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Note 15 - Sale of Subsidiary (Details) - USD ($) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2014 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2011
Note 15 - Sale of Subsidiary (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Disposition of Business |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (565,000) |  |  |  |  |  |  |
Revenue, Net |  | $ 76,073,000 | $ 68,603,000 | $ 84,715,000 | $ 78,466,000 | $ 73,858,000 | $ 68,996,000 | $ 76,123,000 | $ 80,486,000 | $ 68,837,000 | $ 66,152,000 | $ 71,082,000 | $ 74,719,000 | 307,857,000 | [1] | $ 299,463,000 | [1] | $ 280,790,000 | [1] | $ 268,402,000 | $ 293,501,000
Operating Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,533,000 |  | $ 2,318,000 |  | $ 630,000 |  | $ 6,331,000 | $ 16,304,000
LSI Saco Technologies Inc [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 15 - Sale of Subsidiary (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of Stock, Consideration Received on Transaction | $ 1,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Disposition of Business | (565,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit, Terminated | $ 5,000,000 |  |  |  | 5,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue, Net |  |  |  |  | 41,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Income (Loss) |  |  |  |  | $ 183,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | Net sales are attributed to geographic areas based upon the location of the operation making the sale.

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