Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0000729580 (http://www.sec.gov/CIK)

INVENTORIES [Abstract]	Period [Axis]
	2016-01-01 - 2016-12-31
INVENTORIES [Abstract]
Components of inventories	The components of inventories are as follows:     December 31,       2016     2015   Raw materials   $ 43,376     $ 42,036   Work in progress     18,008       16,908   Finished goods     37,487       39,566   Inventories   $ 98,871     $ 98,510