Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Capital Stock (Details Textual)

v3.19.3
Note 7 - Capital Stock (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Jun. 30, 2019
Sep. 29, 2019
Sep. 30, 2018
Sep. 29, 2019
Sep. 30, 2018
May 24, 2019
Proceeds from Issuance of Common Stock, Net       $ 14,044 $ 12,587  
Rights Offering and Registered Direct Offering [Member]            
Common Stock, Value, Subscriptions           $ 9,136
Stock Issued During Period, Shares, New Issues 1,732,483          
Proceeds from Issuance of Common Stock, Net $ 14,044          
Payments of Stock Issuance Costs $ 532          
Share-based Payment Arrangement, Option [Member]            
Share-based Payment Arrangement, Expense   $ 57 $ 27 120 86  
Restricted Stock Units (RSUs) [Member]            
Share-based Payment Arrangement, Expense   $ 296 $ 48 $ 418 $ 192