Consolidated Statements of Operations - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Revenues $ 234,630 $ 302,748 $ 435,499
Revenues – related parties 64,981 39,090 9,420
Cost of goods sold 233,063 213,172 289,828
Cost of goods sold – related parties 6,662 58,822 50,635
Distribution 2,435 3,536 3,899
Distribution - related parties 405 335 392
Gross profit 57,046 65,973 100,165
Selling, general, and administrative expenses      
Compensation expense 4,955 4,268 3,647
Other expense 2,164 2,195 2,421
Related party expense 215 214 399
Research and development expenses 2,741 3,168 3,444
Operating earnings 10,075 9,845 9,911
Income from operations 46,971 56,128 90,254
Interest and dividend income 5,106 6,877 5,875
Interest expense (134) (25) (24)
Gain on marketable securities 107 4,335 1,646
Other income (expense) (181) 30 (400)
Other income 4,898 11,217 7,097
Income before income taxes 51,869 67,345 97,351
Provision for income taxes 5,448 14,145 23,317
Net income $ 46,421 $ 53,200 $ 74,034
Earnings per common share:      
Basic (in Dollars per share) $ 1.06 $ 1.22 $ 1.71
Diluted (in Dollars per share) $ 1.06 $ 1.22 $ 1.71
Weighted average shares outstanding:      
Basic (in Shares) 43,432,149 43,357,602 43,237,513
Diluted (in Shares) 43,445,730 43,392,011 43,276,931
Net income $ 46,421 $ 53,200 $ 74,034
Other comprehensive income (loss) – unrealized gains (losses) on marketable securities, net of tax benefit of ($1,314) in 2015 and ($1,980) in 2014, and net of tax of $3,018 in 2013 (2,204) (3,177) 4,839
Comprehensive income $ 44,217 $ 50,023 $ 78,873