Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.4)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Name:	us-gaap_TradingSecurities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

FAIR VALUE DISCLOSURES (Details) - Fair value on a recurring basis - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Assets:
Equity securities	$ 234	$ 211
Investments measured at net asset value	26,955	22,815
Quoted prices in active markets for identical assets (Level 1)
Assets:
Equity securities	234	211
Significant other observable inputs (Level 2)
Assets:
Equity securities
Investments measured at net asset value
Significant unobservable inputs (Level 3)
Assets:
Equity securities