Marketable securities

12 Months Ended

Dec. 31, 2013

Marketable securities

Marketable securities

Note 3.  Marketable securities

There were no available-for-sale securities as of December 31, 2013.

Investments in available-for-sale securities at December 31, 2012 were:

	Cost		Market value		Unrealized (loss)
Certificates of deposit	$	4,422	$	4,411	$	(11	)
Total Marketable securities	$	4,422	$	4,411	$	(11	)

The cost and market value of our investments at December 31, 2012 by contractual maturity were:

			Estimated
	Cost		Fair Value
Due in one year or less	$	4,422	$	4,411

Investments in certificates of deposit are in brokered certificates of deposit at numerous banking institutions in the USA to take advantage of the FDIC insurance limits.