Note 2 - Revenue from Contracts with Customers (Details Textual) |
3 Months Ended | ||
|---|---|---|---|
|
Mar. 31, 2021
USD ($)
|
Mar. 31, 2020
USD ($)
|
Dec. 31, 2020
USD ($)
|
|
| Accounts Receivable, Allowance for Credit Loss, Ending Balance | $ 0 | $ 0 | |
| Contract with Customer, Liability, Revenue Recognized | $ 492,494 | $ 212,568 | |
| Number of Subcontracts with Significant Financing Component | 1 | ||
| Subcontract, Payments Receivable Under Regular Terms, Percent | 90.00% | ||
| Subcontract, Payments Receivable Deferred Until Specific Deliverable is Met, Percent | 10.00% | ||
| Subcontract, Payments Receivable, Interest Rate | 4.50% | ||
| X | ||||||||||
- Definition The number of subcontracts outstanding which have a significant financing component attached to them. No definition available.
|
| X | ||||||||||
- Definition The percent of the outstanding subcontract which is deferred until specific deliverables are met by the prime contractor. No definition available.
|
| X | ||||||||||
- Definition The interest rate associated with the subcontract No definition available.
|
| X | ||||||||||
- Definition The percent of the outstanding subcontract which is receivable under the regular terms of the subcontract. No definition available.
|
| X | ||||||||||
- Definition Amount of allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|