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Income Taxes (Details 2) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Deferred Tax Assets:    
Net operating loss carryforwards $ 2,588,641 $ 2,742,397
Stock-based compensation 347,977 333,066
Research & development tax credits 526,134 201,840
Intangible assets 364,508 234,183
Gross deferred tax assets 3,827,260 3,511,486
Valuation allowance (3,827,260) (3,511,486)
Deferred tax assets, net of valuation allowance 0 0
Changes in valuation allowance $ 315,774 $ 1,439,452