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Revenue (Tables) | 12 Months Ended
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Jun. 30, 2020
Revenue from Contract with Customer [Abstract] |
Schedule of revenue by product group |
|  | Year Ended June 30, |
|  | 2020 |  |  | 2019 |
PMO |  | $ | 14,639,687 |  |  | $ | 14,098,157 |
Infrared Products |  |  | 18,052,856 |  |  |  | 17,271,590 |
Specialty Products |  |  | 2,275,420 |  |  |  | 2,379,341 |
Total revenue |  | $ | 34,967,963 |  |  | $ | 33,749,088 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 + Details
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