Quarterly report pursuant to Section 13 or 15(d)

INVESTMENTS (Details Narrative)

v3.22.2.2
INVESTMENTS (Details Narrative)
₩ / shares in Units, $ / shares in Units, ₩ in Millions
1 Months Ended 12 Months Ended
Sep. 28, 2020
USD ($)
$ / shares
Sep. 28, 2020
₩ / shares
Oct. 31, 2018
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2021
KRW (₩)
Dec. 31, 2020
USD ($)
Dec. 31, 2020
KRW (₩)
Sep. 30, 2022
USD ($)
Feb. 28, 2022
USD ($)
Feb. 28, 2022
KRW (₩)
Dec. 31, 2018
USD ($)
Schedule Of Investments [Line Items]                      
Call option agreement date Sep. 28, 2020                    
Realized net loss on investment bond       $ 126,000   $ 126,000          
Other income       41,000   41,000          
EJ Holdings, Inc. [Member]                      
Schedule Of Investments [Line Items]                      
Secured debt percentage     1.00%                
Investment amount                     $ 32,000
Percentage of voting interest                     40.00%
Unsecured debt     $ 13,200,000                
Debt instrument, maturity date     Sep. 30, 2028                
Unsecured debt, additional borrowings               $ 4,200,000      
Loan receivables       22,600,000       $ 21,700,000      
EJ Holdings, Inc. [Member] | Japan Industrial Partners [Member]                      
Schedule Of Investments [Line Items]                      
Equity method investment, ownership percentage                     60.00%
Maximum [Member]                      
Schedule Of Investments [Line Items]                      
Percentage of principal amount of convertible bond to be repurchased 50.00%                    
Telcon, Inc. ("Telcon") [Member]                      
Schedule Of Investments [Line Items]                      
Convertible bond maturity date Oct. 16, 2030                    
Secured debt percentage 2.10% 2.10%                  
Convertible bond initial conversion price | (per share) $ 8.00 ₩ 9,232                  
Offset amount against principal amount of convertible bond                 $ 2,900,000 ₩ 3,500  
Cash proceeds to shortfall in revenue and profits       $ 310,000 ₩ 400 $ 310,000 ₩ 400        
Convertible Bond Purchase Agreement [Member] | Telcon, Inc. ("Telcon") [Member]                      
Schedule Of Investments [Line Items]                      
Purchase of principal amount of convertible bond at face value $ 26,100,000