Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
NET INCOME		$ 3,451	$ 5,795	$ 10,378	$ 18,203
Other comprehensive income, net of tax:
Reclassification adjustment for realized gains on marketable securities included in net income (1)	[1]	(594)		(543)
Reclassification adjustment for unrealized losses on marketable securities included in net income, net of income taxes (2)	[2]	109	359	440	359
Changes in fair value of marketable securities (3)	[3]	(376)	(1,537)	1,009	(1,380)
COMPREHENSIVE INCOME		$ 2,590	$ 4,617	$ 11,284	$ 17,182

[1] Net of deferred income taxes of $(364), $0, $(333), and $0, respectively.

[2] Net of deferred income taxes of $67, $220, $269, and $220, respectively.

[3] Net of deferred income taxes of $(230), $(940), $618, and $(844), respectively.