Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Related Party Transactions (Details Textual)

v3.10.0.1
Note 12 - Related Party Transactions (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Shareholder [Member]        
Related Party Transaction, Amounts of Transaction $ 68,000 $ 61,000 $ 116,000 $ 113,000