Segment, Customer and Geographic Information (Details)
12 Months Ended
Dec. 31, 2016
USD ($)
segment
Dec. 31, 2015
USD ($)
segment
Dec. 31, 2014
USD ($)
segment
Segment, Customer and Geographic Information      
Number of reportable segment | segment 1 1 1
Revenue $ 32,496,548 $ 31,593,720 $ 15,653,057
Property and equipment, net 1,456,149 905,622  
Devices      
Segment, Customer and Geographic Information      
Revenue 25,785,272 26,353,235 12,812,446
MRI Compatible IV Infusion Pump Systems      
Segment, Customer and Geographic Information      
Revenue 25,685,522 26,353,235 12,812,446
MRI Compatible Patient Vital Signs Monitoring Systems      
Segment, Customer and Geographic Information      
Revenue 99,750    
Disposable IV Sets and Services      
Segment, Customer and Geographic Information      
Revenue 6,711,276 5,240,485 2,840,611
United States      
Segment, Customer and Geographic Information      
Revenue 28,902,911 28,854,911 11,357,705
Property and equipment, net 1,112,382 837,728  
International      
Segment, Customer and Geographic Information      
Revenue 3,593,637 2,738,809 $ 4,295,352
Property and equipment, net $ 343,767 $ 67,894