CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2016	Jan. 02, 2015	Jan. 03, 2014
Cash flows from operating activities:
Net income (loss)	$ (6,533)	$ (8,392)	$ 398
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation of property and equipment	2,196	2,078	1,711
Amortization of intangibles	205	382	440
Deferred income taxes	473	(841)	104
Fair value adjustment of warrant	0	0	(27)
Change in net pension liability	190	194	162
Loss on disposal of property and equipment	0	0	200
Stock-based compensation expense	3,304	4,663	4,489
Accretion of asset retirement obligation	0	3	10
Provision for sales returns and bad debts	345	182	263
Changes in working capital:
Accounts receivable trade, net	(4,952)	(934)	(2,938)
Inventories, net	327	(3,943)	(1,603)
Prepayments, deposits and other current assets	856	(1,062)	(1,063)
Accounts payable	14	972	367
Other current liabilities	1,413	(1,253)	842
Net cash provided by (used in) by operating activities	(2,162)	(7,951)	3,355
Cash flows from investing activities:
Acquisition of property and equipment	(2,045)	(4,054)	(3,448)
Sale of property and equipment	2	0	0
Net cash used in investing activities	(2,043)	(4,054)	(3,448)
Cash flows from financing activities:
Repayment of capital lease lines of credit	(391)	(490)	(841)
Proceeds from the exercise of stock options	2,168	3,022	3,286
Proceeds from vested restricted stock	2	0	0
Proceeds from the exercise of warrants	2,800	0	0
Net cash provided by financing activities	4,579	2,532	2,445
Effect of exchange rate changes on cash and cash equivalents	15	(468)	(1,073)
Increase (decrease) in cash and cash equivalents	389	(9,941)	1,279
Cash and cash equivalents, at beginning of year	13,013	22,954	21,675
Cash and cash equivalents, at end of year	$ 13,402	$ 13,013	$ 22,954