Marketable Securities

9 Months Ended

Sep. 30, 2014

Investments, Debt and Equity Securities [Abstract]

Marketable Securities

Marketable Securities

The Company has classified its marketable securities as available-for-sale securities. These securities are carried at estimated fair value with unrealized holding gains and losses included in accumulated other comprehensive income/loss in stockholders' equity until realized. Gains and losses on marketable security transactions are reported on the specific-identification method. Dividend and interest income are recognized when earned.

The amortized cost, gross unrealized holding gains, gross unrealized holding losses, and fair value for available-for-sale securities by major security type and class of security at September 30, 2014 and December 31, 2013 were as follows:

			Amortized cost		Gross unrealized holding gains		Gross unrealized holding losses			Estimated fair value
September 30, 2014
	Available-for-sale securities:
		Corporate bonds and notes	$	19,242	$	126	$	(39	)	$	19,329
		Municipal bonds	6,078		44		—			6,122
	Total available-for-sale securities		$	25,320	$	170	$	(39	)	$	25,451

			Amortized cost		Gross unrealized holding gains		Gross unrealized holding losses			Estimated fair value
December 31, 2013
	Available-for-sale securities:
		Corporate bonds and notes	$	18,832	$	68	$	(43	)	$	18,857
		Municipal bonds	6,658		22		(11		)	6,669
	Total available-for-sale securities		$	25,490	$	90	$	(54	)	$	25,526

Maturities of marketable securities classified as available-for-sale securities were as follows at September 30, 2014:

			Amortized cost		Estimated fair value
September 30, 2014
		Due within one year	$	5,783	$	5,785
		Due after one year through five years	18,852		18,970
		Due after five years through ten years	685		696
	Total available-for-sale securities		$	25,320	$	25,451