Natural Health Trends Corp. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Note 10 - Related Party Transactions (Details Textual)

v3.20.4

Note 10 - Related Party Transactions (Details Textual)			1 Months Ended		2 Months Ended	3 Months Ended	12 Months Ended
Note 10 - Related Party Transactions (Details Textual)	Mar. 20, 2020	May 17, 2019 USD ($) shares	Dec. 31, 2019 USD ($) shares	May 31, 2019 USD ($) shares	Sep. 30, 2019 USD ($) shares	Mar. 31, 2019 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	May 16, 2019
Treasury Stock, Shares, Acquired (in shares) \| shares			97,785	612,729	383,127
Treasury Stock, Value, Acquired, Cost Method			$ 552,000	$ 6,700,000	$ 2,900,000			$ 10,117,000
Broady Trust [Member]
Stock Repurchase Program, Ratio of Number of Shares Authorized to be Repurchased in Private Transaction		0.4105
Treasury Stock, Shares, Acquired (in shares) \| shares		178,324
Treasury Stock, Value, Acquired, Cost Method		$ 1,900,000
BHS [Member] \| Royalty Agreement and License [Member]
Royalty Expense							$ 83,000	$ 96,000
Unrelated Third Party [Member] \| Aberdeen [Member]
Noncontrolling Interest, Ownership Percentage by Parent							20.00%
Director [Member]
Common Stock, Percentage of Beneficial Stock Outstanding	5.00%								5.00%
Director [Member] \| Aberdeen [Member]
Noncontrolling Interest, Ownership Percentage by Parent							40.00%
BHS [Member] \| Royalty Agreement and License [Member]
Related Party Transaction, Additional Extension Period of Agreement (Year)	5 years
Related Party Transaction, Automatic Renewal Period of Agreement (Year)	1 year
Number of Days Termination Notice (Day)	90 days
Aberdeen [Member]
Related Party Transaction, Other Revenues from Transactions with Related Party							$ 420
Aberdeen [Member] \| Shipment of Apparel Products [Member]
Number of Product Orders						1
Related Party Transaction, Amounts of Transaction						$ 7,100
Sharng Holdings [Member] \| Aberdeen [Member]
Noncontrolling Interest, Ownership Percentage by Parent							40.00%

- Definition

Represents the percentage of beneficial stock outstanding.

+ References

No definition available.

+ Details

Name:	nhtc_CommonStockPercentageOfBeneficialStockOutstanding
Namespace Prefix:	nhtc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of days for termination notice.

+ References

No definition available.

+ Details

Name:	nhtc_NumberOfDaysTerminationNotice
Namespace Prefix:	nhtc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of product orders.

+ References

No definition available.

+ Details

Name:	nhtc_NumberOfProductOrders
Namespace Prefix:	nhtc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the additional extension period of the agreement in related party transaction.

+ References

No definition available.

+ Details

Name:	nhtc_RelatedPartyTransactionAdditionalExtensionPeriodOfAgreement
Namespace Prefix:	nhtc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the automatic renewal period of the agreement in related party transaction.

+ References

No definition available.

+ Details

Name:	nhtc_RelatedPartyTransactionAutomaticRenewalPeriodOfAgreement
Namespace Prefix:	nhtc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the ratio of number of shares authorized to be repurchased in private transaction.

+ References

No definition available.

+ Details

Name:	nhtc_StockRepurchaseProgramRatioOfNumberOfSharesAuthorizedToBeRepurchasedInPrivateTransaction
Namespace Prefix:	nhtc_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864

+ Details

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

- Definition

Reflects the sum of all other revenue and income realized from sales and other transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party during the period.

+ References

No definition available.

+ Details

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

- Definition

Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

+ Details

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

- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

Reference 3: 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(29))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_TreasuryStockSharesAcquired
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

+ Details

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

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=nhtc_BroadyTrustMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=nhtc_RoyaltyAgreementAndLicenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	srt_OwnershipAxis=nhtc_AberdeenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=srt_DirectorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=nhtc_BHSMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=nhtc_AberdeenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=nhtc_ShipmentOfApparelProductsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=nhtc_SharngHoldingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: