COMMON SHARES (Details Narrative) $ / shares in Units, ₪ in Thousands, $ in Thousands							9 Months Ended
	Aug. 01, 2018 ILS (₪) shares	Jul. 13, 2018 USD ($)	Jan. 31, 2018 shares	Jan. 30, 2018 USD ($)	Jan. 11, 2018 USD ($)	Jan. 03, 2018 USD ($) $ / shares shares	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Nov. 01, 2018 USD ($)	Jun. 27, 2018 USD ($)
Repayments of debt							$ 2,349	$ 1,200
JSJ Investments, Inc [Member] \| 12% Convertible Promissory Note dated July 13, 2019 [Member]
Principal amount		$ 83
Debt original discount		$ 3
Maturity date		Jul. 13, 2019
Percentage of prepaid payment on remaining principal plus accrued interest		140.00%
Percentage of conversion price based on market price		35.00%
Short term borrowing		$ 80								$ 0
Percentage of debt default payment on outstanding principal plus accrued interest		18.00%
JSJ Investments, Inc [Member] \| Maximum [Member] \| 12% Convertible Promissory Note dated July 13, 2019 [Member]
Percentage of prepaid payment on remaining principal plus accrued interest		130.00%
JSJ Investments, Inc [Member] \| Minimum [Member] \| 12% Convertible Promissory Note dated July 13, 2019 [Member]
Percentage of prepaid payment on remaining principal plus accrued interest		115.00%
Mai Pai Investments Limited [Member] \| Non-Interest Bearing Convertible Note [Member]
Principal amount									$ 5
Warrant term	3 years
Maturity date	Nov. 01, 2018
Number of shares called by warrant \| shares	400,000
Number of shares issued \| shares	400,000
Mai Pai Investments Limited [Member] \| Non-Interest Bearing Convertible Note [Member] \| ILS
Principal amount \| ₪	₪ 180
Convertible Promissory Note [Member] \| Crown Bridge Partners, LLC [Member]
Principal amount						$ 339
Debt original discount						$ 30
Maturity date						Jan. 03, 2019
Interest rate						10.00%
Increase interest rate						12.00%
Convertible Promissory Note [Member] \| Crown Bridge Partners, LLC [Member] \| Warrant [Member] \| Securities Purchase Agreement [Member]
Warrant term						5 years
Number of shares called by warrant \| shares						56,500
Exercise price of warrants (in dollars per share) \| $ / shares						$ 3.15
Convertible Promissory Note [Member] \| Crown Bridge Partners, LLC [Member] \| Warrant [Member] \| Securities Purchase Agreement [Member] \| Debt First Tranche [Member]
Principal amount					$ 113
Debt original discount					10
Repayments of debt					$ 103
Convertible Promissory Note [Member] \| Crown Bridge Partners, LLC [Member] \| Maximum [Member]
Percentage of prepaid payment on outstanding principal plus accrued interest						135.00%
Convertible Promissory Note [Member] \| Crown Bridge Partners, LLC [Member] \| Minimum [Member]
Percentage of prepaid payment on outstanding principal plus accrued interest						110.00%
Convertible Promissory Note [Member] \| Labrys Fund, LP [Member]
Principal amount				$ 500
Debt original discount				$ 50
Maturity date				Jul. 29, 2018
Interest rate				12.00%
Increase interest rate				24.00%
Debt fixed fees				$ 750
Convertible Promissory Note [Member] \| Labrys Fund, LP [Member] \| Securities Purchase Agreement [Member]
Number of shares issued \| shares			7,500
Convertible Promissory Note [Member] \| Labrys Fund, LP [Member] \| Securities Purchase Agreement [Member] \| Debt First Tranche [Member]
Principal amount				170
Debt original discount				17
Repayments of debt				153
Crown Note [Member] \| Crown Bridge Partners, LLC [Member]
Principal amount						$ 309
Labrys Note [Member] \| Labrys Fund, LP [Member]
Principal amount				$ 450
Labrys Note [Member] \| Labrys Fund, LP [Member] \| Securities Purchase Agreement [Member]
Number of shares issued \| shares			85,500

BLUE SPHERE CORP. 10-Q