Annual report pursuant to Section 13 and 15(d)

Income Tax (Narrative) (Details)

v3.19.1
Income Tax (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Operating Loss Carryforwards [Line Items]    
Statutory federal tax rate 21.00%  
Valuation allowance $ 21,794,504 $ 18,415,456
Deferred tax liability 985,487 $ 809,540
State Net Operating Loss Carryforwards [Member]    
Operating Loss Carryforwards [Line Items]    
Net operating loss carryforwards $ 73,861,907  
Net operating loss carryforwards expiration dates Dec. 31, 2024  
Federal Net Operating Loss Carryforwards [Member]    
Operating Loss Carryforwards [Line Items]    
Net operating loss carryforwards $ 84,517,142  
Net operating loss carryforwards expiration dates Dec. 31, 2029  
Pelican Therapeutics [Member]    
Operating Loss Carryforwards [Line Items]    
Net operating loss carryforwards $ 3,027,284  
State Net Pelican Therapeutics [Member]    
Operating Loss Carryforwards [Line Items]    
Net operating loss carryforwards 2,922,000  
Foreign Net Operating Loss Carryforwards [Member]    
Operating Loss Carryforwards [Line Items]    
Net operating loss carryforwards 122,605  
Pelican Net Operating Loss Carryforwards [Member]    
Operating Loss Carryforwards [Line Items]    
Net operating loss carryforwards $ 2,344,952