Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Capital Stock (Details Textual)

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Note 6 - Capital Stock (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Oct. 01, 2017
Sep. 30, 2018
Oct. 01, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period     211,135  
Stock Issued During Period, Shares, New Issues     5,777,768  
Share Price $ 2.25   $ 2.25  
Common Stock, Par or Stated Value Per Share $ 0.01   $ 0.01  
Proceeds from Issuance of Common Stock     $ 13,000  
Payments of Stock Issuance Costs     413  
Stock Issued During Period, Value, New Issues     $ 12,587  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 335,929   335,929  
Restricted Stock Units (RSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period     99,748  
Allocated Share-based Compensation Expense, Total $ 48 $ 55 $ 192 $ 228
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     25,000  
Employee Stock Option [Member]        
Allocated Share-based Compensation Expense, Total $ 27 $ 22 $ 86 $ 45
Common Stock [Member]        
Stock Issued During Period, Shares, Share-based Compensation, Gross [1]     310,883  
Stock Issued During Period, Shares, New Issues [2]     5,777,768  
Stock Issued During Period, Value, New Issues [2]     $ 58  
Additional Paid-in Capital [Member]        
Stock Issued During Period, Value, New Issues     $ 12,529  
[1] 310,883 new common shares resulted from 211,135 exercised stock options and 99,748 vested RSUs during the period.
[2] The Company sold an aggregate of 5,777,768 shares of common stock at a purchase price of $2.25 per share, which closed to subscriptions on August 22, 2018 with a par value of $0.01 per common share. The Company raised proceeds of $13,000 and incurred incremental costs of $413 directly attributable to the rights offering which have been charged against the gross proceeds. Net proceeds of $12,529 have been recorded in additional paid-in capital in shareholders' equity in the consolidated balance sheets.