XML 48 R38.htm IDEA: XBRL DOCUMENT v3.21.2
Note 6 - Share-based Compensation - Compensation Cost (Details) - Selling, General and Administrative Expenses [Member] - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Allocated share based compensation $ 620 $ 562 $ 1,121 $ 1,098
Common Stock [Member]        
Allocated share based compensation 100 100 200 200
Employee and Nonemployee Stock Option [Member]        
Allocated share based compensation 53 54 105 113
Restricted Stock Units (RSUs) [Member]        
Allocated share based compensation $ 467 $ 408 $ 816 $ 785