Organization and Summary of Significant Accounting Policies (Inventories) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2015
Inventory Disclosure [Abstract]
Inventory, LIFO reserve, effect on income, net	$ 4,200
Inventory, Gross [Abstract]
Raw materials	29,980	[1]	$ 35,499
Work-in-process	18,537	[1]	22,804
Finished goods	28,289	[1]	33,521
Total Inventory	$ 76,806	[1]	$ 91,824

[1] Inventory amounts have been adjusted for the 2015 conversion from LIFO to FIFO as discussed above.