Annual report pursuant to Section 13 and 15(d)

INVESTMENTS (Details Narrative)

v3.22.1
INVESTMENTS (Details Narrative)
1 Months Ended 12 Months Ended
Sep. 28, 2020
USD ($)
$ / shares
Sep. 28, 2020
₩ / shares
Feb. 29, 2020
Oct. 31, 2018
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2018
USD ($)
Schedule Of Investments [Line Items]              
Secured debt percentage     10.00%        
Call option agreement date Sep. 28, 2020            
Debt instrument, maturity date     Apr. 21, 2021        
EJ Holding, Inc. [Member]              
Schedule Of Investments [Line Items]              
Secured debt percentage       1.00%      
Investment amount             $ 32,000
Percentage of voting interest             40.00%
Unsecured debt       $ 13,600,000      
Debt instrument, maturity date       Sep. 30, 2028      
Unsecured debt, additional borrowings         $ 6,300,000 $ 4,000,000.0  
Loan receivables         $ 22,600,000 $ 18,600,000  
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       Oct. 16, 2030    
Secured debt percentage 2.10% 2.10%     2.10%    
Convertible bond initial conversion price | (per share) $ 8.00 ₩ 9,232          
Japan Industrial Partners [Member] | EJ Holding, Inc. [Member]              
Schedule Of Investments [Line Items]              
Equity method investment, ownership percentage             60.00%
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