Annual report pursuant to Section 13 and 15(d)

Share-based Payments - Summary of Stock Options Activity (Details)

v3.7.0.1
Share-based Payments - Summary of Stock Options Activity (Details) - USD ($)
 12 Months Ended
Dec. 30, 2015
Dec. 31, 2016
Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]      
Number of Shares, Beginning   220,500 175,000
Number of Shares, Granted 15,500 38,500 45,500
Number of Shares, Exercised  
Number of Shares, Forfeited  
Number of Shares, Canceled/Expired  
Number of Shares, Ending   259,000 220,500
Number of Shares, Exercisable   239,167 220,500
Weighted Average Exercise Price, Beginning   $ 4.38 $ 4.98
Weighted Average Exercise Price, Granted $ 3.70 3.40 2.07
Weighted Average Exercise Price, Exercised  
Weighted Average Exercise Price, Forfeited  
Weighted Average Exercise Price, Canceled/Expired  
Weighted Average Exercise Price, Ending   4.23 4.38
Weighted Average Exercise Price, Exercisable   $ 4.31 $ 4.38
Weighted Average Remaining Contractual Term, Beginning   3 years 9 months 22 days 4 years 6 months
Weighted Average Remaining Contractual Term, Granted   4 years 5 months 5 days 5 years
Weighted Average Remaining Contractual Term, Ending   3 years 18 days 3 years 9 months 22 days
Weighted Average Remaining Contractual Term, Exercisable   2 years 11 months 1 day 3 years 9 months 22 days
Aggregate Intrinsic Value, Beginning   $ 600
Aggregate Intrinsic Value, Ending   20,100
Aggregate Intrinsic Value, Exercisable   $ 20,100