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Stock Option Plan (Tables) | 12 Months Ended
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Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of weighted-average grant-date fair value of the options |
|  |  | Option Shares |  |  | Weighted- Average Exercise Price Per Share |
Outstanding, June 30, 2016 |  |  |  |  | 1,046,040 |  |  |  |  | $ | 11.83 |  |
Exercised |  |  |  |  | (468,400) |  |  |  |  | $ | 11.83 |  |
Outstanding, June 30, 2017 |  |  |  |  | 577,640 |  |  |  |  | $ | 11.83 |  |
Exercisable, June 30, 2017 |  |  |  |  | 577,640 |  |  |  |  | $ | 11.83 |  |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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