Investments (Tables)

6 Months Ended

Jun. 30, 2017

Investments, Debt and Equity Securities [Abstract]

Available-for-sale Securities

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

Investments Classified by Contractual Maturity Date

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