Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details Textual)

v3.8.0.1
Income Taxes (Details Textual) - USD ($)
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Operating Loss Carryforwards [Line Items]      
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent   34.00% 34.00%
Adjustments To Deferred Tax Assets   $ 5,900,000  
Net deferred tax assets   0 $ 0
Unrecognized tax benefits   0 0
Accrued interest and penalties related to uncertain tax positions   0 $ 0
Scenario, Plan [Member]      
Operating Loss Carryforwards [Line Items]      
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00%    
Federal      
Operating Loss Carryforwards [Line Items]      
Federal net operating loss carryforwards   $ 43,000,000