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Note 4 - Dividend Activity (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 31, 2014
|
|
| Dividends Per Share, Preferred (in dollars per share) | $ 0.894us-gaap_PreferredStockDividendsPerShareCashPaid |
| Dividends Per Share, Common (in dollars per share) | $ 0.03us-gaap_CommonStockDividendsPerShareCashPaid |
| Amount | $ 476us-gaap_Dividends |
| Dividends Declared July 29, 2014 [Member] | |
| Dividends Per Share, Preferred (in dollars per share) |
$ 0.027us-gaap_PreferredStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = nhtc_DividendsDeclaredJuly292014Member |
| Dividends Per Share, Common (in dollars per share) |
$ 0.01us-gaap_CommonStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = nhtc_DividendsDeclaredJuly292014Member |
| Amount |
127us-gaap_Dividends / us-gaap_DividendsAxis = nhtc_DividendsDeclaredJuly292014Member |
| Date Payable | Aug. 27, 2014 |
| Dividends Declared March 7, 2014 [Member] | |
| Dividends Per Share, Preferred (in dollars per share) |
$ 0.815us-gaap_PreferredStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = nhtc_DividendsDeclaredMarch72014Member |
| Dividends Per Share, Common (in dollars per share) |
$ 0.005us-gaap_CommonStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = nhtc_DividendsDeclaredMarch72014Member |
| Amount |
159us-gaap_Dividends / us-gaap_DividendsAxis = nhtc_DividendsDeclaredMarch72014Member |
| Date Payable | Apr. 08, 2014 |
| Dividends Declared May 6, 2014 [Member] | |
| Dividends Per Share, Preferred (in dollars per share) |
$ 0.02us-gaap_PreferredStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = nhtc_DividendsDeclaredMay62014Member |
| Dividends Per Share, Common (in dollars per share) |
$ 0.005us-gaap_CommonStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = nhtc_DividendsDeclaredMay62014Member |
| Amount |
62us-gaap_Dividends / us-gaap_DividendsAxis = nhtc_DividendsDeclaredMay62014Member |
| Date Payable | Jun. 04, 2014 |
| Dividends Declared November 4, 2014 [Member] | |
| Dividends Per Share, Preferred (in dollars per share) |
$ 0.032us-gaap_PreferredStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = nhtc_DividendsDeclaredNovember42014Member |
| Dividends Per Share, Common (in dollars per share) |
$ 0.01us-gaap_CommonStockDividendsPerShareCashPaid / us-gaap_DividendsAxis = nhtc_DividendsDeclaredNovember42014Member |
| Amount |
$ 128us-gaap_Dividends / us-gaap_DividendsAxis = nhtc_DividendsDeclaredNovember42014Member |
| Date Payable | Dec. 03, 2014 |
| X | ||||||||||
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- Definition
Aggregate dividends paid during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Date the declared dividend will be paid, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate dividends paid during the period for each share of preferred stock outstanding. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Details
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