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Revenue - Information by Type (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disaggregation of Revenue |  |  |
Total Devices Revenue | $ 27,761,639 | $ 21,192,616 | $ 15,470,385
Disposables, services and other | 8,914,822 | 7,728,624 | 6,613,999
Amortization of extended warranty agreements | 1,840,680 | 1,517,743 | 997,208
Total revenue | 38,517,141 | 30,438,983 | 23,081,592
MRI Compatible IV Infusion Pump Systems |  |  |
Disaggregation of Revenue |  |  |
Total Devices Revenue | 18,052,406 | 14,536,998 | 13,621,769
MRI Compatible Patient Vital Signs Monitoring Systems |  |  |
Disaggregation of Revenue |  |  |
Total Devices Revenue | $ 9,709,233 | $ 6,655,618 | $ 1,848,616

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