Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 28,747	$ 27,709
Restricted cash	4,646	7,003
Accounts receivable, net, trade receivables	96,865	71,034
Accounts receivable, net, related parties		583
Other receivables, others	8,092	12,923
Other receivables, related parties	32	65
Inventories	35,439	33,868
Contract assets	16,680	11,381
Prepaid expenses and other current assets	4,185	4,185
Total current assets	194,686	168,751
Property, plant and equipment, net	6,769	5,518
Right-of-use assets from operating leases	20,469
Goodwill	3,977	3,977
Intangible assets, net	12,381	5,649
Deferred tax assets, net	1,622	2,752
Long-term restricted cash	242	936
Other assets	6,001	2,424
Total assets	246,147	190,007
Current liabilities:
Accounts payable, trade	38,331	36,865
Accounts payable, related parties	96	1,743
Short-term debt - Bank and trade facilities	17,484	31,762
Other payables, others	1,748	1,792
Other payables, related parties	1,530	1,281
Contract liabilities - current	3,567	8,511
Operating lease liabilities - current	4,201
Accrued and other liabilities	12,844	11,517
Total current liabilities	79,801	93,471
Long-term debt, bank and trade facilities	9,937
Long-term debt, related parties	9,096	14,142
Contract liabilities - non-current	3,230	1,801
Operating lease liabilities - non-current	18,154
Pension liabilities	17,671
Other long-term liabilities	1,710	2,739
Total liabilities	139,599	112,153
Commitments and contingencies (Note 14)
Stockholders’ equity and non-controlling interest
Common stock, authorized 36,000 shares, 21,419 and 16,587 shares outstanding as of December 31, 2019 and 2018, respectively, at a $0.001 par value	21	16
Additional paid-in capital	139,700	93,192
Accumulated other comprehensive loss	(3,939)	(192)
Accumulated deficit	(29,234)	(15,777)
Total stockholders' equity	106,548	77,239
Non-controlling interest		615
Total stockholders' equity and non-controlling interest	106,548	77,854
Total liabilities, stockholders’ equity and non-controlling interest	$ 246,147	$ 190,007