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Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified | Jun. 29, 2013 | Dec. 29, 2012
--- | --- | ---
Current assets: |  |  |
Cash and cash equivalents | $ 13,505 | $ 11,901 | [1]
Accounts receivable, net of allowance for doubtful accounts of $206 at June 29, 2013 and $146 at December 29, 2012 | 6,148 | 5,480 | [1]
Inventories | 8,940 | 8,035 | [1]
Prepaid expenses and other current assets | 1,095 | 1,129 | [1]
Current assets of discontinued operations | 0 | 510 | [1]
Total current assets | 29,688 | 27,055 | [1]
Property and equipment, net | 432 | 483 | [1]
Intangible assets, net | 437 | 554 | [1]
Goodwill | 533 | 533 | [1]
Other long-term assets | 280 | 287 | [1]
Total assets | 31,370 | 28,912 | [1]
Current liabilities: |  |  |
Accounts payable | 2,573 | 2,105 | [1]
Accrued compensation | 1,533 | 1,563 | [1]
Accrued expenses | 1,102 | 1,242 | [1]
Accrued warranty | 457 | 453 | [1]
Deferred revenue | 1,018 | 1,004 | [1]
Total current liabilities | 6,683 | 6,367 | [1]
Long-term liabilities: |  |  |
Other long-term liabilities | 461 | 640 | [1]
Total liabilities | 7,144 | 7,007 | [1]
Stockholders’ equity: |  |  |
Convertible preferred stock, $0.01 par value: Authorized: 2,000,000 shares; Issued and outstanding: 0 and 500,000 shares at June 29, 2013 and at December 29, 2012, respectively | 0 | 5 | [1]
Common stock, $0.01 par value: Authorized: 30,000,000 shares; Issued and outstanding: 9,729,333 and 8,452,971 shares at June 29, 2013 and at December 29, 2012, respectively | 102 | 94 | [1]
Additional paid-in capital | 39,987 | 38,958 | [1]
Accumulated deficit | (15,863) | (17,152) | [1]
Total stockholders’ equity | 24,226 | 21,905 | [1]
Total liabilities and stockholders’ equity | $ 31,370 | $ 28,912 | [1]
[1] | Derived from the audited consolidated financial statements included in the annual report filed on Form 10-K with the SEC for the year ended December 29, 2012.

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