Investments

The cost and carrying value of available-for-sale investments were as follows (in thousands):



June 30, 2017	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Carrying Value
Debt securities: corporate bonds	$	896	$	13	$	(12	)	$	897
Marketable equity securities	1,169		1,293		(5		)	2,457
Total	$	2,065	$	1,306	$	(17	)	$	3,354



December 31, 2016	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Carrying Value
Debt securities: corporate bonds	$	4,306	$	82	$	(6	)	$	4,382
Marketable equity securities	10,400		10,327		(38		)	20,689
Total	$	14,706	$	10,409	$	(44	)	$	25,071

The amortized cost and carrying value of investments in debt securities, by contractual maturity, are shown below. Actual maturity dates may differ from contractual maturity dates because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties (in thousands):



	June 30, 2017				December 31, 2016
	Amortized Cost		Carrying Value		Amortized Cost		Carrying Value
Due in one year or less	$	275	$	275	$	182	$	183
Due after one year through five years	621		622		4,124		4,199
Total	$	896	$	897	$	4,306	$	4,382

Debt Securities

The Company owns corporate bonds which were purchased based on the maturity and yield-to-maturity of the bond and an analysis of the fundamental characteristics of the issuer. At June 30, 2017 and December 31, 2016, there were no material unrealized losses on such bonds. There were no impairment losses recorded on debt securities during the three or six months ended June 30, 2017 and 2016.

Marketable Equity Securities

The Company’s investment in marketable equity securities at June 30, 2017 principally consisted of common stock of publicly traded small-capitalization companies in the U.S. and select foreign markets. At June 30, 2017, the Company reviewed its equity securities in an unrealized loss position and concluded certain securities were not other-than-temporarily impaired as the declines were not of sufficient duration and severity, and publicly-available financial information, collectively, did not indicate impairment. The primary cause of the losses on those securities was normal market volatility. No material impairment losses were recorded during the three or six months ended June 30, 2017 and 2016.