Annual report pursuant to Section 13 and 15(d)

Capital Stock - Additional Information (Details)

v3.20.4
Capital Stock - Additional Information (Details)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Jun. 30, 2019
USD ($)
shares
Dec. 29, 2019
USD ($)
$ / shares
shares
Dec. 30, 2018
USD ($)
Jan. 03, 2021
$ / shares
shares
May 24, 2019
USD ($)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Common stock, shares authorized   38,750,000   38,750,000  
Common stock, par value | $ / shares   $ 0.01   $ 0.01  
Common stock, voting rights per share   1   1  
Preferred stock, shares authorized       5,000,000  
Preferred stock, par value | $ / shares       $ 0.01  
Preferred stock, shares outstanding       0  
Proceeds from issuance of common stock (rights offering) | $   $ 14,044 $ 12,587    
Rights Offering and Registered Direct Offering [Member]          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Common stock, subscribed for maximum offering amount | $         $ 9,136
Issuance of common shares from rights offering (in shares) 1,732,483        
Proceeds from issuance of common stock (rights offering) | $ $ 14,044