Note 2 - Revenue from Contracts with Customers - Deferred Costs of Revenue Balances Included in Prepaid Expenses (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2021 |
Mar. 31, 2020 |
|
| Balance, deferred costs of revenue | $ 89,068 | $ 453,607 |
| Defered costs added | 17,406 | 181 |
| Deferred costs expensed | (75,223) | (207,437) |
| Balance, deferred costs of revenue | $ 31,251 | $ 246,351 |
| X | ||||||||||
- Definition Amount of deferred costs of revenue as of the balance sheet date. No definition available.
|
| X | ||||||||||
- Definition The amount of increase in deferred costs of revenue. No definition available.
|
| X | ||||||||||
- Definition The amount of expense for deferred costs of revenue in the period. No definition available.
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