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Note 12 - Treasury Stock Transactions (Details Textual) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended | 70 Months Ended |  |
--- | --- | --- | --- | ---
Jan. 02, 2016 | Dec. 28, 2013 | Jan. 02, 2016 | Oct. 28, 2013 | Feb. 28, 2010
Stock Repurchase Program 2010 [Member] |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  | $ 7.5
Treasury Stock, Shares, Acquired |  | 15,450 | 1,473,306 |  |
Treasury Stock Acquired, Average Cost Per Share |  | $ 5.35 | $ 5.09 |  |
Treasury Stock, Value, Acquired, Cost Method |  |  | $ 7.5 |  |
Stock Repurchase Program 2013 [Member] |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  | $ 5.0 |
Treasury Stock, Shares, Acquired | 585,966 |  |  |  |
Treasury Stock Acquired, Average Cost Per Share | $ 4.84 |  |  |  |

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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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