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Leases (Tables)
 3 Months Ended
Mar. 31, 2022
Leases [Abstract]  
Schedule of components of lease expense
   Three Months
Ended
March 31,
2022		   Three Months
Ended
March 31,
2021		 
Operating lease cost (1)  $166   $176 
           
Finance lease cost:          
Amortization of leased assets  $30   $169 
Interest on lease liabilities   2    4 
Total finance lease cost  $32   $173 

(1) Includes short-term lease costs of $44,000 and $38,000 for the three months ended March 31, 2022 and 2021, respectively.
Schedule of supplemental cash flow information related to leases
   Three Months
Ended
March 31,
2022		   Three Months Ended
March 31,
2021		 
Cash paid for amounts included in leases:        
Operating cash flows from operating leases  $(184)   (210)
Operating cash flows from finance leases   (2)   (4)
Financing cash flows from finance leases   (61)   (148)
           
Right-of-use assets obtained in exchange for lease obligations:          
Operating leases   
-
    - 

 
Schedule of supplemental balance sheet information
   March 31,
2022		   December 31,
2021		 
Operating leases        
Operating lease right-of-use assets  $450   $584 
           
Current portion of operating lease obligations  $245   $425 
Operating lease liabilities, net of current portion   95    117 
Total operating lease liabilities  $340   $542 
           
Finance leases          
Property and equipment, at cost  $2,707   $3,463 
Accumulated depreciation   (2,472)   (3,199)
Property and equipment, net  $235   $264 
           
Current portion of finance lease obligations  $150   $258 
Finance lease liabilities, net of current portion   101    65 
Total finance lease liabilities  $251   $323 

  

   March 31,
2022		   March 31,
2021		 
Weighted Average Remaining Lease Term        
Operating leases   1.5 years    1.5 years 
Finance leases   2.0 years    0.9 years 
           
Weighted Average Discount Rate:          
Operating leases (2)   5%   5%
Finance leases   2%   2%

  

(2)  Upon adoption of the new lease standard, discount rates used for existing leases were established at January 1, 2019

 
Schedule of future minimum payments under non-cancellable operating lease commitments
Year ending December 31,  Total 
2022 (remaining months)   219 
2023   79 
2024   59 
    357 
Less imputed interest   (17)
Total lease liabilities  $340 
Less current portion   (245)
   $95 

  
Schedule of future minimum payments under non-cancellable finance leases
Year ending December 31,  Total 
2022 (remaining months)  $126 
2023   90 
2024   30 
2025   11 
Total minimum payments required:   257 
Less amount representing interest:   (6)
Present value of net minimum lease payments:   251 
Less current portion   (150)
   $101