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Summary of Significant Accounting Policies (Details)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2022
USD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2022
USD ($)
Jun. 30, 2021
USD ($)
Dec. 31, 2021
USD ($)
Summary of Significant Accounting Policies (Details) [Line Items]          
Number of customers     3    
Customer deposits $ 1,417,000   $ 1,417,000   $ 1,470,000
Revenue recognized 0 $ 370,000 $ 53,000 $ 375,000  
Backlog represents executed non-cancellable contracts description     Backlog represents executed non-cancellable contracts that represent firm orders that are deliverable over the next 18- month period. As of June 30, 2022, backlog relating to remaining performance obligations in contracts was approximately $73,000,000. We expect to recognize revenue amounts in future periods related to these remaining performance obligations as follows: approximately $25,000,000 to $30,000,000 of our backlog during the remainder of 2022, approximately $25,000,000 to $30,000,000 from January 1, 2023 - June 30, 2023, and approximately $13,000,000 to $18,000,000 from July 1, 2023 through December 31, 2023. This expectation is based on the Company’s belief that raw material will be delivered on time from its suppliers, and that its customers will accept delivery as scheduled.     
Stock based compensation expense 141,000 $ 57,000 $ 207,000 $ 214,000  
Goodwill $ 163,000   $ 163,000   $ 163,000
Three Customers [Member]          
Summary of Significant Accounting Policies (Details) [Line Items]          
Number of customers       3  
Concentration risk percentage 66.20% 76.20%   77.00%  
Four Customers [Member]          
Summary of Significant Accounting Policies (Details) [Line Items]          
Number of customers     4    
Concentration risk percentage     77.90%    
Customer [Member]          
Summary of Significant Accounting Policies (Details) [Line Items]          
Concentration risk percentage       10.00%  
Accounts Receivable [Member]          
Summary of Significant Accounting Policies (Details) [Line Items]          
Number of customers     3    
Concentration risk percentage     67.70%   74.70%
Director [Member]          
Summary of Significant Accounting Policies (Details) [Line Items]          
Stock based compensation expense $ 54,000 $ 52,000 $ 108,000 $ 104,000