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Accrued Liabilities
9 Months Ended
Sep. 30, 2021
Payables and Accruals [Abstract]  
Accrued Liabilities

Note 9 - Accrued Liabilities

Accrued liabilities consisted of the following at September 30, 2021 and December 31, 2020 (in thousands):

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September 30, 2021

    

December 31, 2020

Accrued salaries, benefits and bonus

​

$

59,559

​

$

36,892

Accrued professional, consulting and lobbying fees

​

 

5,282

​

 

3,055

Accrued warranty expense

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1,363

​

 

769

Accrued income and other taxes

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​

4,459

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​

3,848

Accrued inventory in transit

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6,316

​

 

4,597

Other accrued expenses

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11,915

​

 

10,682

Accrued liabilities

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$

88,894

​

$

59,843

​