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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2023
Accounting Policies [Abstract]  
Summary of Average Estimated Useful Lives of Assets Provisions for depreciation are calculated using the straight-line method over the following average estimated useful lives of the assets:

 

 

 

Years

 

Laboratory equipment

 

5

 

Software and computer equipment

 

3

 

Machinery and equipment

 

2-20

 

Furniture and fixtures

 

7

 

Vehicles

 

5

 

Leasehold improvements

 

2-10

*

 

*Leasehold improvements are depreciated over the shorter of the estimated life of the asset or the remaining life of the lease.
Amounts Recognized in Consolidated Statements of Operations and Comprehensive Loss Net Amounts recognized in the consolidated statements of operations and comprehensive loss were as follows (in thousands):

 

 

 

Year Ended December 31,

 

 

 

2023

 

 

2022

 

Research and development

 

$

3

 

 

$

75

 

Selling, general and administrative

 

 

714

 

 

 

1,031

 

Total stock-based compensation

 

$

717

 

 

$

1,106

 
Schedule of Customers Representing Greater than 10% of Account Receivable and Total Revenue

Significant customers are those that represent greater than 10% of the Company’s total revenues or gross accounts receivable balance at each respective balance sheet date.

Customers representing greater than 10% of accounts receivable were as follows (in percentages):

 

 

 

As of
December 31,

 

 

 

2023

 

 

2022

 

Customer A

 

 

—

 

 

 

57

 

Customer B

 

 

19

 

 

 

—

 

 

Customers representing greater than 10% of total revenues were as follows (in percentages):

 

 

 

For Year Ended
December 31,

 

 

 

2023

 

 

2022

 

Customer B

 

 

10

 

 

 

—

 

Customer C

 

 

—

 

 

 

13

 

Customer D

 

 

15

 

 

 

—