Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Oct. 03, 2015	Jan. 03, 2015
Current assets:
Cash and cash equivalents	$ 18,034	$ 21,482
Short-term investments	29,021	29,598
Trade and other accounts receivable, net of allowances of $0 at both October 3, 2015 and at January 3, 2015	13,558	12,087
Inventories	15,659	19,212
Prepaid expenses and other current assets	1,728	1,727
Total current assets	78,000	84,106
Property, plant and equipment, net	11,934	12,826
Long-term investments	7,303	17,542
Restricted cash	1,780	1,780
Intangible assets, net of amortization of $5,061 at October 3, 2015 and $4,421 at January 3, 2015	3,326	3,966
Deferred income taxes and other long-term assets	1,540	55
Total assets	103,883	120,275
Current liabilities:
Accounts payable	4,233	4,640
Accrued payroll and related liabilities	3,610	3,977
Other accrued liabilities	3,806	8,277
Customer advances	4,413	2,551
Total current liabilities	16,062	19,445
Other long-term liabilities	2,509	2,200
Stockholders' equity:
Common stock, $0.001 par value	22	23
Additional paid-in capital	165,668	161,271
Treasury stock, 3,329 shares at October 3, 2015 and 1,426 shares at January 3, 2015	(20,937)	(9,989)
Accumulated other comprehensive income	493	619
Accumulated deficit	(59,934)	(53,294)
Total stockholders' equity	85,312	98,630
Total liabilities and stockholders' equity	$ 103,883	$ 120,275