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Condensed Consolidated Balance Sheets (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
ASSETS    
Cash and cash equivalents $ 13,856 $ 10,789 [1]
Accounts receivable, net of allowance for doubtful accounts of $138 at Mar. 31, 2012 and $162 at Dec. 31, 2011 5,142 5,551 [1]
Inventories, net 7,038 6,659 [1]
Prepaid expenses and other current assets 1,172 464 [1]
Current assets of discontinued operations 1,398 6,043 [1]
Total current assets 28,606 29,506 [1]
Property and equipment, net 378 325 [1]
Other intangible assets, net 700 745 [1]
Goodwill 533 533 [1]
Other long-term assets 183 199 [1]
Restricted cash related to discontinued operations 510 0 [1]
Non-current assets of discontinued operations 9 841 [1]
Total assets 30,919 32,149 [1]
LIABILITIES AND STOCKHOLDERS' EQUITY    
Accounts payable 1,544 1,580 [1]
Accrued compensation 1,487 1,180 [1]
Accrued expenses 1,203 1,920 [1]
Accrued warranty 539 556 [1]
Deferred revenue 907 1,014 [1]
Current liabilities of discontinued operations 259 2,663 [1]
Total current liabilities 5,939 8,913 [1]
Long-term liabilities:    
Other long-term liabilities 719 810 [1]
Total liabilities 6,658 9,723 [1]
Stockholders' equity:    
Convertible preferred stock, $0.01 par value: Authorized: 2,000,000 shares; Issued and outstanding: 500,000 shares at Mar. 31, 2012 and at Dec. 31, 2011 5 5 [1]
Common stock, $0.01 par value: Authorized: 30,000,000 shares; Issued and outstanding: 8,959,097 and 8,917,824 shares at Mar. 31, 2012 and Dec. 31, 2011, respectively 93 92 [1]
Additional paid-in capital 42,414 42,032 [1]
Accumulated other comprehensive loss 0 (35) [1]
Treasury stock, at cost (1,266) (1,078) [1]
Accumulated deficit (16,985) (18,590) [1]
Total stockholders' equity 24,261 22,426 [1]
Total liabilities and stockholders' equity $ 30,919 $ 32,149 [1]
[1] Derived from the consolidated audited financial statements included in our annual report filed on Form 10-K with the SEC for the year ended December 31, 2011.