Intangible Assets	12 Months Ended
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	*6. Intangible Assets* As of December 31, 2018 and 2017, the Company had total intangible assets of $3,049,810 and $3,143,291, respectively. Accumulated amortization at December 31, 2018 and 2017 was $3,049,810 and $2,983,821, respectively. Amortization expense for 2018 and 2017 was $65,988 and $199,321, respectively, as determined under the straight-line method. For the twelve months ended December 31, 2018 and 2017, the Company also recognized impairment charges of $93,482 and $77,778, respectively in research and development expense related to certain intellectual property rights. The impairment is the result of an analysis that indicated it was probable the undiscounted cash flows derived from the intellectual property would not exceed its book value during its remaining useful life.

Intangible Assets

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

6. Intangible Assets

As of December 31, 2018 and 2017, the Company had total intangible assets of $3,049,810 and $3,143,291, respectively. Accumulated amortization at December 31, 2018 and 2017 was $3,049,810 and $2,983,821, respectively. Amortization expense for 2018 and 2017 was $65,988 and $199,321, respectively, as determined under the straight-line method. For the twelve months ended December 31, 2018 and 2017, the Company also recognized impairment charges of $93,482 and $77,778, respectively in research and development expense related to certain intellectual property rights. The impairment is the result of an analysis that indicated it was probable the undiscounted cash flows derived from the intellectual property would not exceed its book value during its remaining useful life.