Note 6 - Advances on Contracts (Details Textual) - USD ($) |
Sep. 30, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Advances on Inventory Purchases | $ 884,823 | $ 697,192 |
| X | ||||||||||
- Definition Carrying value of capitalized payments made in advance for inventory that is expected to be received within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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