Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013
Current assets:
Cash and cash equivalents	$ 13,303	$ 13,444
Accounts receivable, net of allowance for doubtful accounts of $223 in 2014 and $207 in 2013	8,337	7,345
Inventories	9,119	10,605
Prepaid expenses and other current assets	510	576
Deferred income taxes - current	1,625
Total current assets	32,894	31,970
Property and equipment, net	735	543
Other intangible assets, net	284	328
Goodwill	533	533
Deferred income taxes - long term	7,151
Other long-term assets	221	303
Total assets	41,818	33,677
Current liabilities:
Accounts payable	1,758	2,278
Accrued compensation	1,863	1,891
Accrued expenses	1,770	1,592
Accrued warranty	469	468
Deferred revenue	1,179	1,133
Total current liabilities	7,039	7,362
Long-term liabilities:
Other long-term liabilities	1,043	461
Total liabilities	8,082	7,823
Commitments and contingencies (Note 9)
Stockholders’ equity:
Convertible preferred stock, $0.01 par value; 2,000,000 shares authorized; none issued
Common stock, $0.01 par value: Authorized: 30,000,000 shares; Issued and outstanding: 9,786,695 shares in 2014 and 9,899,483 shares in 2013	108	104
Additional paid-in capital	38,511	40,671
Accumulated deficit	(4,883)	(14,921)
Total stockholders’ equity	33,736	25,854
Total liabilities and stockholders’ equity	$ 41,818	$ 33,677