XML 54 R43.htm IDEA: XBRL DOCUMENT
v3.26.1

Note F - Benefit Plans (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 101,000 | $ 84,000
Defined Contribution Plan, Employer Discretionary Contribution Amount Per Year Authorized | $ 115,000 |
DC Plan [Member] |  |
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 4.00% |
DC Plan [Member] | Discretionary Contributions Vesting at Two Years [Member] |  |
Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage | 20.00% |
Defined Contribution, Discretionary Contribution Plan, Vesting Period (Year) | 2 years |
DC Plan [Member] | Discretionary Contributions Vesting Each Additional Year [Member] |  |
Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage | 20.00% |
Defined Contribution, Discretionary Contribution Plan, Vesting Period (Year) | 6 years |

X
- Definition Represents the vesting period of discretionary contributions made under the defined contribution plan. + References No definition available. + Details
Name: | ug_DefinedContributionDiscretionaryContributionPlanVestingPeriod
Namespace Prefix: | ug_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Defined Contribution Plan, Employer Discretionary Contribution Amount Per Year, Authorized. + References No definition available. + Details
Name: | ug_DefinedContributionPlanEmployerDiscretionaryContributionAmountPerYearAuthorized
Namespace Prefix: | ug_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of employer's matching contributions to a defined contribution plan that vests in a given year. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployersMatchingContributionAnnualVestingPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RetirementPlanNameAxis=ug_DCPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=ug_DiscretionaryContributionsVestingAtTwoYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=ug_DiscretionaryContributionsVestingEachAdditionalYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |