Note 6 - Stock-based Compensation (Tables)
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12 Months Ended |
Jan. 01, 2017 |
Notes Tables |
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Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |
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| | Outstanding balance at December 29, 2013
| | | 435,000 | | | $ | 2.50 | | | | | | | | | |
| | | 498,879 | | | $ | 1.80 | | | | | | | | | |
| | | — | | | $ | — | | | | | | | | | |
| | | (116,667 |
| | $ | 2.48 | | | | | | | | | | Outstanding balance at December 28, 2014
| | | 817,212 | | | $ | 2.07 | | | | | | | | | |
| | | — | | | $ | — | | | | | | | | | |
| | | (95,431 |
| | $ | 2.03 | | | | | | | | | |
| | | (66,667 | ) | | $ | 3.11 | | | | | | | | | |
| | | — | | | $ | — | | | | | | | | | | Outstanding balance at January 3, 2016
| | | 655,114 | | | $ | 1.98 | | | | | | | | | |
| | | 387,255 | | | $ | 1.33 | | | | | | | | | |
| | | (61,756 |
| | $ | 3.46 | | | | | | | | | |
| | | (363,847 |
| | $ | 1.46 | | | | | | | | | |
| | | — | | | | — | | | | | | | | | | | | | | | | | | | | | | | | | | |
Outstanding balance at
January 1, 2017
| | | 616,766 | | | $ | 1.82 | | | $ | 8 | | | | 5.6 | | | | | | | | | | | | | | | | | | |
Exercisable balance at
January 1, 2017
| | | 445,080 | | | $ | 1.90 | | | $ | — | | | | 4.4 | |
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Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
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| | Black-Scholes weighted-average assumptions
| | | | | | | | | | | | | | | | | | | | | | | | | |
| | | 0.0 | % | | | N/A | | | | 0.0 | % |
| | | 43.8 | % | | | N/A | | | | 57.0 | % |
| | | 29.0 | % | | | N/A | | | | 18.0 | % |
| | | 1.33 | % | | | N/A | | | | 1.22 | % | Expected option life in years
| | | 4.0 | | | | N/A | | | | 4.2 | | | | | | | | | | | | | | | Weighted-average stock option fair value per option granted
| | $ | 0.48 | | | $ | N/A | | | $ | 0.82 | |
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Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] |
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Weighted average exercise price
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Weighted average exercise price
| | | | | | | | | | | | | | | | 370,610 | | | $ | 1.80 | | | | 270,080 | | | $ | 1.80 | | 25,000 | | | $ | 1.96 | | | | 25,000 | | | $ | 1.96 | | 100,000 | | | $ | 2.02 | | | | 100,000 | | | $ | 2.02 | | 50,000 | | | $ | 2.19 | | | | 50,000 | | | $ | 2.19 | | 71,156 | | | $ | 1.33 | | | | — | | | $ | — | | 616,766 | | | $ | 1.82 | | | | 445,080 | | | $ | 1.90 | |
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Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] |
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Binomial Model
weighted-average assumptions
| | | | | | | | | | | | | | | | | | | | | | | | | |
| | | 1.34 | | | | N/A | | | | 1.80 | |
| | | 42.2 | % | | | N/A | | | | 41.6 | % |
| | | 29.0 | % | | | N/A | | | | 18.0 | % |
| | | 0.60 | % | | | N/A | | | | 1.05 | % |
| | | 3.0 | | | | N/A | | | | 3.0 | | | | | | | | | | | | | | |
Weighted-average
RSU
fair value per
award
granted
| | $ | 0.42 | | | $ | N/A | | | $ | 0.63 | |
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Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block] |
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| | | | | | | | | | | | | | | Outstanding balance at December 29, 2013
| | | — | | | $ | — | | | | | |
| | | 520,433 | | | $ | 1.94 | | | | | |
| | | — | | | $ | — | | | | | | RSU converted into common shares
| | | — | | | $ | — | | | | | | | | | | | | | | | | | | | Outstanding balance at December 28, 2014
| | | 520,433 | | | $ | 1.94 | | | | 2.50 | | | | | | | | | | | | | | |
| | | 91,818 | | | $ | 1.47 | | | | | |
| | | (64,908 |
| | $ | 1.89 | | | | | | RSU converted into common shares
| | | (67,779 |
| | $ | 1.80 | | | | | | | | | | | | | | | | | | | Outstanding balance at January 3, 2016
| | | 479,564 | | | $ | 1.88 | | | | 1.51 | | | | | | | | | | | | | | |
| | | 987,764 | | | $ | 0.84 | | | | | |
| | | (352,077 |
| | $ | 0.87 | | | | | | RSU converted into common shares
| | | (25,125 |
| | $ | 1.99 | | | | | | | | | | | | | | | | | | | Outstanding balance at January 1, 2017
| | | 1,090,126 | | | $ | 1.22 | | | | 1.01 | |
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