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Investments (Tables)

12 Months Ended

Dec. 31, 2012

Investments Classified as Available-For-Sale

	December 31, 2012								December 31, 2011
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Auction rate securities	$	1,175	$	409	$	-	$	1,584	$	3,373	$	832	$	-	$	4,205
Corporate debt securities		31,340		21		-		31,361		-		-		-		-
Total	$	32,515	$	430	$	-	$	32,945	$	3,373	$	832	$	-	$	4,205

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References

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+ Details