Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Capital Stock (Details Textual)

v3.19.2
Note 7 - Capital Stock (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Jun. 28, 2019
Jun. 30, 2019
Jun. 30, 2019
Jul. 01, 2018
Jun. 30, 2019
Jul. 01, 2018
May 24, 2019
Proceeds from Issuance of Common Stock, Net         $ 14,044,000 $ 361,000  
Rights Offering and Registered Direct Offering [Member]              
Common Stock, Value, Subscriptions $ 9,135,000           $ 9,135,978
Stock Issued During Period, Shares, New Issues 1,732,483 1,732,483          
Proceeds from Issuance of Common Stock, Net   $ 14,000,000          
Payments of Stock Issuance Costs   $ 400,000          
Share-based Payment Arrangement, Option [Member]              
Share-based Payment Arrangement, Expense     $ 41,000 $ 34,000 62,000 59,000  
Restricted Stock Units (RSUs) [Member]              
Share-based Payment Arrangement, Expense     $ 56,000 $ 43,000 $ 123,000 $ 144,000