Subsequent Events (Details Narrative) - shares	Nov. 02, 2018	Jul. 11, 2017
Number of shares issue		4,312,500
Subsequent Event [Member] | Share Exchange Agreement [Member]
Business combination, contingent consideration arrangements, description	<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><font style="font: 10pt Times New Roman, Times, Serif"><u>If Kaixin’s revenue equals or exceeds RMB5.0 billion in 2019 (USD 725.7 million), Renren will receive 1.95 million shares. If Kaixin’s 2019 Adjusted Earnings Before Interest, Taxes, Depreciation, and Amortization (“EBITDA”) equals RMB150 million (USD 21.8 million), Renren will receive 3.9 million shares, increasing proportionally to 7.8 million shares if 2019 Adjusted EBITDA equals or exceeds RMB200 million (USD 29.0 million). If Kaixin’s 2020 Adjusted EBITDA equals RMB340 million (USD 49.3 million), Renren will receive 4.875 million shares, increasing proportionally to 9.75 million shares if 2020 Adjusted EBITDA equals or exceeds RMB480 million (USD 69.7 million). Notwithstanding the Revenue and Adjusted EBITDA achieved by the post-transaction company for any period, Kaixin shareholders will receive the 2019 earnout shares if the Company’s stock price is higher than $13.00 for any sixty days in any period of ninety consecutive trading days during a fifteen month period following the closing, and will receive the 2019 earnout shares and the 2020 earnout shares if the Company’s stock price is higher than $13.50 for any sixty days in any period of ninety consecutive trading days during a thirty month period following the closing.</u></font></p>
Subsequent Event [Member] | Share Exchange Agreement [Member] | Kaixin Auto Group [Member]
Consideration shares	28,300,000
Capital shares reserved for future issuance	19,500,000
Number of shares issue	4,700,000