Investments - Fixed Maturities by Categories (Details) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Amortized cost, fixed maturities, available for sale	$ 74,869,321	$ 58,153,120
Estimated fair value, fixed maturities, available for sale	72,856,107	57,849,454
Amortized cost, fixed maturities, held to maturity	14,864,000	28,098,000
Estimated fair value, fixed maturities, held to maturity	14,864,000	28,098,000
U.S. treasury securities
Amortized cost, fixed maturities, available for sale	14,259,817	7,517,901
Gross unrealized gains, fixed maturities, available for sale	55	21
Gross unrealized losses, fixed maturities, available for sale	(265,833)	(63,697)
Estimated fair value, fixed maturities, available for sale	13,994,039	7,454,225
Corporate securities
Amortized cost, fixed maturities, available for sale	38,084,034	28,745,223
Gross unrealized gains, fixed maturities, available for sale	4,655	43,204
Gross unrealized losses, fixed maturities, available for sale	(996,668)	(130,787)
Estimated fair value, fixed maturities, available for sale	37,092,021	28,657,640
Agency mortgage-backed securities
Amortized cost, fixed maturities, available for sale	22,525,470
Gross unrealized gains, fixed maturities, available for sale	0
Gross unrealized losses, fixed maturities, available for sale	(755,423)
Estimated fair value, fixed maturities, available for sale	21,770,047
Certificates of deposit
Amortized cost, fixed maturities, held to maturity	14,864,000	28,098,000
Gross unrealized gains, fixed maturities, held to maturity	0	0
Gross unrealized losses, fixed maturities, held to maturity	0	0
Estimated fair value, fixed maturities, held to maturity	14,864,000	28,098,000
Total fixed maturities
Fixed maturities, at amortized cost	89,733,321	86,251,120
Gross unrealized gains, fixed maturities	4,710	43,225
Gross unrealized losses, fixed maturities	(2,017,924)	(346,891)
Fixed maturities, at estimated fair value	$ 87,720,107	85,947,454
Agency mortgage backed securities
Amortized cost, fixed maturities, available for sale		21,889,996
Gross unrealized gains, fixed maturities, available for sale		0
Gross unrealized losses, fixed maturities, available for sale		(152,407)
Estimated fair value, fixed maturities, available for sale		$ 21,737,589

No definition available.

Name:	UNAM_GrossUnrealizedGainsFixedMaturities
Namespace Prefix:	UNAM_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

Name:	UNAM_GrossUnrealizedGainsFixedMaturitiesAvailableForSale
Namespace Prefix:	UNAM_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

Name:	UNAM_GrossUnrealizedGainsFixedMaturitiesHeldToMaturity
Namespace Prefix:	UNAM_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

Name:	UNAM_GrossUnrealizedLossesFixedMaturities
Namespace Prefix:	UNAM_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

Name:	UNAM_GrossUnrealizedLossesFixedMaturitiesAvailableForSale
Namespace Prefix:	UNAM_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

Name:	UNAM_GrossUnrealizedLossesFixedMaturitiesHeldToMaturity
Namespace Prefix:	UNAM_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

InvestmentInFixedMaturitiesAtAmortizedCosts

+ References

No definition available.

+ Details

Name:	UNAM_InvestmentInFixedMaturitiesAtAmortizedCost
Namespace Prefix:	UNAM_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

Name:	UNAM_InvestmentInFixedMaturitiesAtEstimatedFairValue
Namespace Prefix:	UNAM_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.2)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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

- Definition

Amount of debt securities categorized neither as held-to-maturity nor trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=75030427&loc=d3e22054-111558

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26610-111562

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
-Section 50
-Paragraph 2
-Subparagraph (b)-(g)
-URI http://asc.fasb.org/extlink&oid=75019621&loc=d3e62557-112803

+ Details

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

- Definition

Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=75030427&loc=d3e22054-111558

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.6)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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

- Definition

Fair value of investments in debt securities classified as held-to-maturity.

+ References

+ Details

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

- Details

Name:	us-gaap_InvestmentTypeAxis=us-gaap_USTreasurySecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InvestmentTypeAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InvestmentTypeAxis=us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InvestmentTypeAxis=us-gaap_CertificatesOfDepositMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InvestmentTypeAxis=UNAM_TotalFixedMaturitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InvestmentTypeAxis=us-gaap_MortgageBackedSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: