Note 3 - Revenue Disclosures - Revenue Related to Performance Obligations (Details) |
Jun. 30, 2019
USD ($)
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|---|---|
| Revenue expected to be recognized | $ 15,350 |
| X | ||||||||||
- Definition Amount of transaction price allocated to performance obligation that has not been recognized as revenue. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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