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Revenue (Tables)
12 Months Ended
Dec. 31, 2023
Revenue  
Summary of company's revenue, net disaggregated by type of product and service

    

2023

    

2022

Product sales

$

4,270

$

6,681

Software as a service and related services

 

784

 

348

Ancillary services

 

376

 

239

Total revenue

$

5,430

$

7,268

Summary of change in contract liabilities

    

Contract liabilities

Balance at January 1, 2022

$

75

Prepayments

 

570

Revenue recognition

 

(348)

Balance at December 31, 2022

 

297

Prepayments

 

2,552

Revenue recognition

 

(784)

Balance at December 31, 2023

$

2,065

Contract liabilities, noncurrent

 

121

Summary of change in accounts receivables allowance

December 31,

2023

2022

Beginning balance

    

$

290

    

$

145

Reversal of account receivables allowance

 

(304)

 

(13)

Bad debt expense

 

194

 

158

Ending balance

$

180

$

290