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Available-for-sale Securities | 6 Months Ended
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Jun. 30, 2013
Available-for-sale Securities | Note 3. Available-for-sale Securities As of June 30, 2013 and December 31, 2012 our investments were comprised of liquid money market funds with no maturity dates. Accordingly, there were no available-for-sale securities with unrealized gains or unrealized losses. Gross realized gains from the sale or maturity of available-for-sale investments were zero during each of the three and six month periods ended June 30, 2013 and 2012. The Company did not record any gross realized losses from the sale or maturity of available-for-sale investments during the three and six months ended June 30, 2013, and 2012.

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- Definition Available-for-sale securities. + References No definition available. + Details
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Namespace Prefix: | cers_
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