CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 30, 2022
Current assets:
Cash and cash equivalents	$ 89,968	$ 86,480
Investments available for sale	113,879	125,159
Accounts receivable trade, net of allowance for credit losses of $43 and $20, respectively	63,494	62,447
Inventories, net	27,808	24,161
Prepayments, deposits and other current assets	17,722	13,476
Total current assets	312,871	311,723
Investments available for sale	13,445	13,902
Property, plant and equipment, net	53,453	50,921
Finance lease right-of-use assets, net	303	342
Operating lease right-of-use assets, net	31,182	30,270
Intangible assets, net	165	173
Goodwill	1,786	1,786
Deferred income taxes	4,744	4,824
Other assets	956	957
Total assets	418,905	414,898
Current liabilities:
Accounts payable	9,102	11,576
Obligations under finance leases	171	169
Obligations under operating leases	3,538	3,524
Allowance for sales returns	5,303	5,706
Other current liabilities	28,949	30,741
Total current liabilities	47,063	51,716
Obligations under finance leases	167	210
Obligations under operating leases	28,030	27,136
Deferred income taxes	1,369	1,489
Asset retirement obligations	218	220
Pension liability	3,134	1,935
Total liabilities	79,981	82,706
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.01 par value; 60,000 shares authorized: 48,331 and 48,212 shares issued and outstanding at March 31, 2023 and December 30, 2022, respectively	483	482
Additional paid-in capital	409,303	404,189
Accumulated other comprehensive gain (loss)	(937)	156
Accumulated deficit	(69,925)	(72,635)
Total stockholders’ equity	338,924	332,192
Total liabilities and stockholders’ equity	$ 418,905	$ 414,898