Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Stockholders' Equity (Details Textual)

v3.20.2
Note 8 - Stockholders' Equity (Details Textual) - USD ($)
$ in Thousands
 1 Months Ended 2 Months Ended 3 Months Ended
May 31, 2019
Sep. 30, 2019
Sep. 30, 2019
Jun. 30, 2019
Sep. 30, 2020
Mar. 20, 2020
May 16, 2019
Jan. 12, 2016
Jul. 28, 2015
Stock Repurchase Program, Authorized Amount               $ 70,000 $ 15,000
Treasury Stock, Shares, Acquired (in shares) 612,729 383,127              
Treasury Stock, Value, Acquired, Cost Method $ 6,700 $ 2,900 $ 2,882 $ 6,682          
Stock Repurchase Program, Remaining Authorized Repurchase Amount         $ 21,900        
Equity Incentive Plan 2016 [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)         2,500,000        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)         1,219,583        
Director [Member]                  
Common Stock, Percentage of Beneficial Stock Outstanding           5.00% 5.00%    
Broady Trust [Member]                  
Stock Repurchase Program, Authorized Amount             $ 8,000    
Open Market Purchases [Member]                  
Stock Repurchase Program, Authorized Amount $ 4,700