CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 30, 2019	Dec. 29, 2018
Current assets:
Cash and cash equivalents	$ 23,537	$ 18,715
Short-term investments	11,764	16,076
Trade and other accounts receivable, net of allowances of $0 at both March 30, 2019 and at December 29, 2018	19,996	27,717
Inventories	30,329	30,597
Prepaid expenses and other current assets	2,173	2,528
Total current assets	87,799	95,633
Long-term investments	5,394	4,372
Restricted cash	1,254	1,169
Property, plant and equipment, net	10,550	11,198
Operating lease right-of-use-assets	11,076
Intangible assets, net of accumulated amortization of $7,652 at March 30, 2019 and $7,498 at December 29, 2018	735	889
Deferred income taxes and other long-term assets	8,485	8,809
Total assets	125,293	122,070
Current liabilities:
Current operating lease liabilities	2,569
Accounts payable	4,867	6,053
Accrued payroll and related liabilities	3,457	4,689
Other accrued liabilities	4,327	4,952
Customer advances	10,335	14,314
Total current liabilities	25,555	30,008
Noncurrent liabilities:
Noncurrent operating lease liabilities	10,491
Other long-term liabilities	160	2,438
Total noncurrent liabilities	10,651	2,438
Stockholders' equity:
Common stock, $0.001 par value	23	23
Additional paid-in capital	184,953	183,204
Treasury stock, 4,965 shares at both March 30, 2019 and December 29, 2018	(29,047)	(29,047)
Accumulated other comprehensive income	484	378
Accumulated deficit	(67,326)	(64,934)
Total stockholders' equity	89,087	89,624
Total liabilities and stockholders' equity	$ 125,293	$ 122,070