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Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Statement of Comprehensive Income [Abstract]        
Net income $ 2,614 $ 3,436 $ 6,810 $ 7,747
Other comprehensive income, net of taxes:        
Unrealized gain (loss) on marketable securities 31 (13) (10) 10
Total other comprehensive income (loss) 31 (13) (10) 10
Comprehensive income $ 2,645 $ 3,423 $ 6,800 $ 7,757