| Leases - Lease position (Details) - USD ($) | Dec. 31, 2020 | Dec. 31, 2019 | 
|---|---|---|
| Leases | ||
| Lease right of use assets | $ 437,421 | $ 265,140 | 
| Total lease assets | 437,421 | 265,140 | 
| Lease liability - current portion | 140,100 | 89,566 | 
| Lease liability, net of current portion | 301,429 | 177,578 | 
| Total lease liability | $ 441,529 | $ 267,144 | 
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- References No definition available. 
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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