XML 38 R27.htm IDEA: XBRL DOCUMENT v3.10.0.1
Note 7 - Stock Plans (Details Textual) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total $ 684    
Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 34,755   366,356
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested or Cancelled     267,413
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount     $ 0
Allocated Share-based Compensation Expense, Total $ 207 $ 237  
Restricted Stock Units (RSUs) [Member] | Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period     1 year
Restricted Stock Units (RSUs) [Member] | Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period     3 years