Summary of Significant Accounting Policies (Details)			3 Months Ended			12 Months Ended
Summary of Significant Accounting Policies (Details)	Oct. 08, 2019	Dec. 29, 2018	Mar. 31, 2022 USD ($)	Mar. 31, 2022 CNY (¥)	Mar. 31, 2022 HKD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Summary of Significant Accounting Policies (Details) [Line Items]
Ownership percentage	55.00%
Pretech agreement						$ 1,000,000	$ 1,000,000
Customer advance amount			$ 640,368
Lease, description			Our current lease is from August 28, 2021 to August 27, 2023 at a monthly charge of HK$8,000 per month (approximately US$1,031 per month). The Company has successfully renewed its lease in the past and does not expect any difficulty in renewing it again.	Our current lease is from August 28, 2021 to August 27, 2023 at a monthly charge of HK$8,000 per month (approximately US$1,031 per month). The Company has successfully renewed its lease in the past and does not expect any difficulty in renewing it again.	Our current lease is from August 28, 2021 to August 27, 2023 at a monthly charge of HK$8,000 per month (approximately US$1,031 per month). The Company has successfully renewed its lease in the past and does not expect any difficulty in renewing it again.
Lease, description			HSAL leases 683 square meters of office space at Tower E1, Li Gu Yu Yuan, No. 27 Wen Xuan Road, Chang Sha, Hunan Province, China at a monthly charge of RMB 22,523 per month (approximately $3,264 per month). The term of the lease is from May 15, 2019 to May 14, 2024. The lease may be renewed upon three months prior written notice.	HSAL leases 683 square meters of office space at Tower E1, Li Gu Yu Yuan, No. 27 Wen Xuan Road, Chang Sha, Hunan Province, China at a monthly charge of RMB 22,523 per month (approximately $3,264 per month). The term of the lease is from May 15, 2019 to May 14, 2024. The lease may be renewed upon three months prior written notice.	HSAL leases 683 square meters of office space at Tower E1, Li Gu Yu Yuan, No. 27 Wen Xuan Road, Chang Sha, Hunan Province, China at a monthly charge of RMB 22,523 per month (approximately $3,264 per month). The term of the lease is from May 15, 2019 to May 14, 2024. The lease may be renewed upon three months prior written notice.
Percentage of incremental borrowing		4.50%
Average rate used in translation			$ 1	¥ 6.345363
Average rate amount			$ 1		$ 7.804598
Hunan Syndicore Asia Limited [Member]
Summary of Significant Accounting Policies (Details) [Line Items]
Lease, description			The term of the lease is from May 15, 2019 to May 14, 2024. The lease may be renewed upon three months prior written notice.	The term of the lease is from May 15, 2019 to May 14, 2024. The lease may be renewed upon three months prior written notice.	The term of the lease is from May 15, 2019 to May 14, 2024. The lease may be renewed upon three months prior written notice.
Shenzhen Ezekiel Technology Co. Limited [Member]
Summary of Significant Accounting Policies (Details) [Line Items]
Lease, description			Ezekiel leases 297square meters of office space at Xin Li Kang Tower, Suite 22C, Nanshan District, Shenzhen, Guangdong Province, China at a monthly charge of RMB 36,440 per month (approximately $5,281 per month). The term of the lease is from April 1, 2020 to April 9, 2023. The lease may be renewed upon six months prior written notice.	Ezekiel leases 297square meters of office space at Xin Li Kang Tower, Suite 22C, Nanshan District, Shenzhen, Guangdong Province, China at a monthly charge of RMB 36,440 per month (approximately $5,281 per month). The term of the lease is from April 1, 2020 to April 9, 2023. The lease may be renewed upon six months prior written notice.	Ezekiel leases 297square meters of office space at Xin Li Kang Tower, Suite 22C, Nanshan District, Shenzhen, Guangdong Province, China at a monthly charge of RMB 36,440 per month (approximately $5,281 per month). The term of the lease is from April 1, 2020 to April 9, 2023. The lease may be renewed upon six months prior written notice.

ZZLL INFORMATION TECHNOLOGY, INC 10-Q