500,000	$	2,210,313