Note 6- Related Party Transactions (Details Textual) (USD $)
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1 Months Ended | |||||
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Apr. 29, 2015
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Feb. 28, 2013
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Feb. 19, 2015
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Mar. 31, 2015
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Mar. 31, 2014
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Jan. 22, 2015
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Broady Health Sciences [Member] | Subsequent Event [Member] | Soothe [Member] | ||||||
Royalty Rate |
2.50%nhtc_RoyaltyRate / us-gaap_ProductOrServiceAxis = nhtc_SootheMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = nhtc_BroadyHealthSciencesMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
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Number of Days Termination Notice | 120 days | |||||
Royalty Expense |
$ 11,700us-gaap_RoyaltyExpense / us-gaap_ProductOrServiceAxis = nhtc_SootheMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = nhtc_BroadyHealthSciencesMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
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Broady Health Sciences [Member] | Soothe [Member] | ||||||
Accrued Royalties |
1,400us-gaap_AccruedRoyaltiesCurrentAndNoncurrent / us-gaap_ProductOrServiceAxis = nhtc_SootheMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = nhtc_BroadyHealthSciencesMember |
2,400us-gaap_AccruedRoyaltiesCurrentAndNoncurrent / us-gaap_ProductOrServiceAxis = nhtc_SootheMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = nhtc_BroadyHealthSciencesMember |
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Broady Health Sciences [Member] | ||||||
Royalty Rate |
2.50%nhtc_RoyaltyRate / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = nhtc_BroadyHealthSciencesMember |
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Accrued Royalties |
29,000us-gaap_AccruedRoyaltiesCurrentAndNoncurrent / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = nhtc_BroadyHealthSciencesMember |
112,000us-gaap_AccruedRoyaltiesCurrentAndNoncurrent / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = nhtc_BroadyHealthSciencesMember |
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Number of Days Termination Notice | 120 days | |||||
George K. Broady [Member] | ||||||
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |
5.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = nhtc_GeorgeKBroadyMember |
5.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = nhtc_GeorgeKBroadyMember |
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Treasury Stock, Shares, Acquired |
91,817us-gaap_TreasuryStockSharesAcquired / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = nhtc_GeorgeKBroadyMember |
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Stock Repurchase Program, Number of Shares Repurchased Per Day |
5,000nhtc_StockRepurchaseProgramNumberOfSharesRepurchasedPerDay / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = nhtc_GeorgeKBroadyMember |
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Treasury Stock, Value, Acquired, Cost Method |
$ 1,100,000us-gaap_TreasuryStockValueAcquiredCostMethod / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = nhtc_GeorgeKBroadyMember |
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George Broady Member | ||||||
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |
5.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners / us-gaap_CounterpartyNameAxis = nhtc_GeorgeBroadyMember |
X | ||||||||||
- Definition
Represents number of days termination notice. No definition available.
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X | ||||||||||
- Definition
Represents the royalty rate. No definition available.
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X | ||||||||||
- Definition
The number of shares acquired per day under a share repurchase program. No definition available.
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X | ||||||||||
- Definition
Carrying value as of the balance sheet date of obligations incurred through that date and payable for royalties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. No definition available.
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X | ||||||||||
- 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Number of shares that have been repurchased during the period and are being held in treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Details
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