CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Jan. 01, 2017
Current assets:
Cash and cash equivalents	$ 16,527	$ 14,870
Accounts receivable, net of allowances for doubtful accounts of $0	925	839
Inventories	3,559	2,017
Other current assets	997	1,123
Total current assets	22,008	18,849
Property and equipment, net	2,375	2,765
Other assets	253	230
TOTAL ASSETS	24,636	21,844
Current liabilities:
Revolving line of credit	6,000	6,000
Trade payables	1,437	2,018
Accrued liabilities	1,653	1,580
Current portion of capital software lease obligations	299	209
Total current liabilities	9,389	9,807
Long-term liabilities:
Capital software lease obligations, less current portion	355	0
Other long-term liabilities	14	49
Total liabilities	9,758	9,856
Commitments (Note 12)
Stockholders' equity:
Preferred stock, $0.001 par value; 10,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.001 par value; 200,000 and 100,000 shares authorized; 80,536 and 68,134 shares issued and outstanding as of December 31, 2017 and January 1, 2017, respectively	80	68
Additional paid-in capital	268,833	251,824
Accumulated deficit	(254,035)	(239,904)
Total stockholders' equity	14,878	11,988
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 24,636	$ 21,844