Short-Term Borrowings and Long-Term Debt	6 Months Ended
Short-Term Borrowings and Long-Term Debt	Jun. 30, 2011
Short-Term Borrowings and Long-Term Debt [Abstract]
Short-Term Borrowings and Long-Term Debt	Note 6. Short-Term Borrowings and Long-Term Debt In May 2009, the Company entered into a loan and security agreement with Silicon Valley Bank (SVB) that provides for up to $4 million of equipment financing through October 2012. Borrowings under the loan agreement are collateralized by equipment purchased with the proceeds of the loan and bear interest at a fixed rate of approximately 9%. The loan agreement contains customary terms and conditions, including a financial covenant whereby the Company must maintain a minimum amount of liquidity measured at the end of each month where unrestricted cash, cash equivalents, and marketable securities is greater than $20 million plus outstanding debt due to SVB. The Company has at all times been in compliance with this covenant during the term of the agreement. At June 30, 2011, the current and long-term amounts due under the loan agreement were $1.3 million and $0.4 million, respectively. The carrying amount of the Company’s borrowings approximates fair value at June 30, 2011.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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