XML 62 R31.htm IDEA: XBRL DOCUMENT
v3.20.1

Note 10 - Stockholders' Equity (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Notes Tables |
Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block] |
|  |  |  | Options Outstanding |  |  | Options Exercisable |
Exercise Prices |  |  | Number Outstanding |  |  | Weighted Average Remaining Contractual Life (years) |  |  | Weighted Average Exercise Price |  |  | Number Exercisable |  |  | Weighted Average Exercise Price |
$ | 2.96 |  |  |  | 25,000 |  |  |  | 0.62 |  |  | $ | 2.96 |  |  |  | 25,000 |  |  | $ | 2.96 |
Total |  |  |  | 25,000 |  |  |  | 0.62 |  |  | $ | 2.96 |  |  |  | 25,000 |  |  | $ | 2.96 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block] |
|  | December 31, 2019 |
|  | Shares |  |  | Weighted Average Exercise Price |  |  | Average Remaining Life |  |  | Weighted Average Intrinsic Value |
Outstanding at beginning of period |  |  | 70,000 |  |  | $ | 2.96 |  |  |  | 1.62 |  |  | $ | - |
Granted |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Exercised |  |  | (45,000 | ) |  |  | - |  |  |  | - |  |  |  | - |
Forfeited |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Expired |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Outstanding at end of period |  |  | 25,000 |  |  | $ | 2.96 |  |  |  | 0.62 |  |  | $ | - |
Vested and expected to vest |  |  | 25,000 |  |  | $ | 2.96 |  |  |  | 0.62 |  |  | $ | - |
Exercisable end of period |  |  | 25,000 |  |  | $ | 2.96 |  |  |  | 0.62 |  |  | $ | - |

X
- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding and exercisable options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAndExercisableTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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