Annual report pursuant to Section 13 and 15(d)

Income Taxes, Operating Loss Carryforwards (Details)

v3.23.1
Income Taxes, Operating Loss Carryforwards (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]    
Federal net operating loss carryforward $ 10,900 $ 15,700
Federal research credit carryforwards 700 1,000
State net operating loss carryforward 2,200 3,600
State research credit carryforwards 0 0
Federal operating loss carryforwards, tax effect 4,800  
State operating loss carryforwards, tax effect 1,400  
Utilized federal research credit carryforwards 900  
Income Tax Uncertainties [Abstract]    
Uncertain tax positions 0 0
Interest and penalty on income tax expense 0 0
Deferred tax assets relating to net operating loss carryforwards [Abstract]    
Deferred tax assets relating to net operating loss carryforwards 13,087 $ 19,244
Rexahn stockholders [Member]    
Deferred tax assets relating to net operating loss carryforwards [Abstract]    
Deferred tax assets relating to net operating loss carryforwards $ 10,300