Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2020

Accrued Liabilities

Schedule of components of accrued liabilities

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

	March 31,		December 31,
	2020		2019
Preferred stock dividends payable	$	2,901	$	2,901
Accrued compensation and related charges		2,552		3,307
Payable in connection with land restoration of Nanjing JinMei factory		691		703
Payable in connection with construction		604		1,447
Advance from customers		429		396
Current portion of operating lease liabilities		363		319
Accrued product warranty		362		387
Accrued professional services		324		630
Current portion of royalty payments		300		—
Accrued income taxes		238		171
Other tax payable		162		50
Payable in connection with repurchase of subsidiaries shares		151		151
Other personnel-related costs		56		180
Accrual for sales returns		13		26
Other accrued liabilities		1,225		1,013
	$	10,371	$	11,681