Annual report pursuant to Section 13 and 15(d)

Note N - Income Taxes (Details Textual)

v3.19.1
Note N - Income Taxes (Details Textual) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2018
Dec. 31, 2018
Dec. 31, 2017
Operating Loss Carryforwards, Valuation Allowance, Total   $ 0 $ 0
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent   21.00% 34.00%
Deferred Tax Assets Gross, Increase (Decrease) Due to New Tax Cuts and Jobs Act 2017     $ (8,677,000)
Percentage of Valuation Allowance   100.00%  
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount   $ 24,000 19,000
Unrecognized Tax Benefits, Ending Balance   0 0
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total   0 0
Tax Year 2015 [Member]      
Open Tax Year 2015    
Tax Year 2016 [Member]      
Open Tax Year 2016    
Domestic Tax Authority [Member]      
Operating Loss Carryforwards, Total   65,300,000 60,000,000
State and Local Jurisdiction [Member]      
Operating Loss Carryforwards, Total   $ 30,800,000 $ 26,000,000