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Balance Sheet Components (Tables)
6 Months Ended
Jun. 30, 2020
Balance Sheet Components  
Schedule of Inventory

Inventory consisted of the following (in thousands):

​

​

​

​

​

​

​

​

​

​

June 30, 

​

December 31,

​

    

2020

    

2019

Raw materials

​

$

302

​

$

119

Work-in-process

​

 

6,233

​

 

6,329

Finished goods

​

 

1,833

​

 

1,415

Total inventory

​

$

8,368

​

$

7,863

Schedule of accrued liabilities

Accrued liabilities consisted of the following (in thousands):

​

​

​

​

​

​

​

​

​

​

June 30, 

​

December 31,

​

    

2020

    

2019

Accrued payroll-related expenses

​

$

755

​

$

1,236

Accrued joint development agreement expenses

​

​

—

​

​

170

Accrued inventory

​

​

252

​

​

87

Restructuring expenses

​

 

67

​

 

782

Other

​

 

318

​

 

452

Total accrued liabilities

​

$

1,392

​

$

2,727