Financial Instruments And Marketable Securities

12 Months Ended

Dec. 31, 2012

Financial Instruments And Marketable Securities [Abstract]

Financial Instruments and Marketable Securities

Note 2. Financial Instruments and Marketable Securities

We follow a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets and liabilities (Level 1) and the lowest priority to measurements involving significant unobservable inputs (Level 3). The three levels of the fair value hierarchy are as follows:

• Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities.

• Level 2 inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, included in Level 1 that are observable either directly or indirectly.

• Level 3 inputs are unobservable for the asset or liability, but are based upon our own assumptions used to measure assets and liabilities at fair value.

The level in the fair value hierarchy within which a fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety.

The following table presents the placement in the fair value hierarchy of assets that are measured at fair value on a recurring basis:

December 31, 2012:	Total		Level 1	Level 2	Level 3
Common stock	$	354	354	—	—
Total available-for-sale securities	$	354	354	—	—

December 31, 2011:	Total		Level 1	Level 2	Level 3
Common stock	$	320	320	—	—
Government and agency securities	26,845		26,845	—	—
Total available-for-sale securities	$	27,165	27,165	—	—

There were no transfers between levels during 2012 and 2011.

As of December 31, 2012, our financial assets that are measured at fair value on a recurring basis include only common stock. 

Marketable securities, all treated as available-for-sale securities, consist of the following:

December 31, 2012:	Amortized cost		Gross unrealized gains	Gross unrealized losses	Fair value
Common stock	$	197	157	—	354
Total available-for-sale securities	$	197	157	—	354

December 31, 2011:	Amortized cost		Gross unrealized gains	Gross unrealized losses		Fair value
Common stock	$	197	123	—		320
Government and agency securities	26,851		—	(6	)	26,845
Total available-for-sale securities	$	27,048	123	(6	)	27,165

The unrealized gains and losses recorded in accumulated other comprehensive income and the realized gains and losses recorded in earnings were immaterial during the three years reported in these consolidated financial statements.

Future maturities of our available-for-sale securities consist of the following:

	Less than 12 months			Greater than 12 months
December 31, 2012:	Amortized cost		Fair value	Amortized cost	Fair value
Common stock	$	197	354	—	—
Total available-for-sale securities	$	197	354	—	—