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Concentration of Business (Tables) | 6 Months Ended
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Sep. 30, 2018
Risks and Uncertainties [Abstract] |
Schedules of Revenue Concentration of Risk | The Company sells its products throughout the US and to foreign customers, with concentrations as follows:
| Three Months Ended September 30, |  | Six Months Ended September 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
International Net Sales | $ | 190,320 |  |  | $ | 179,783 |  |  | $ | 299,207 |  |  | $ | 268,787 |
% of Net Sales | 37.9 | % |  | 37.3 | % |  | 39.8 | % |  | 38.8 | %
Net Sales in Foreign Currencies | $ | 162,587 |  |  | $ | 160,195 |  |  | $ | 227,013 |  |  | $ | 209,427 |
% of Net Sales | 32.4 | % |  | 33.2 | % |  | 30.2 | % |  | 30.3 | %
Schedule of long-lived assets, which consist of property and equipment, by major country | Long-lived assets, which consist of net property and equipment, was as follows:
| September 30, 2018 |  | March 31, 2018
US | $ | 199,192 |  |  | $ | 203,956 |
All other countries* | 16,528 |  |  | 16,206 |
Total | $ | 215,720 |  |  | $ | 220,162 |
*No single foreign country's net property and equipment comprised 10.0% or more of the Company's total net property and equipment as of September 30, 2018 and March 31, 2018.

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- Definition Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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- Definition Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13537-108611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13531-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6327-108592 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6442-108592 + Details
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