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COMMITMENTS AND CONTINGENCIES (Details Narrative)
 3 Months Ended
Mar. 31, 2021
USD ($)
Dec. 31, 2020
EUR (€)
Dec. 31, 2020
USD ($)
Loss Contingencies [Line Items]      
Employee benefit payment term description The payment benefits range from $1,000 per month to $3,000 per month with the term of such payments limited to 15 years after the employee’s retirement.    
Other compensation liabilities $ 475,000   $ 499,000
Other compensation liabilities, noncurrent 427,000   436,000
Other compensation liabilities, current 48,000   63,000
Cash surrender value of life insurance 1,562,000   1,556,000
Maximum aggregate claim amount 4,300,000    
Liabilities recorded $ 340,000   $ 642,000
Insurance Claims [Member]      
Loss Contingencies [Line Items]      
Potential liability per claim minimum range, description zero    
GBP United Kingdom Pounds [Member]      
Loss Contingencies [Line Items]      
Payment of defendant's cost | €   € 320,000  
Minimum [Member]      
Loss Contingencies [Line Items]      
Payment benefit to employee's $ 1,000    
Deductibles per claim 25,000    
Maximum [Member]      
Loss Contingencies [Line Items]      
Payment benefit to employee's 3,000    
Deductibles per claim 2,000,000    
Maximum [Member] | Insurance Claims [Member]      
Loss Contingencies [Line Items]      
Potential liability per claim maximum range, value $ 2,000,000