Cover - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2020 |
Mar. 25, 2021 |
Jun. 30, 2020 |
|
| Cover [Abstract] | |||
| Entity Registrant Name | NETWORK 1 TECHNOLOGIES INC | ||
| Entity Central Index Key | 0001065078 | ||
| Document Type | 10-K | ||
| Amendment Flag | false | ||
| Entity Voluntary Filers | No | ||
| Current Fiscal Year End Date | --12-31 | ||
| Entity Well Known Seasoned Issuer | No | ||
| Entity Small Business | true | ||
| Entity Shell Company | false | ||
| Entity Emerging Growth Company | false | ||
| Entity Current Reporting Status | Yes | ||
| Document Period End Date | Dec. 31, 2020 | ||
| Entity Filer Category | Non-accelerated Filer | ||
| Document Fiscal Period Focus | FY | ||
| Document Fiscal Year Focus | 2020 | ||
| Entity Common Stock Shares Outstanding | 24,117,129 | ||
| Entity Public Float | $ 30,716,476 | ||
| Document Annual Report | true | ||
| Document Transition Report | false | ||
| Entity Interactive Data Current | Yes |
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