CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Apr. 01, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 193,067	$ 199,706
Accounts receivable trade, net of allowance for credit losses of $77 and $43, respectively	47,074	43,531
Inventories, net	18,450	17,274
Prepayments, deposits and other current assets	15,311	10,900
Total current assets	273,902	271,411
Property, plant and equipment, net	39,645	35,912
Finance lease right-of-use assets, net	461	506
Operating lease right-of-use assets, net	31,030	31,310
Intangible assets, net	203	218
Goodwill	1,786	1,786
Deferred income taxes	3,333	3,813
Other assets	817	822
Total assets	351,177	345,778
Current liabilities:
Accounts payable	13,421	8,699
Obligations under finance leases	151	127
Obligations under operating leases	3,608	3,283
Allowance for sales returns	4,566	4,816
Other current liabilities	19,436	31,877
Total current liabilities	41,182	48,802
Obligations under finance leases	338	382
Obligations under operating leases	27,762	28,269
Deferred income taxes	811	811
Asset retirement obligations	186	198
Pension liability	4,581	8,758
Total liabilities	74,860	87,220
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.01 par value; 60,000 shares authorized: 47,810 and 47,716 shares issued and outstanding at April 1, 2022 and December 31, 2021, respectively	478	477
Additional paid-in capital	378,690	373,519
Accumulated other comprehensive loss	(1,063)	(4,048)
Accumulated deficit	(101,788)	(111,390)
Total stockholders’ equity	276,317	258,558
Total liabilities and stockholders’ equity	$ 351,177	$ 345,778