Segment Data (Details) (USD $)
|
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Oct. 31, 2014
|
Oct. 31, 2013
|
Oct. 31, 2014
|
Oct. 31, 2013
|
|
Segment Reporting Information [Line Items] | ||||
Net sales | $ 25,092,772 | $ 22,787,344 | $ 73,210,278 | $ 69,163,340 |
Sales Revenue, Percentage | 100.00% | 100.00% | 100.00% | 100.00% |
Domestic [Member]
|
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Segment Reporting Information [Line Items] | ||||
Net sales | 13,000,000 | 11,470,000 | 37,160,000 | 35,650,000 |
Sales Revenue, Percentage | 51.80% | 50.30% | 50.80% | 51.60% |
International [Member]
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Segment Reporting Information [Line Items] | ||||
Net sales | $ 12,090,000 | $ 11,320,000 | $ 36,050,000 | $ 33,510,000 |
Sales Revenue, Percentage | 48.20% | 49.70% | 49.20% | 48.40% |