Operating lease (Tables)

12 Months Ended

Dec. 31, 2021

Operating lease

Schedule of operating lease

	December 31, 2021		December  31, 2020
Rights of use lease assets	$	425,949		415,791
Operating lease liabilities, current		169,393		165,354
Operating lease liabilities, noncurrent		247,041		241,149
Total operating lease liabilities	$	416,434		406,503

Schedule of weighted average remaining lease terms

	December 31, 2021			December  31, 2020
Remaining lease term and discount rate
Weighted average remaining lease term (years)		2			3.08
Weighted average discount rate		2.2	%		4.75	%

Schedule of maturities of lease liabilities

2022	$	169,393
2023		247,041
Total lease payments		416,434
Less: imputed interest		3,059
Present value of lease liabilities	$	413,375