Subsequent Events - Additional Information (Detail) (USD $)	0 Months Ended		3 Months Ended	0 Months Ended	1 Months Ended	0 Months Ended
	Mar. 26, 2015	Mar. 02, 2015	Mar. 31, 2015	May 04, 2015	Apr. 30, 2015 MWh	Apr. 17, 2015	Apr. 15, 2015 MWh	Dec. 31, 2014
Subsequent Event [Line Items]
Stock Issued During Period, Shares, New Issues (in Shares)	500,000	18,700,000
Common Stock, Par or Stated Value Per Share (in Dollars per share)			$ 0.0001					$ 0.0001
Proceeds from Issuance of Common Stock			$ 12,000,000
Jiangsu Solarbao Leasing Co. Ltd. [Member] | Xinyu Realforce Energy Co., Ltd. [Member]
Subsequent Event [Line Items]
Sales-leaseback, lease description			In April, 2015 Xinyu Realforce Energy Co., Ltd. (“Realforce”) entered into a sales-leaseback arrangements under which solar modules and other equipment related to the rooftop PV solar system of 5.25 MW sold to Jiangsu Solarbao Leasing Co. Ltd., at an amount of $5,646, a wholly owned subsidiary of the Company, and subsequently leased back by Realforce over lease term of 10 years at a fixed interest rate of 10% per annum. The sole shareholder pledged its 100% shares of Realforce to Jiangsu Solarbao to secure its obligations due to the Company.
Subsequent Event [Member] | Yes Yield Investments Limited [Member]
Subsequent Event [Line Items]
Stock Issued During Period, Shares, New Issues (in Shares)				9,260,000
Common Stock, Par or Stated Value Per Share (in Dollars per share)				$ 0.0001
Stock Issued During Period, Value, New Issues				25,002,000
Subsequent Event [Member] | Yes Yield Investments Limited [Member] | Option Agreement Not Exercised [Member]
Subsequent Event [Line Items]
Common Stock, Par or Stated Value Per Share (in Dollars per share)				$ 0.0001
Stock Issued During Period Shares Option Agreement (in Shares)				9,260,000
Proceeds from Issuance of Common Stock				25,002,000
Exercisable period				7 months
Subsequent Event [Member] | Jiangsu Solarbao Leasing Co. Ltd. [Member] | Xinyu Realforce Energy Co., Ltd. [Member]
Subsequent Event [Line Items]
Business Combination, Consideration Transferred					5,646,000
Power Generating Capacity (in Megawatt-hours)					5.25
Sales-leaseback, lease term					10 years
Sales-leaseback, fixed interest rate					10.00%
Percentage of shares pledged to secure obligations					100.00%
Solar Juice Pty Ltd. [Member]
Subsequent Event [Line Items]
Business acquisition, percentage of voting interests acquired			80.00%
Business Combination, Consideration Transferred			25,500,000
Aerojet [Member]
Subsequent Event [Line Items]
Business acquisition, percentage of voting interests acquired			100.00%
Power Generating Capacity (in Megawatt-hours)			6.02
ZBB Energy Corporation [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Business Combination, Consideration Transferred						33,390,000
ZBB Energy Corporation [Member] | Subsequent Event [Member] | Series C Convertible Preferred Stock [Member]
Subsequent Event [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares)						28,048
Share Price (in Dollars per share)						$ 0.6678
ZBB Energy Corporation [Member] | Subsequent Event [Member] | Common Stock [Member]
Subsequent Event [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares)						8,000,000
Share Price (in Dollars per share)						$ 0.6678
SPI Solar Japan GK [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Business acquisition, percentage of voting interests acquired							100.00%
Business Combination, Consideration Transferred							8,800,000
Power Generating Capacity (in Megawatt-hours)							30
Payments to Acquire Businesses, Gross							3,300,000
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable							$ 5,500,000