Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Stock Based Compensation (Details Textual)

v3.20.2
Note 10 - Stock Based Compensation (Details Textual) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Feb. 17, 2015
Share-based Payment Arrangement, Expense $ 309 $ 232    
Share Based Compensation Expense, Estimated Future Compensation, Total 687      
Share Based Compensation Expense, Estimated For Remainder of Fiscal Year 107      
Share Based Compensation Expense, Estimated For Year Two 339      
Share Based Compensation Expense, Estimated For Year Three 209      
Share Based Compensation Expense, Estimated For Year Four $ 32      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares) 13,243   7,407  
2015 Stock Option and Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)       250,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares) 0 0    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance (in shares) 0      
2015 Stock Option and Incentive Plan [Member] | Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 13,243 7,407    
2015 Stock Option and Incentive Plan [Member] | Restricted Stock [Member] | Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) 3 years      
2015 Stock Option and Incentive Plan [Member] | Restricted Stock [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) 5 years