RELATED PARTIES TRANSACTIONS (Details 1) - USD ($)	6 Months Ended
Jun. 30, 2020	Dec. 31, 2019
Total Due to	$ 629,451	$ 983,210
Dato Sri Warren Eu Hin Chai [Member]
Total Due to	$ 599,144	896,867
Purpose	Capital Advance
SKH Media Sdn. Bhd. [Member]
Total Due to	$ 0	$ 56,036
Purpose	Capital Advance

Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

No definition available.

Name:	umhl_TotalDueTo
Namespace Prefix:	umhl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant