SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Financial information of Digiwork (Details) - USD ($)	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Net cash used in operating activities	$ 35,500	$ (234,684)
Net cash provided by investing activities		(438,009)
Net cash provided by financing activities	37,038	167,187
Digiwork Korea [Member]
Net cash used in operating activities	$ (5)	(207)
Net cash provided by investing activities		112
Net cash provided by financing activities		$ 807

Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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