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CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jun. 30, 2017 | Jun. 30, 2016
Income Statement [Abstract] |  |
Net sales | $ 21,943 | $ 19,189
Cost of sales | 14,757 | 14,271
Gross profit | 7,186 | 4,918
Operating expenses: |  |
Selling expenses | 585 | 780
General and administrative expenses | 2,529 | 1,882
Impairment of goodwill and intangible assets | 113 | 245
Research and development costs | 1,225 | 1,204
Total operating expenses | 4,452 | 4,111
Operating income | 2,734 | 807
Other income (expense): |  |
Interest and dividend income | 27 |
Gain from sale of Investment in Ramsey Property |  | 340
Gain from disposal of equipment | 3 | 18
Interest expense | (12) | (37)
Total other income | 18 | 321
Income from continuing operations before income taxes | 2,752 | 1,128
Income tax (expense) benefit | 2,089 | (25)
Net income from continuing operations | 4,841 | 1,103
Income (loss) from discontinued operations, net of income taxes | 243 | (281)
Net income | 5,084 | 822
Other comprehensive income, net of tax: |  |
Unrealized gain from marketable equity investments, net of income taxes | 33 |
Comprehensive income | $ 5,117 | $ 822
Basic income (loss) per share: |  |
Net income from continuing operations | $ 1.20 | $ 0.27
Income (loss) from discontinued operations | 0.06 | (0.07)
Net income | 1.26 | 0.2
Diluted income (loss) per share: |  |
Net income from continuing operations | 1.19 | 0.27
Income (loss) from discontinued operations | 0.06 | (0.07)
Net income | $ 1.25 | $ 0.2
Weighted average common shares outstanding: |  |
Basic | 4,040,308 | 4,141,353
Diluted | 4,077,575 | 4,173,556

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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 + Details
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