Income Taxes - Deferred taxes (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Current, Assets
Accrued Expenses	$ 2,994,611	$ 1,553,014
Other	45,194	26,252
Subtotal	3,039,805	1,579,266
Valuation allowance	(3,039,805)	(1,579,266)
Net current deferred taxes	0	0
Current, Liabilities
Net current deferred taxes	0	0
Long Term, Assets
Net operating loss carryforwards	13,063,481	8,785,945
Capital loss carryforward	113,010
Research & development credit	13,733,227	262,831
Capitalized research and development	11,796,974
Amortization	1,422,863	1,438,858
Stock options and warrants	6,263,828	1,856,913
Subtotal	46,393,383	12,344,547
Valuation allowance	(46,376,496)	(12,334,453)
Total long-term deferred taxes	16,887	10,094
Long Term, Liabilities
Fixed assets	(16,887)	(10,094)
Subtotal	(16,887)	(10,094)
Total long-term deferred taxes	$ (16,887)	$ (10,094)