XML 74 R61.htm IDEA: XBRL DOCUMENT v3.21.1
Property, Plant and Equipment, net (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Property, Plant and Equipment, net (Details) [Line Items]    
Tangible Asset Impairment Charges $ 118,000 $ 76,000
Depreciation 252,000 241,000
Equipment [Member]    
Property, Plant and Equipment, net (Details) [Line Items]    
Pledged Assets, Other, Not Separately Reported on Statement of Financial Position $ 2,200,000 $ 2,300,000