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Stock Options, Stock Grants and New Stock (Summary of Stock Option Activity) (Details) (USD $) | 0 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended
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Feb. 07, 2013 | Feb. 09, 2012 | Dec. 28, 2013 | Dec. 29, 2012 | Dec. 31, 2011 | Jan. 01, 2011 | Aug. 21, 2012 President of Palmer [Member] | Dec. 28, 2013 Stock Options [Member] | Dec. 29, 2012 Stock Options [Member] | Dec. 31, 2011 Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Stock Repurchased During Period, Shares |  |  |  |  |  |  |  | 1,752 |  | 1,045
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] |  |  |  |  |  |  |  |  |  |
Outstanding, beginning of year, weighted average exercise price (dollars per share) |  |  | $ 11.82 | $ 11.28 | $ 9.13 |  |  |  |  |
Granted, weighted average exercise price (dollars per share) | $ 13.70 | $ 11.35 |  |  | $ 11.55 |  | $ 12.73 |  |  |
Exercises, weighted average exercise price (dollars per share) |  |  | $ 10.69 | $ 10.50 | $ 9.15 |  |  |  |  |
Canceled / Expired, weighted average exercise price (dollars per share) |  |  | $ 12.70 | $ 0.00 | $ 9.96 |  |  |  |  |
Outstanding, end of year, weighted average exercise price (dollars per share) |  |  | $ 11.95 | $ 11.82 | $ 11.28 | $ 9.13 |  |  |  |
Exercisable, weighted average exercise price (dollars per share) |  |  | $ 11.26 |  |  |  |  | $ 11.26 | $ 10.84 | $ 9.96
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] |  |  |  |  |  |  |  |  |  |
Outstanding, beginning of year (shares) |  |  | 220,740 | 120,800 | 44,000 |  |  |  |  |
Granted (shares) | 40,594 | 36,740 |  | 100,000 |  |  | 75,000 |  |  |
Exercised (shares) |  |  | (15,247) | (11,800) | (19,200) |  |  | (15,247) | (11,800) | (19,200)
Canceled / Expired (shares) |  |  | (83,351) | 0 | (4,000) |  |  |  |  |
Outstanding, end of year (shares) |  |  | 162,736 | 220,740 | 120,800 | 44,000 |  |  |  |
Exercisable (shares) |  |  | 40,591 |  |  |  |  | 40,591 | 29,000 | 20,800
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Roll Forward] |  |  |  |  |  |  |  |  |  |
Expected to vest (shares) |  |  | 191,740 | 100,000 |  |  |  |  |  |
Granted (shares) | 40,594 | 36,740 |  | 100,000 |  |  | 75,000 |  |  |
Vested (shares) |  |  | (27,347) | (20,000) |  |  |  |  |  |
Expected to vest (shares) |  |  | 122,145 | 191,740 | 100,000 |  |  |  |  |
Expected to vest, beginning of the year, weighted average exercise price (dollars per share) |  |  | $ 11.97 | $ 11.55 |  |  |  |  |  |
Granted, weighted average exercise price (dollars per share) | $ 13.70 | $ 11.35 |  |  | $ 11.55 |  | $ 12.73 |  |  |
Vested, weighted average exercise price (dollars per share) |  |  | $ 11.49 | $ 11.55 |  |  |  |  |  |
Expected to vest, end of the year, weighted average exercise price (dollars per share) |  |  | $ 12.18 | $ 11.97 | $ 11.55 |  |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price |  |  | $ 12.71 |  |  |  |  |  |  |
Authorization of stock options (shares) |  |  |  | 350,000 |  |  |  |  |  |
Options outstanding, weighted average contractual term (years) |  |  | 7 years 6 months 15 days | 8 years 4 months 24 days | 8 years | 3 years 7 months 6 days |  |  |  |
Options exercisable, weighted average contractual term (years) |  |  | 6 years 9 months 8 days |  |  |  |  |  |  |
Options expected to vest, weighted average contractual term (years) |  |  | 7 years 9 months 29 days | 8 years 10 months 24 days | 9 years 1 month 6 days |  |  |  |  |
Options outstanding, intrinsic value |  |  | $ 582,894 | $ 367,937 | $ 6,448 | $ 131,670 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Authorized |  |  | 181,017 | 138,260 | 250,000 | 0 |  |  |  |
Options exercisable, intrinsic value |  |  | 173,518 |  |  |  |  |  |  |
Options granted, weighted average fair value (dollars per share) | $ 6.30 | $ 5.03 | $ 7.19 | $ 6.40 | $ 7.93 |  | $ 5.44 |  |  |
Stock repurchased during year |  |  |  |  |  |  |  | $ 25,000 |  | $ 14,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period |  |  | (82,842.00) |  |  |  |  |  |  |

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- Definition Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Section B -Paragraph 11A -Chapter 1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration