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Note 4 - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Mar. 31, 2016 | Mar. 31, 2015
Net of Treasury Shares [Member] |  |  |  |  |
BASIC EARNINGS PER SHARE |  |  |  |  |
Weighted average shares outstanding during the period, net of treasury shares (a) (in shares) | [1] | 24,807 | 24,203 | 24,648 | 24,149
Weighted average shares outstanding (in shares) | [1] | 24,807 | 24,203 | 24,648 | 24,149
DILUTED EARNINGS PER SHARE |  |  |  |  |
Weighted average shares outstanding (in shares) | [1] | 24,807 | 24,203 | 24,648 | 24,149
Net income |  | $ 522 | $ 393 | $ 8,054 | $ 3,508
Weighted average shares outstanding during the period, net of treasury shares (a) (in shares) |  | 25,080 | 24,528 | 24,918 | 24,470
Weighted average vested restricted stock units outstanding (in shares) |  | 22 |  | 25 |
Weighted average shares outstanding in the Deferred Compensation Plan during the period (in shares) |  | 251 | 325 | 245 | 321
Weighted average shares outstanding (in shares) |  | 25,080 | 24,528 | 24,918 | 24,470
Basic earnings per share (in dollars per share) |  | $ 0.02 | $ 0.02 | $ 0.32 | $ 0.14
Net income |  | $ 522 | $ 393 | $ 8,054 | $ 3,508
Weighted average shares outstanding (in shares) |  | 25,080 | 24,528 | 24,918 | 24,470
Impact of common shares to be issued under stock option plans, and contingently issuable shares, if any (in shares) | [2] | 620 | 115 | 576 | 80
Weighted average shares outstanding (c) (in shares) | [3] | 25,700 | 24,643 | 25,494 | 24,550
Diluted earnings per share (in dollars per share) |  | $ 0.02 | $ 0.02 | $ 0.32 | $ 0.14
[1] | Includes shares accounted for as treasury stock according to accounting standards.
[2] | Calculated using the Treasury Stock method as if dilutive securities were exercised and the funds were used to purchase common shares at the average market price during the period.
[3] | Options to purchase 1,032,250 common shares and 1,729,273 common shares at March 31, 2016 and 2015, respectively, and options to purchase 1,391,300 common shares and 2,272,823 common shares at March 31, 2016 and 2015, respectively, were not included in the computation of the three month and nine month periods for diluted earnings per share, respectively, because the exercise price was greater than the average fair market value of the common shares.

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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=65016374&loc=d3e4984-109258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64863997&loc=d3e1252-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64863997&loc=d3e1252-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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