Annual report pursuant to Section 13 and 15(d)

20. Shareholders' Equity (Details Narrative)

v3.8.0.1
20. Shareholders' Equity (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Jan. 02, 2016
Common Stock, issued shares (in shares) 6,875,000 6,655,000  
Common Stock, outstanding shares (in shares) 6,875,000 6,655,000  
Options outstanding 627,000 710,000 780,000
Expected dividend yield (as a percent) 0.00%    
Expected stock price volatility (as a percent) 85.44%    
Risk-free interest rate (as a percent) 2.16%    
Expected life of options (in years) 10 years    
Weighted average fair value per option granted   $ 1.12  
Share based compensation expense $ 32 $ 245  
Aggregate intrinsic value per share outstanding $ 1.04    
Warrants outstanding 24,000    
Warrant exercise price $ 3.55    
Warrant expiration date   May 31, 2020  
2011 Plan [Member]      
Options outstanding 485,000    
2011 Plan [Member] | Convertible Note Agreement [Member]      
Stock issued for convertible note agreement, shares   620,000  
2016 Plan [Member]      
Options authorized for issuance 2,000,000    
Options outstanding 20,000    
CEO [Member] | 2011 Plan [Member]      
Stock issued for compensation, shares   50,000  
Stock issued for compensation, value   $ 62  
Contractor [Member] | 2011 Plan [Member]      
Stock issued for services, shares 220,000 85,000  
Stock issued for services, value $ 272    
Energy Efficiency Investments [Member]      
Warrants issued   167,000  
Fair value of warrants issued   $ 106