Income Taxes (Details 1) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Net operating loss carryforwards - Federal	$ 33,494,000	$ 29,303,000
Net operating loss carryforwards - State	6,171,000	8,441,000
Net operating loss carryforwards - Foreign	2,128,000	1,876,000
Capitalized licensing fees	757,000	912,000
Stock-based compensation	2,892,000	2,447,000
Accrued compensation	349,000	307,000
Other	24,000	110,000
Totals	45,815,000	43,396,000
Less valuation allowance	(45,815,000)	(43,396,000)
Deferred tax assets