Annual report pursuant to Section 13 and 15(d)

RELATED PARTY TRANSACTIONS (Details Narrative)

v3.21.1
RELATED PARTY TRANSACTIONS (Details Narrative)
₩ in Millions, $ in Millions
12 Months Ended
Sep. 28, 2020
Dec. 31, 2020
USD ($)
Dec. 31, 2020
KRW (₩)
Feb. 28, 2020
Dec. 31, 2019
shares
Related Party Transaction [Line Items]          
Marketable securities common stock outstanding         4,844,622
Percentage of marketable securities common stock outstanding         8.50%
Secured debt percentage       10.00%  
Telcon, Inc. ("Telcon") [Member]          
Related Party Transaction [Line Items]          
Convertible notes payable, carrying amount   $ 27.9 ₩ 30    
Convertible bond maturity date Oct. 16, 2030 Oct. 16, 2030      
Secured debt percentage 2.10% 2.10% 2.10%