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Revenue from contracts with customers (Tables)
6 Months Ended 12 Months Ended
Jun. 30, 2022
Dec. 31, 2021
Disaggregation of Revenue [Line Items]    
Disaggregation of revenue  
The following table depicts the disaggregation of revenue by type of products or services and timing of transfer of products or services (in thousands):

    
Years ended
December 31,
 
    
2021
    
2020
 
Type of products or services
                 
QCaaS
   $ 4,424      $ 4,313  
Professional services
     1,786        426  
Other revenue
     69        421  
    
 
 
    
 
 
 
Total revenue, net
   $ 6,279      $ 5,160  
    
 
 
    
 
 
 
Timing of revenue recognition
                 
Revenue recognized over time
   $ 6,090      $ 4,688  
Revenue recognized at a point in time
     189        472  
    
 
 
    
 
 
 
Total revenue, net
   $ 6,279      $ 5,160  
    
 
 
    
 
 
 
Accounts receivable, contract assets and liabilities, and changes in deferred revenue  
The following table provides information about account receivable, contract assets and liabilities as of December 31, 2021, and 2020 (in thousands):
 
    
December 31,
 
    
2021
    
2020
 
Contract assets:
                 
Trade account receivable, net
   $ 421      $ 590  
Unbilled receivables, which are included in ‘Prepaid expenses and other current assets’
     17        10  
    
 
 
    
 
 
 
Total contract assets
     438        600  
    
 
 
    
 
 
 
Contract liabilities:
                 
Deferred revenue, current
     2,665        4,713  
Deferred revenue, noncurrent
     54        —    
Customer deposit, which are included in ‘Accrued expenses and other current liabilities’
     21        —    
    
 
 
    
 
 
 
Total contract liabilities
     2,740        4,713  
    
 
 
    
 
 
 
Changes in deferred revenue from contracts with customers were as follows (in thousands):
 
    
Years ended
December 31,
 
    
2021
    
2020
 
Balance at beginning of period
   $ 4,713      $ 4,921  
Deferral of revenue
     4,092        4,513  
Recognition of deferred revenue
     (6,086      (4,721
    
 
 
    
 
 
 
Balance at the end of period
   $ 2,719      $ 4,713  
    
 
 
    
 
 
 
DWave System [Member]    
Disaggregation of Revenue [Line Items]    
Disaggregation of revenue  
    
Three months
ended June 30,
 
    
2022
    
2021
 
Type of products or services
                 
QCaaS
   $ 1,176      $ 961  
Professional services
     156        158  
Other revenue
     39        18  
    
 
 
    
 
 
 
Total revenue, net
   $ 1,371      $ 1,137  
    
 
 
    
 
 
 
Timing of revenue recognition
                 
Revenue recognized over the time
   $ 1,296      $ 1,099  
Revenue recognized at a point in time
     75        38  
    
 
 
    
 
 
 
Total revenue, net
   $ 1,371      $ 1,137  
    
 
 
    
 
 
 
 
 
  
Six months ended
June 30,
 
 
  
2022
 
  
2021
 
Type of products or services
  
     
  
     
QCaaS
   $ 2,560      $ 2,083  
Professional services
     464        429  
Other revenue
     59        34  
    
 
 
    
 
 
 
Total revenue, net
   $ 3,083      $ 2,546  
    
 
 
    
 
 
 
Timing of revenue recognition
                 
Revenue recognized over the time
   $ 2,957      $ 2,484  
Revenue recognized at a point in time
     126        62  
    
 
 
    
 
 
 
Total revenue, net
   $ 3,083      $ 2,546  
    
 
 
    
 
 
 
Accounts receivable, contract assets and liabilities, and changes in deferred revenue
The following table provides information about account receivable, contract assets and liabilities as of June 30, 2022 and December 31, 2021 (in thousands):
 
 
  
June 30,
 
  
December 31,
 
 
  
2022
 
  
2021
 
Contract assets:
  
     
  
     
Trade account receivable
   $ 918      $ 421  
Unbilled receivables, which are included in ‘Prepaid expenses and other current assets’
     41        17  
    
 
 
    
 
 
 
Total contract assets
     959        438  
    
 
 
    
 
 
 
Contract liabilities:
                 
Deferred revenue, current
     2,595        2,665  
Deferred revenue, noncurrent
     20        54  
Customer deposit, which are included in ‘Accrued expenses and other current liabilities’
     21        21  
    
 
 
    
 
 
 
Total contract liabilities
  
$
2,636     
$
2,740  
    
 
 
    
 
 
 
Changes in deferred revenue from contracts with customers were as follows (in thousands):
 
 
  
June 30,
 
  
December 31,
 
 
  
2022
 
  
2021
 
Balance at beginning of period
   $ 2,719      $ 4,713  
Deferral of revenue
     2,906        4,092  
Recognition of deferred revenue
     (3,010      (6,086
    
 
 
    
 
 
 
Balance at end of period
   $ 2,615      $ 2,719