Name:	else_AvailableForSaleMarketableSecuritiesAccumulatedGrossUnrealizedGain
Namespace Prefix:	else_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of accumulated gross unrealized loss on investment in marketable securities classified as available-for-sale securities.

No definition available.

Name:	else_AvailableForSaleMarketableSecuritiesAccumulatedGrossUnrealizedLoss
Namespace Prefix:	else_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The amount of amortized cost of marketable securities classified as available-for-sale securities.

No definition available.

Name:	else_AvailableForSaleMarketableSecuritiesAmortizedCost
Namespace Prefix:	else_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of investment in marketable security.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.