v3.19.3
Note 13 - Related-party Transactions (Details Textual) - USD ($)
1 Months Ended 9 Months Ended
May 03, 2019
May 31, 2019
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Interest Expense, Related Party     $ 325,000 $ 62,000  
Proceeds from Notes Payable, Total   $ 3,200,000      
Chief Executive Officer [Member] | Severance Pay [Member]          
Related Party Transaction, Amounts of Transaction $ 1,091,000        
Majority Investors [Member]          
Notes Payable, Related Parties     $ 6,400,000    
Debt Instrument, Face Amount         $ 4,500,000
Debt Instrument, Interest Rate, Stated Percentage     8.00%   8.00%
Interest Payable         $ 126,000