v3.19.3
Note 11 - Related-party Transactions (Details Textual) - USD ($)
May 03, 2019
Jun. 30, 2019
Chief Executive Officer [Member] | Severance Pay [Member]    
Related Party Transaction, Amounts of Transaction $ 1,091,000  
Majority Investors [Member]    
Notes Payable, Related Parties   $ 5,500,000