Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity and Share-Based Compensation - Series A Convertible Preferred Stock (Details)

v3.19.1
Stockholders' Equity and Share-Based Compensation - Series A Convertible Preferred Stock (Details) - Series A Convertible Preferred Stock
 12 Months Ended
Apr. 05, 2013
USD ($)
shares
Mar. 25, 2013
USD ($)
$ / shares
shares
Dec. 29, 2018
USD ($)
$ / shares
shares
Dec. 30, 2017
USD ($)
Vote
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Series A convertible preferred stock, shares authorized (in shares) | shares   4,150,000 4,150,000 4,150,000
Aggregate shares to be sold (in shares) | shares   4,150,000    
Series A convertible preferred stock, par value | $ / shares   $ 0.001 $ 0.001 $ 0.001
Preferred stock purchase price per share (in dollars per share) | $ / shares   $ 1.45    
Preferred stock purchase, amount | $   $ 6,017,000    
Preferred stock sold (in shares) | shares 150,000 4,000,000    
Conversion of preferred stock | $ $ 217,000 $ 5,800,000    
Issuance costs incurred to company | $ $ 847,000      
Conversion rate of common stock for each share of Series A preferred stock (in shares) | shares       1
Consecutive trading days for calculating weighted average price for the common stock       30 days
Minimum common stock price for consecutive thirty trading days for stock conversion (in dollars per share) | $ / shares       $ 4.35
Percentage of changes of control of company and sales or other dispositions by company (more than)       50.00%
Amount per share to series A preferred in case of liquidation (in dollars per share) | $ / shares     $ 1.45 $ 1.45
Preferred stock annual dividend rate (in dollars per share) | $ / shares       $ 0.058
Number of votes | Vote       1
Cash dividends on amended credit | $       $ 400,000
Dividends | $     $ 161,000 $ 189,000
Issuance of common stock in connection with preferred stock dividends (shares) | shares       0
Common stock dividends during the period | $     $ 41,000 $ 41,000
Series A convertible preferred stock, shares outstanding (in shares) | shares     2,771,000 2,771,000