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Summary of significant accounting policies (Tables)
6 Months Ended
Jun. 30, 2022
Accounting Policies [Abstract]  
Reconciliation of cash

    

End of

    

Beginning of

 

period-

 

period-

 

June 30, 

 

December 31, 

 

2022

2021

Cash and cash equivalents

$

158,158

$

189,718

Restricted cash included in deposits and other assets

 

16,087

 

7,500

Total Cash, cash equivalents and restricted cash per statement of cash flows

$

174,245

$

197,218

Schedule of Inventory

    

June 30, 2022

    

December 31, 2021

Raw materials

$

1,382

$

1,418

Work in progress

 

7,034

 

7,721

Finished goods

 

6,588

 

6,717

Total inventory

$

15,004

$

15,856