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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Goodwill, Other Intangible Assets (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Jul. 01, 2015
Finite-Lived Intangible Assets |  |  |  |
Gross Carrying Amount | $ 2,229,819 | $ 2,195,373 |  |
Accumulated Amortization Amount | 491,198 | 333,609 |  |
Net Book Value Amount | 1,738,621 | 1,861,764 |  |
Amortization expense | 236,962 | 190,654 |  |
Estimated future amortization expense |  |  |  |
2018 | 218,712 |  |  |
2019 | 218,712 |  |  |
2020 | 190,918 |  |  |
2021 | 185,376 |  |  |
2022 | 185,376 |  |  |
Thereafter | 725,708 |  |  |
Total | 1,724,802 |  |  |
Goodwill and Other Intangible Assets |  |  |  |
Impairment of Goodwill | 908,000 | 0 |  |
Goodwill | 2,375,454 | $ 3,283,454 | $ 3,283,454 |
Devicix, LLC |  |  |  |
Goodwill and Other Intangible Assets |  |  |  |
Impairment of Goodwill | $ 908,000 |  |  |
Goodwill |  |  |  | $ 3,200,000
Bond Issue Costs |  |  |  |
Finite-Lived Intangible Assets |  |  |  |
Remaining lives |  | 15 years |  |
Gross Carrying Amount |  | $ 79,373 |  |
Accumulated Amortization Amount |  | 55,561 |  |
Net Book Value Amount |  | $ 23,812 |  |
Customer Relationships |  |  |  |
Finite-Lived Intangible Assets |  |  |  |
Remaining lives | 9 years | 9 years |  |
Gross Carrying Amount | $ 1,302,000 | $ 1,302,000 |  |
Accumulated Amortization Amount | 361,662 | 216,998 |  |
Net Book Value Amount | $ 940,338 | $ 1,085,002 |  |
Intellectual Property |  |  |  |
Finite-Lived Intangible Assets |  |  |  |
Remaining lives | 3 years |  |  |
Gross Carrying Amount | $ 100,000 |  |  |
Accumulated Amortization Amount | 27,786 |  |  |
Net Book Value Amount | $ 72,214 |  |  |
Trade Names |  |  |  |
Finite-Lived Intangible Assets |  |  |  |
Remaining lives | 20 years | 20 years |  |
Gross Carrying Amount | $ 814,000 | $ 814,000 |  |
Accumulated Amortization Amount | 101,750 | 61,050 |  |
Net Book Value Amount | $ 712,250 | $ 752,950 |  |
Other |  |  |  |
Finite-Lived Intangible Assets |  |  |  |
Remaining lives | 7 years |  |  |
Gross Carrying Amount | $ 13,819 |  |  |
Net Book Value Amount | $ 13,819 |  |  |

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