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Subsequent Events (Textual) (Details) (USD $)
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0 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Feb. 07, 2013
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Feb. 09, 2012
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Dec. 28, 2013
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Dec. 29, 2012
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Dec. 31, 2011
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Jan. 02, 2014
Subsequent Event [Member]
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Dec. 28, 2013
Stock Options [Member]
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Dec. 29, 2012
Stock Options [Member]
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Dec. 31, 2011
Stock Options [Member]
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Feb. 07, 2013
2011 Plan [Member]
Stock Options [Member]
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Feb. 09, 2012
2011 Plan [Member]
Stock Options [Member]
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Jan. 24, 2011
2011 Plan [Member]
Stock Options [Member]
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Jan. 21, 2011
2011 Plan [Member]
Stock Options [Member]
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Dec. 28, 2013
2011 Plan [Member]
Stock Options [Member]
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Feb. 20, 2014
2011 Plan [Member]
Stock Options [Member]
Subsequent Event [Member]
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Feb. 07, 2013
2011 Plan [Member]
Stock Options [Member]
Subsequent Event [Member]
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| Subsequent Event [Line Items] | ||||||||||||||||
| Options granted (shares) | 40,594 | 36,740 | 100,000 | 40,594 | 36,740 | 100,000 | 13,790 | |||||||||
| Options granted, weighted average exercise price (dollars per share) | $ 13.70 | $ 11.35 | $ 11.55 | $ 13.70 | $ 11.35 | $ 11.55 | $ 14.76 | |||||||||
| Annual vesting rate (percent) | 20.00% | 20.00% | 20.00% | |||||||||||||
| Period after option grant before options can be exercised (years) | 1 year | 1 year | ||||||||||||||
| Options granted, weighted average fair value (dollars per share) | $ 6.30 | $ 5.03 | $ 7.19 | $ 6.40 | $ 7.93 | $ 6.30 | $ 5.03 | $ 7.93 | $ 6.70 | |||||||
| Risk free interest rate (percent) | 2.00% | 2.04% | 3.34% | 2.00% | ||||||||||||
| Expected life (years) | 7 years | 7 years | 7 years | 7 years | ||||||||||||
| Expected volatility rate (percent) | 53.00% | 53.00% | 49.00% | 52.00% | ||||||||||||
| Expected dividend yield (percent) | 1.80% | 2.10% | 2.10% | 1.80% | ||||||||||||
| Share-based compensation expense | $ 331,362 | $ 337,750 | $ 276,553 | $ 249,000 | $ 228,000 | $ 111,000 | $ 92,000 | |||||||||
| Line of Credit Facility, Extension Period | 1 year | |||||||||||||||