Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 45,505	$ 45,219
Restricted cash	6,884	9,200
Accounts receivable - trade, net of allowance for doubtful accounts of $18,170 as of September 30, 2021 and $4,000 as of December 31, 2020	84,730	97,253
Other receivables	12,477	9,165
Inventories	58,270	39,572
Contract assets	3,466	6,182
Prepaid expenses and other current assets	8,906	5,332
Total current assets	220,238	211,923
Property, plant and equipment, net	9,256	7,146
Right-of-use assets from operating leases	12,932	18,483
Goodwill	6,145	3,977
Intangible assets, net	5,409	3,377
Deferred tax assets	1,156	1,405
Other assets	8,826	5,919
Total assets	263,962	252,230
Current liabilities:
Accounts payable - trade	67,953	49,250
Short-term debt - bank, trade facilities and secured borrowings		13,787
Contract liabilities	4,585	4,400
Operating lease liabilities	4,118	4,494
Accrued and other liabilities	21,802	16,707
Total current liabilities	98,458	88,638
Long-term debt - related party		29,754
Contract liabilities - non-current	2,951	2,471
Operating lease liabilities - non-current	12,694	15,959
Pension liabilities	18,685	20,052
Other long-term liabilities	3,426	1,777
Total liabilities	136,214	158,651
Commitments and contingencies (Note 14)
Stockholders’ equity:
Common stock, 36,000 shares authorized, 27,207 and 21,958 shares issued and outstanding as of September 30, 2021 and December 31, 2020, respectively, at $0.001 par value	27	22
Additional paid-in capital	218,596	147,997
Accumulated other comprehensive loss	(6,159)	(2,124)
Accumulated deficit	(84,716)	(52,316)
Total stockholders’ equity	127,748	93,579
Total liabilities and stockholders’ equity	$ 263,962	$ 252,230