Annual report pursuant to Section 13 and 15(d)

INVESTMENTS (Details Narrative)

v3.23.1
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
Feb. 28, 2022
USD ($)
Feb. 28, 2022
KRW (₩)
Oct. 31, 2018
USD ($)
Dec. 31, 2022
USD ($)
Feb. 28, 2022
KRW (₩)
Dec. 31, 2021
USD ($)
Dec. 31, 2018
USD ($)
Schedule Of Investments [Line Items]                  
Secured debt percentage         1.00%        
Call option agreement date Sep. 28, 2020                
Realized net loss on investment bond     $ 126,000            
Other Income     41,000            
Investment amount                 $ 32,000
Unsecured debt         $ 13,600,000        
Debt instrument, maturity date         Sep. 30, 2028        
Unsecured debt, additional borrowings           $ 5,300,000   $ 6,300,000  
Notes Receivable Gross           $ 25,000,000.0   $ 22,600,000  
E J Holdings Inc [Member]                  
Schedule Of Investments [Line Items]                  
Equity method investment, ownership percentage                 40.00%
Telcon, Inc. ("Telcon") [Member]                  
Schedule Of Investments [Line Items]                  
Convertible bond maturity date Oct. 16, 2030         Oct. 16, 2030      
Secured debt percentage 2.10% 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          
Japan Industrial Partners [Member] | E J Holdings Inc [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%                
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