Revenue Recognition (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Sep. 30, 2018 |
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
|
| Total revenues | $ 1,807,042 | $ 1,717,070 | $ 5,076,744 | $ 5,700,147 | ||
| Service and Other Revenues [Member] | ||||||
| Total revenues | $ 67,238 | 67,238 | $ 88,635 | 88,635 | 385,742 | 256,860 |
| Rental, Service, Installation, Training, Shipping And Other [Member] | ||||||
| Total revenues | 62,238 | 88,635 | ||||
| Biologics and drug delivery [Member] | ||||||
| Total revenues | 5,000 | 167,000 | ||||
| Product Revenue [Member] | ||||||
| Total revenues | 1,739,804 | 1,628,435 | 4,691,002 | 5,443,287 | ||
| Functional Neurology [Member] | ||||||
| Total revenues | 1,448,850 | 1,284,029 | 3,787,712 | 4,229,192 | ||
| Biologics And Drug Delivery [Member] | ||||||
| Total revenues | 190,993 | 136,833 | 483,251 | 291,023 | ||
| Capital Equipment [Member] | ||||||
| Total revenues | $ 99,961 | $ 207,573 | 420,039 | 923,072 | ||
| Capital Equipment and Other [Member] | ||||||
| Total revenues | $ 218,742 | $ 256,860 | ||||