The amount owed to modified co insurance deposit account as at the end of the reporting period.

No definition available.

Name:	mdwt_AmountDueToReinsurer
Namespace Prefix:	mdwt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of reinsurance contingency reserve as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	mdwt_ContingencyReserves
Namespace Prefix:	mdwt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage of indemnity coinsurance.

+ References

No definition available.

+ Details

Name:	mdwt_PercentageOfIndemnityCoinsurance
Namespace Prefix:	mdwt_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of quota share of certain liabilities with respect to fixed indexed annuity.

+ References

No definition available.

+ Details

Name:	mdwt_PercentageOfQuotaShareOfLiabilitiesFixedIndexedAnnuity
Namespace Prefix:	mdwt_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of quota share of certain liabilities with respect to multi year guaranteed annuity.

+ References

No definition available.

+ Details

Name:	mdwt_PercentageOfQuotaShareOfLiabilitiesMultiYearGuaranteedAnnuity
Namespace Prefix:	mdwt_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of unrealized gain (loss) on investment in debt and equity securities.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of unrealized investment gain (loss) which decreases (increases) deferred policy acquisition cost.

+ References

No definition available.

+ Details

Name:	us-gaap_DeferredPolicyAcquisitionCostUnrealizedInvestmentGainLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Increase in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 15
-URI http://asc.fasb.org/subtopic&trid=2229187

+ Details

Name:	us-gaap_EmbeddedDerivativeGainOnEmbeddedDerivative
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 15
-URI http://asc.fasb.org/subtopic&trid=2229187

+ Details

Name:	us-gaap_EmbeddedDerivativeLossOnEmbeddedDerivative
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount, after premiums ceded to other entities and premiums assumed by the entity, of other types of premiums earned.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 605
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547

Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 605
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=84167274&loc=d3e27175-158546

Reference 3: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 605
-Section 50
-Paragraph 1
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547

Reference 4: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 605
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547

Reference 5: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(1))
-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

+ Details

Name:	us-gaap_PremiumsEarnedNetOtherInsurance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount, after valuation allowance, recoverable under reinsurance contracts including premium paid under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(6))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=99397103&loc=d3e6824-158387

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 310
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=99404803&loc=d3e21409-158489

+ Details

Name:	us-gaap_ReinsuranceRecoverables
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.24)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_SelfInsuranceReserve
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_TypeOfArrangementAxis=mdwt_SenecaReAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsegmentsAxis=mdwt_MultiYearGuaranteedAnnuityBusinessMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsegmentsAxis=mdwt_FixedIndexedAnnuityBusinessMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=mdwt_USAllianceLifeAndSecurityCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=mdwt_UsAllianceAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=mdwt_AmericanLifeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=mdwt_FundsWithheldCoinsuranceAndModifiedCoinsuranceAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=mdwt_UnifiedLifeInsuranceCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=mdwt_OptimumReinsuranceCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=mdwt_SagicorLifeInsuranceCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=mdwt_AmericanLifeAndSecurityNationalLifeInsuranceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=mdwt_CrestlineReSp1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Reinsurance (Narrative) (Details) - USD ($) $ in Thousands		6 Months Ended		12 Months Ended
Reinsurance (Narrative) (Details) - USD ($) $ in Thousands	Apr. 24, 2020	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Reinsurance recoverables (See Note 7)		$ 24,121		$ 38,579
Unrealized gains (losses)		(2,900)		200
Embedded derivative gains		3,100
Embedded derivative losses			$ 400
Contingency reserves		0		0
Deferred acquisition cost		107		(74)
Seneca Re Agreement \| MYGA
Percentage of indemnity coinsurance	25.00%
Seneca Re Agreement \| FIA
Percentage of indemnity coinsurance	40.00%
US Alliance Life and Security Company [Member]
Reinsurance recoverables (See Note 7)		$ 4,301		5,064
US Alliance Life and Security Company [Member] \| US Alliance Agreement \| MYGA
Percentage of multi year guaranteed annuity		20.00%
American Life [Member]
Net premium income		$ 37,500
Net statutory reserves		$ 43,600
American Life [Member] \| FW, Modco Agreement \| MYGA
Percentage of multi year guaranteed annuity		45.00%
American Life [Member] \| FW, Modco Agreement \| FIA
Percentage of fixed indexed annuity		45.00%
Unified Life Insurance Company [Member]
Reinsurance recoverables (See Note 7)		$ 1,022		1,037
Optimum Reinsurance Company [Member]
Reinsurance recoverables (See Note 7)		594		561
Sagicor Life Insurance Company [Member]
Reinsurance recoverables (See Note 7)		10,628		10,755
American Life and Security National Life Insurance [Member]
Net premium income		37,500		37,500
Net statutory reserves		34,800		34,800
Amount owed deposit account		$ 2,400		$ 2,400
American Life and Security National Life Insurance [Member] \| US Alliance Agreement \| MYGA
Percentage of multi year guaranteed annuity				20.00%
American Life and Security National Life Insurance [Member] \| US Alliance Agreement \| FIA
Percentage of fixed indexed annuity		20.00%		20.00%
Crestline SP 1
Reinsurance recoverables (See Note 7)		$ 3,865		$ 18,288