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
Deferred Tax Assets, Valuation Allowance   $ 19,022,000 $ 12,397,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent   35.00% 35.00%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount   $ 6,200,000  
Deferred Income Tax Expense (Benefit)   0  
Scenario, Plan [Member]      
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00%    
Domestic Tax Authority [Member]      
Operating Loss Carryforwards   $ 31,300,000  
Operating Loss Carryforwards, Expiration Period   2035  
State and Local Jurisdiction [Member]      
Operating Loss Carryforwards   $ 60,500,000  
Operating Loss Carryforwards, Expiration Period   2035