Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 29, 2019	Dec. 29, 2018	[1]
Current assets:
Cash and cash equivalents	$ 15,633	$ 21,194
Accounts receivable, net of allowance for doubtful accounts of $205 as of June 29, 2019 and $213 as of December 29, 2018	8,083	9,083
Inventories	8,974	8,794
Prepaid expenses and other current assets	593	547
Total current assets	33,283	39,618
Property and equipment, net	991	1,220
Intangible assets, net	92	100
Goodwill	533	533
Operating lease right-of-use assets, net	3,390
Other long-term assets	196	201
Total assets	38,485	41,672
Current liabilities:
Accounts payable	2,196	2,516
Accrued compensation	2,150	2,962
Accrued expenses	2,055	2,763
Accrued warranty	490	622
Deferred revenue	1,514	1,639
Operating lease liabilities	1,363
Total current liabilities	9,768	10,502
Long-term liabilities:
Accrued warranty	86	238
Deferred revenue	469	586
Operating lease liabilities	2,516
Other long-term liabilities	17	385
Total liabilities	12,856	11,711
Commitments and contingencies (Note 6)
Stockholders’ equity:
Preferred stock, $0.01 par value, 2,000,000 shares authorized, no shares issued and outstanding
Common stock, $0.01 par value: Authorized: 30,000,000 shares; Issued and outstanding 13,746,959 and 13,602,052 shares as of June 29, 2019 and December 29, 2018, respectively	147	145
Additional paid-in capital	72,685	71,548
Accumulated other comprehensive income	66	70
Accumulated deficit	(47,269)	(41,802)
Total stockholders’ equity	25,629	29,961
Total liabilities and stockholders’ equity	$ 38,485	$ 41,672

[1] Derived from the audited consolidated financial statements included in the Annual Report on Form 10-K filed with the SEC for the year ended December 29, 2018.