Registration of securities issued in business combination transactions

SUBSEQUENT EVENTS (Details Narrative)

v3.21.2
SUBSEQUENT EVENTS (Details Narrative)
12 Months Ended
Aug. 02, 2021
USD ($)
Number
shares
Dec. 31, 2020
USD ($)
shares
Aug. 01, 2021
shares
Jun. 30, 2021
shares
Dec. 31, 2019
shares
Dec. 31, 2018
shares
Subsequent Event [Line Items]            
Proceeds from sale   $ 8,900,000        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares   1,173,190   1,069,925 1,130,472 1,380,492
2011 Executive Incentive Compensation Plan [Member]            
Subsequent Event [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares   1,445,885   1,168,630    
Subsequent Event [Member] | 2011 Executive Incentive Compensation Plan [Member]            
Subsequent Event [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares 0   995,530      
Subsequent Event [Member] | 2011 Executive Incentive Compensation Plan [Member] | Restricted Stock Units (RSUs) [Member]            
Subsequent Event [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | shares     98,705      
Subsequent Event [Member] | Lantronix [Member]            
Subsequent Event [Line Items]            
Number Of Former Employees Hired | Number 63          
Discontinued Operations, Disposed of by Sale [Member]            
Subsequent Event [Line Items]            
Proceeds from sale   $ 8,900,000        
Discontinued Operations, Disposed of by Sale [Member] | E&S Sale Transaction [Member]            
Subsequent Event [Line Items]            
Severance payments $ 1,250,000          
Discontinued Operations, Disposed of by Sale [Member] | E&S Sale Transaction [Member] | Subsequent Event [Member]            
Subsequent Event [Line Items]            
Proceeds from sale 24,160,000          
Sale price $ 25,027,566          
Earnout Contingency, Number of Successive Intervals After Closing | Number 2          
Earnout Contingency, Successive Interval Period 180 days          
Number Of Employees Terminated | Number 75          
Non-Cash Charge Relating To Acceleration And Settlement Of Outstanding Equity Awards $ 325,000          
Discontinued Operations, Disposed of by Sale [Member] | E&S Sale Transaction [Member] | Subsequent Event [Member] | Maximum [Member]            
Subsequent Event [Line Items]            
Contingent earnout receivable $ 7,000,000          
Service Agreement Period 12 months