Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015
Net cash provided by operating activities		$ 5,938,000	$ 3,954,000
Investing activities
Purchases of marketable securities		(46,311,000)	(26,340,000)
Proceeds from maturity of marketable securities		34,265,000	14,157,000
Proceeds from sales of marketable securities		13,072,000	11,492,000
Purchases of property and equipment		(1,505,000)	(1,629,000)
Acquisition of initially consolidated subsidiary (1)	[1]	(494,000)
Decrease in restricted deposits		97,000	455,000
Net cash (used in) investing activities		(876,000)	(1,865,000)
Financial activities
Purchase of treasury stock		(5,950,000)	(11,194,000)
Repayment of short term bank loan		(168,000)
Issuance of treasury stock upon exercise of stock options		1,196,000	1,138,000
Net cash used in financing activities		(4,922,000)	(10,056,000)
Increase (decrease) in cash and cash equivalents		140,000	(7,967,000)
Erosion- due to exchange rate differences		64,000	(85,000)
Cash and cash equivalents at the beginning of the period		13,704,000	20,544,000
Cash and cash equivalents at the end of the period		$ 13,908,000	$ 12,492,000

[1] During the third quarter of 2016, the Company completed the acquisition of a private company in Asia which the Company had previously invested in and acquired the remaining 86% of the equity of that company, bringing its holding to 100%. The net fair value of the assets acquired and the liabilities assumed, on the date of acquisition, was as follows: