Fair Value Measurements (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2013

Dec. 31, 2012

Schedule of Assets Measured at Fair Value on a Recurring Basis

The Company’s assets that are measured at fair value on a recurring basis include the following (in thousands):



			Fair Value Measurements Using
	Total		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
At March 31, 2013:
Cash equivalents	$	25,397	$	25,397	$	—	$	—
At December 31, 2012:
Cash equivalents	$	61,272	$	61,272	$	—	$	—

The Company’s assets that are measured at fair value on a recurring basis include the following (in thousands):



			Fair Value Measurements Using
	Total		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
At December 31, 2012:
Cash equivalents	$	61,272	$	61,272	$	—	$	—
At December 31, 2011:
Cash equivalents	$	74,421	$	74,421	$	—	$	—
Investment in stock options related to equity securities	262		—		262		—

- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

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