XML 21 R13.htm IDEA: XBRL DOCUMENT
v3.22.1

Note 7 - Patents | 3 Months Ended
--- | ---
Mar. 31, 2022
Notes to Financial Statements |
Goodwill and Intangible Assets Disclosure [Text Block] | NOTE 7 — PATENTS
|  | March 31, 2022 |  |  |  |  |
|  | Cost |  |  | Accumulated Amortization |  |  | Net |
Patents-foundation intellectual property |  | $ | 1,377,863 |  |  | $ | (1,113,671 | ) |  | $ | 264,192 |
Total |  | $ | 1,377,863 |  |  | $ | (1,113,671 | ) |  | $ | 264,192 |
|  | December 31, 2021 |  |  |  |  |
|  | Cost |  |  | Accumulated Amortization |  |  | Net |
Patents-foundation intellectual property |  | $ | 1,377,863 |  |  | $ | (1,100,244 | ) |  | $ | 277,619 |
Total |  | $ | 1,377,863 |  |  | $ | (1,100,244 | ) |  | $ | 277,619 |
Patents are amortized utilizing the straight-line method over estimated useful lives ranging from 3 to 20 years. Amortization expense was approximately $13,000 and $11,000 for the three months ended March 31, 2022, and March 31, 2021, respectively. The annual amortization expense expected to be recorded for existing intangibles assets for the years 2022 through 2026 and thereafter, is approximately $40,000, $52,000, $34,000, $28,000 and $110,000.

X
- References No definition available. + Details
Name: | us-gaap_DisclosureTextBlockAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI https://asc.fasb.org/topic&trid=2144416 + Details
Name: | us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration