Debt (Details Narrative) - KRW (₩) ₩ in Thousands															12 Months Ended
Debt (Details Narrative) - KRW (₩) ₩ in Thousands	Nov. 04, 2019	Nov. 02, 2019	Oct. 02, 2019	Oct. 02, 2019	Sep. 27, 2018	May 25, 2018	Nov. 03, 2017	Sep. 29, 2017	Apr. 19, 2017	Apr. 18, 2017	Jul. 18, 2016	Nov. 04, 2015	Oct. 08, 2015	Jun. 02, 2015	Dec. 31, 2019	Dec. 31, 2018
Short-term borrowings															₩ 468,000	₩ 42,281
Repayments of short term borrowings															758,545	480,873
Long term debt															681,311	674,760
Short Term Borrowings One [Member] \| Refinancing Agreement [Member]
Repayments of short term borrowings			₩ 234,000					₩ 26,000
Short Term Borrowings One [Member] \| Kookmin Bank [Member]
Short-term borrowings													₩ 260,000			₩ 234,000
Debt instrument maturity date													Oct. 02, 2019
Debt instrument, rate of interest															6.09%	6.09%
Short Term Borrowings Two [Member] \| Refinancing Agreement [Member]
Repayments of short term borrowings	₩ 234,000						₩ 26,000
Short Term Borrowings Two [Member] \| Kookmin Bank [Member]
Short-term borrowings												₩ 260,000				₩ 234,000
Debt instrument maturity date												Nov. 14, 2019
Debt instrument, rate of interest															6.13%	6.13%
Short Term Borrowings Three [Member] \| Extension Agreement [Member] \| May 25, 2018 [Member]
Repayments of short term borrowings														₩ 1,000,000
Short Term Borrowings Three [Member] \| Woori Bank [Member]
Short-term borrowings														₩ 1,000,000	₩ 900,000	₩ 1,000,000
Debt instrument maturity date														Jun. 01, 2019
Debt instrument, rate of interest															4.57%	4.57%
Short Term Borrowings Three [Member] \| Woori Bank [Member] \| Extension Agreement [Member] \| Extended Maturity [Member]
Debt instrument extended maturity date						May 29, 2020
Short Term Borrowings Five [Member] \| Suhyup Bank [Member]
Short-term borrowings											₩ 500,000				₩ 392,000	₩ 428,000
Debt instrument maturity date											Jul. 18, 2018
Debt instrument, rate of interest															2.50%	2.50%
Debt instrument extended maturity date											Jul. 18, 2020
Debt collateralized in savings account															₩ 3,000
Short Term Borrowings Seven [Member] \| GMT Co., Ltd. [Member]
Short-term borrowings									₩ 550,000						₩ 195,000	₩ 200,000
Debt instrument maturity date									Nov. 30, 2017
Debt instrument, rate of interest															6.00%	6.00%
Short Term Borrowings Eight [Member] \| GNC Co., Ltd. [Member]
Short-term borrowings										₩ 300,000					₩ 140,000	₩ 300,000
Debt instrument maturity date										Nov. 30, 2017
Debt instrument, rate of interest															6.00%	6.00%
Short Term Borrowings Nine [Member] \| Kwangju Bank [Member]
Short-term borrowings					₩ 130,000											₩ 94,545
Debt instrument maturity date					Aug. 24, 2019
Debt instrument, rate of interest															5.65%	5.65%
Short Term Borrowings Ten [Member] \| Suhyup Bank [Member]
Short-term borrowings				₩ 234,000											₩ 234,000
Debt instrument maturity date				Sep. 25, 2020
Debt instrument, rate of interest															3.94%
Short Term Borrowings Eleven [Member] \| Suhyup Bank [Member]
Short-term borrowings		₩ 234,000													₩ 234,000
Debt instrument maturity date		Oct. 30, 2020
Debt instrument, rate of interest															3.94%

EMARINE GLOBAL INC. 10-K