Note 8 - Concentration Risk (Details Textual) | 3 Months Ended | 9 Months Ended | 11 Months Ended | 12 Months Ended |
Dec. 31, 2022 USD ($) | Dec. 31, 2021 | Dec. 31, 2022 USD ($) | Dec. 31, 2021 | Mar. 01, 2022 | Mar. 31, 2022 USD ($) |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents in Excess of FDIC Insured Limits | $ 27,000,000 | | $ 27,000,000 | | | $ 25,300,000 |
Maximum [Member] | | | | | | |
Cash, FDIC Insured Amount | $ 250,000 | | $ 250,000 | | | |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | | | | | | |
Number of Customers | 2 | 3 | 3 | 3 | | |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Two Largest Customers [Member] | | | | | | |
Concentration Risk, Percentage | 84% | | | | | |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Walmart [Member] | | | | | | |
Concentration Risk, Percentage | 50% | 37% | 42% | 37% | | |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Amazon [Member] | | | | | | |
Concentration Risk, Percentage | 34% | 50% | 21% | 36% | | |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Three Largest Customers [Member] | | | | | | |
Concentration Risk, Percentage | | 92% | 74% | 88% | | |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Fred Meyer [Member] | | | | | | |
Concentration Risk, Percentage | | 5% | 11% | 15% | | |
Customer Concentration Risk [Member] | Accounts Receivable [Member] | | | | | | |
Number of Customers | | | 2 | | 3 | |
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer One [Member] | | | | | | |
Concentration Risk, Percentage | | | 51% | | | 69% |
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer Two [Member] | | | | | | |
Concentration Risk, Percentage | | | 48% | | | 17% |
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer Three [Member] | | | | | | |
Concentration Risk, Percentage | | | | | | 11% |
Product Concentration Risk [Member] | Revenue, Product and Service Benchmark [Member] | Microwave Ovens [Member] | | | | | | |
Concentration Risk, Percentage | 9% | 10% | 24% | 24% | | |
Product Concentration Risk [Member] | Revenue, Product and Service Benchmark [Member] | Audio Products [Member] | | | | | | |
Concentration Risk, Percentage | 91% | 89% | 75% | 76% | | |
Supplier Concentration Risk [Member] | Products for Resale [Member] | | | | | | |
Number of Factory Suppliers | 3 | 2 | 3 | 2 | | |
Supplier Concentration Risk [Member] | Products for Resale [Member] | Three Largest Factory Suppliers [Member] | | | | | | |
Concentration Risk, Percentage | 100% | | 100% | | | |
Supplier Concentration Risk [Member] | Products for Resale [Member] | Largest Supplier [Member] | | | | | | |
Concentration Risk, Percentage | 74% | 81% | 71% | 83% | | |
Supplier Concentration Risk [Member] | Products for Resale [Member] | Two Largest Factory Suppliers [Member] | | | | | | |
Concentration Risk, Percentage | | 100% | | 100% | | |