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Accrued Liabilities
6 Months Ended
Jun. 30, 2021
Accrued Liabilities  
Accrued Liabilities

Note 5. Accrued Liabilities

The components of accrued liabilities are summarized below (in thousands):

June 30, 

December 31, 

    

2021

    

2020

 

Accrued compensation and related charges

$

3,625

$

4,417

Preferred stock dividends payable

2,901

2,901

Accrued product warranty

792

609

Payable in connection with land restoration of Nanjing JinMei factory

758

750

Accrued professional services

634

675

Current portion of operating lease liabilities

466

445

Advance from customers

258

374

Payable in connection with construction

222

1,457

Other personnel-related costs

193

101

Accrued income taxes

163

760

Other tax payable

106

295

Accrual for sales returns

33

81

Payable in connection with repurchase of subsidiaries shares

1,439

Other accrued liabilities

1,396

1,691

$

11,547

$

15,995