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Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015
Segment Reporting Information [Line Items] |  |  |  |
Net Sales | $ 67,661 | $ 60,506 | $ 129,682 | $ 117,746
Income before provision for income taxes | 11,682 | 8,634 | 18,055 | 14,600
US [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Sales | 61,488 | 55,113 | 118,014 | 107,583
Income before provision for income taxes | 11,215 | 8,670 | 17,276 | 14,459
Australia Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Sales | 6,173 | 5,393 | 11,668 | 10,163
Income before provision for income taxes | 455 | 59 | 839 | 117
Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Sales | 67,661 | 60,506 | 129,682 | 117,746
Operating Segments [Member] | US [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Sales | 63,672 | 57,006 | 122,440 | 110,901
Operating Segments [Member] | Australia Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Sales | 6,173 | 5,393 | 11,668 | 10,163
Intersegment Eliminations [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Sales | (2,184) | (1,893) | (4,426) | (3,318)
Income before provision for income taxes | 12 | (95) | (60) | 24
Intersegment Eliminations [Member] | US [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Sales | $ 2,184 | $ 1,893 | $ 4,426 | $ 3,318

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