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Segment Information - Breakdown of net sales by geographic area (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Mar. 31, 2014
|
Dec. 31, 2013
|
Sep. 30, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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Dec. 31, 2012
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Sep. 30, 2012
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Jun. 30, 2012
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Mar. 31, 2014
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Mar. 31, 2013
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Mar. 31, 2012
|
|
| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | $ 26,087 | $ 23,385 | $ 24,490 | $ 28,256 | $ 30,905 | $ 25,633 | $ 25,902 | $ 22,533 | $ 102,218 | $ 104,973 | $ 103,186 |
|
Africa [Member]
|
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| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | 152 | 235 | 371 | ||||||||
|
Asia [Member]
|
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| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | 11,486 | 17,048 | 17,339 | ||||||||
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Australia & New Zealand [Member]
|
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| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | 307 | 29 | 2,840 | ||||||||
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Canada [Member]
|
|||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | 11,419 | 7,084 | 4,626 | ||||||||
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Central America [Member]
|
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| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | 3,210 | 4,633 | 224 | ||||||||
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Europe [Member]
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| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | 2,091 | 2,027 | 571 | ||||||||
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Mexico [Member]
|
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| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | 728 | 89 | 112 | ||||||||
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Middle East [Member]
|
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| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | 4,350 | 14,834 | 16,264 | ||||||||
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South America [Member]
|
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| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | 4,625 | 3,299 | 5,407 | ||||||||
|
U.S. [Member]
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| Segment Reporting Information [Line Items] | |||||||||||
| Net sales | $ 63,850 | $ 55,695 | $ 55,432 | ||||||||