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Property Plant and Equipment (Tables)
3 Months Ended
Mar. 31, 2023
Property, Plant and Equipment [Abstract]  
Schedule of Property and Equipment, Net

Property and equipment, net consist of the following:

 

   March 31,   December 31, 
   2023   2022 
Manufacturing and customer equipment  $3,637,000   $3,637,000 
Other property   69,000    69,000 
Property and equipment, gross   3,706,000    3,706,000 
Less: accumulated depreciation   (3,409,000)   (3,317,000)
Property and equipment, net of depreciation  $297,000   $389,000