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The Company and Summary of Significant Accounting Policies (Details)
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3 Months Ended | 9 Months Ended | 9 Months Ended | 12 Months Ended | 0 Months Ended | 9 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Sep. 30, 2012
USD ($)
derivative
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Sep. 30, 2011
USD ($)
|
Sep. 30, 2012
USD ($)
derivative
|
Sep. 30, 2011
USD ($)
|
Dec. 31, 2011
USD ($)
derivative
|
Dec. 31, 2010
USD ($)
|
Sep. 30, 2012
Scanner appliances
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Sep. 30, 2012
Forward contracts
EUR (€)
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Dec. 31, 2011
Forward contracts
EUR (€)
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Dec. 31, 2011
Customer concentration risk
Accounts receivable
customer
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Sep. 30, 2012
Customer concentration risk
Accounts receivable
customer
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Oct. 03, 2012
Preferred stock
USD ($)
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Sep. 30, 2012
Minimum [Member]
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Sep. 30, 2012
Maximum [Member]
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Sep. 30, 2012
Software and software development costs
USD ($)
|
Dec. 31, 2011
Software and software development costs
USD ($)
|
Sep. 30, 2012
Fair Value, Inputs, Level 2
USD ($)
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| The company and qualitative disclosure about market risk [Line Items] | |||||||||||||||||
| Conversion of stock, amount converted | $ 63,900,000 | ||||||||||||||||
| Concentration risk, number of customers | 1 | 0 | |||||||||||||||
| Concentration risk, percentage | 13.00% | ||||||||||||||||
| Cash | 25,804,000 | 21,865,000 | 25,804,000 | 21,865,000 | 24,548,000 | 15,010,000 | |||||||||||
| Deferred offering costs | 2,533,000 | 2,533,000 | |||||||||||||||
| Property, plant and equipment, useful Llfe | 3 years | 3 years | 5 years | ||||||||||||||
| Finite-lived intangible asset, useful life | 3 years | 14 years | |||||||||||||||
| Capitalized development costs | 3,420,000 | 3,420,000 | 251,000 | 251,000 | |||||||||||||
| Derivative, number of instruments held | 1 | 1 | 1 | ||||||||||||||
| Derivative, notional amount | 7,600,000 | 3,680,000 | |||||||||||||||
| Foreign currency contract, asset, fair value disclosure | 0 | 0 | 0 | 0 | |||||||||||||
| Derivative instruments not designated as hedging instruments, loss | (362,000) | (91,000) | |||||||||||||||
| Foreign currency transaction gain, before tax | 415,000 | 49,000 | |||||||||||||||
| Advertising expense | 830,000 | 1,021,000 | 2,983,000 | 2,933,000 | |||||||||||||
| Foreign currency transaction gain (loss), before tax | $ 53,000 | $ (418,000) | $ (42,000) | $ 97,000 | |||||||||||||
| Stockholders' equity, reverse stock split | one-for-ten reverse stock split | ||||||||||||||||
| Stockholders' equity note, stock split, conversion ratio | 0.1 | ||||||||||||||||