CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jul. 01, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 43,976	$ 68,904
Short-term investments	23,626	25,541
Trade and other accounts receivable, net of allowances of $0 at both July 1, 2023 and December 31, 2022	20,211	15,823
Inventories	46,293	30,003
Prepaid expenses and other current assets	1,914	1,898
Total current assets	136,020	142,169
Long-term investments	5,550	17,585
Restricted cash	785	786
Property, plant and equipment, net	7,288	3,658
Operating lease right-of-use assets	2,266	3,390
Intangible assets, net of amortization of $110,000 at July 1, 2023 and $42,000 at December 31, 2022	1,022	1,090
Deferred income taxes and other long-term assets	4,187	4,381
Total assets	157,118	173,059
Current liabilities:
Current operating lease liabilities	2,456	3,404
Accounts payable	10,421	11,610
Accrued payroll and related liabilities	3,416	3,087
Other accrued liabilities	1,376	5,430
Customer advances	20,248	2,444
Total current liabilities	37,917	25,975
Noncurrent liabilities:
Noncurrent operating lease liabilities	687	1,417
Customer advances	1,482	22,215
Other noncurrent liabilities	29	0
Total noncurrent liabilities	2,198	23,632
Stockholders' equity:
Common stock, $0.001 par value	26	26
Additional paid-in capital	208,672	206,355
Treasury stock, 5,087 shares at both July 1, 2023 and at December 31, 2022	(29,551)	(29,551)
Accumulated other comprehensive loss	(190)	(193)
Accumulated deficit	(61,954)	(53,185)
Total stockholders' equity	117,003	123,452
Total liabilities and stockholders' equity	$ 157,118	$ 173,059