Note 10 - Convertible Notes - Related Parties (Tables)

9 Months Ended

Sep. 30, 2018

Notes Tables

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

	September 30 , 2018		December 31, 2017
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 due to Harold Aubrey de Lavenu, a Director of CEN, bearing interest at 5% per annum. This note is convertible to 656,250 common shares with maturity dates between November 30, 2018 and February 19, 2019.		1,050,000		1,050,000
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 November 30, 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, 2020		224,191		224,191
Total loans and convertible notes payable		2,710,313		2,710,313
Less current portion		1,098,000		2,210,313
Loans and convertible notes payable, less current portion	$	1,612,313	$	500,000