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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 28, 2013 | Dec. 29, 2012 | Dec. 31, 2011
Operating activities: |  |  |
Net income | $ 2,231 | $ 1,438 | $ 2,610
Less income from discontinued operations |  | 1,608 | 469
Income (loss) from continuing operations | 2,231 | (170) | 2,141
Adjustments to reconcile net income (loss) from continuing operations to net cash provided by (used in) operating activities: |  |  |
Depreciation and amortization | 490 | 427 | 410
Change in fair value of earn-out liability | 355 | 215 | 280
Stock-based compensation cost recognized | 689 | 388 | 478
Tax effect of stock compensation expense |  |  | 2
Provision for doubtful accounts | 61 | 33 | (12)
Changes in operating assets and liabilities, net of assets and liabilities acquired: |  |  |
Accounts receivable | (1,926) | 38 | (82)
Inventories | (2,514) | (1,376) | (1,027)
Prepaid expenses and other current assets | 553 | (665) | (75)
Other long-term assets | (16) | (88) | 7
Accounts payable | 173 | 525 | 66
Accrued compensation | 328 | 383 | (209)
Accrued expenses | 171 | (756) | 285
Accrued warranty | 15 | (103) | (51)
Deferred revenue | 129 | (10) | 12
Other long-term liabilities | 28 | 21 | 26
Net cash provided (used in) by operating activities | 767 | (1,138) | 2,251
Investing activities: |  |  |
Acquisition of property and equipment | (380) | (394) | (203)
Cash paid in business combination |  |  | (75)
Payment on earn-out liability | (383) | (328) |
Net cash used in investing activities | (763) | (722) | (278)
Cash flows from financing activities: |  |  |
Proceeds from stock option exercises | 1,495 | 445 | 321
Repurchase of common stock | (426) | (2,835) | (648)
Payment of legal costs in connection with tender offer | (40) |  |
Net cash provided by (used in) financing activities | 1,029 | (2,390) | (327)
Net cash provided by operating activities from discontinued operations |  | 695 | 797
Net cash provided by investing activities from discontinued operations | 510 | 4,632 |
Effect of foreign exchange rate changes from discontinued operations |  | 35 | (1)
Net cash provided by discontinued operations | 510 | 5,362 | 796
Net increase in cash and cash equivalents | 1,543 | 1,112 | 2,442
Cash and cash equivalents, beginning of year | 11,901 | 10,789 | 8,347
Cash and cash equivalents, end of year | 13,444 | 11,901 | 10,789
Cash paid (received) during the year for: |  |  |
Income taxes | (536) | (145) | 522
Interest paid |  |  | 1
Supplemental disclosure of non-cash activities: |  |  |
Contingent consideration – earn-out liability |  |  | 105
Conversion of preferred stock to common stock | $ 5 |  |

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