Quarterly report pursuant to Section 13 or 15(d)

Schedule of Finite-Lived Intangible Assets (Details)

v3.21.2
Schedule of Finite-Lived Intangible Assets (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 4,640 $ 4,530
Accumulated Amortization (3,755) (3,655)
Finite-Lived Intangible Assets, Net $ 885 875
Patents [Member]    
Finite-Lived Intangible Assets [Line Items]    
Weighted Average Amortization Period (Years) 12 years 6 months  
Gross Carrying Amount $ 746 742
Accumulated Amortization (343) (334)
Finite-Lived Intangible Assets, Net $ 403 408
Software [Member]    
Finite-Lived Intangible Assets [Line Items]    
Weighted Average Amortization Period (Years) 3 years  
Gross Carrying Amount $ 524 418
Accumulated Amortization (413) (411)
Finite-Lived Intangible Assets, Net $ 111 7
Customer Relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Weighted Average Amortization Period (Years) 10 years  
Gross Carrying Amount $ 3,370 3,370
Accumulated Amortization (2,999) (2,910)
Finite-Lived Intangible Assets, Net $ 371 $ 460