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Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
NET INCOME $ 11,101 $ 21,436 $ 13,491
Other comprehensive income (loss), net of tax:      
Reclassification adjustment for realized gains on marketable securities included in net income (1) [1] (543) (646) (630)
Reclassification adjustment for unrealized losses on marketable securities included in net income (2) [2] 440 516 1
Changes in fair value of marketable securities (3) [3] 2,269 (962) 871
COMPREHENSIVE INCOME $ 13,267 $ 20,344 $ 13,733
[1] Net of deferred income taxes of $(333), $(396), and $(385), respectively.
[2] Net of deferred income taxes of $269, $316, and $0, respectively.
[3] Net of deferred income taxes of $1,390, $(588), and $533, respectively.