Loans To And Investments In Associated Companies (Linkem) (Narrative) (Details) - Linkem [Member]	3 Months Ended
Mar. 31, 2017
Investments In Associated Companies [Line Items]
Percentage of ownership owned	42.00%
Stated interest rate on convertible notes	5.00%
Percentage of ownership upon conversion of note	53.00%
Excess investment amortization period, years	12 years

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant