Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Jan. 02, 2016
Current assets:
Cash and cash equivalents	$ 23,747	$ 9,995
Accounts receivable, net of allowance for doubtful accounts of $230 as of December 31, 2016 and $140 as of January 2, 2016	10,025	9,282
Inventories	11,643	11,106
Prepaid expenses and other current assets	450	386
Total current assets	45,865	30,769
Property and equipment, net	1,534	1,104
Intangible assets, net	132	268
Goodwill	533	533
Deferred income taxes		8,985
Other long-term assets	80	164
Total assets	48,144	41,823
Current liabilities:
Accounts payable	1,994	2,223
Accrued compensation	2,346	1,572
Accrued expenses	2,135	1,722
Accrued warranty	603	603
Deferred revenue	1,383	1,311
Total current liabilities	8,461	7,431
Long-term liabilities:
Other long-term liabilities	523	704
Total liabilities	8,984	8,135
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 11,304,736 and 10,009,408 shares as of December 31, 2016 and January 2, 2016, respectively	124	111
Additional paid-in capital	55,158	37,986
Accumulated deficit	(16,122)	(4,409)
Total stockholders’ equity	39,160	33,688
Total liabilities and stockholders’ equity	$ 48,144	$ 41,823