|
Segment Information - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Mar. 31, 2014
|
Dec. 31, 2013
|
Sep. 30, 2013
|
Jun. 30, 2013
|
Mar. 31, 2013
|
Dec. 31, 2012
|
Sep. 30, 2012
|
Jun. 30, 2012
|
Mar. 31, 2014
Segment
|
Mar. 31, 2013
|
Mar. 31, 2012
Customer
|
|
| Segment Information [Line Items] | |||||||||||
| Number of reportable operating segments | 1 | ||||||||||
| Net sales | $ 26,087 | $ 23,385 | $ 24,490 | $ 28,256 | $ 30,905 | $ 25,633 | $ 25,902 | $ 22,533 | $ 102,218 | $ 104,973 | $ 103,186 |
| Number of major customers | 1 | ||||||||||
| Major customers disclosure | In fiscal 2012, total sales to one customer amounted to 14% of total net sales. There were no sales to a single customer that amounted to 10% or more of total consolidated sales in fiscal 2014 or fiscal 2013. | ||||||||||
|
SUDAN
|
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| Segment Information [Line Items] | |||||||||||
| Net sales | 0 | ||||||||||
|
IRAN
|
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| Segment Information [Line Items] | |||||||||||
| Net sales | 0 | ||||||||||
|
CUBA
|
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| Segment Information [Line Items] | |||||||||||
| Net sales | 0 | ||||||||||
|
NORTH KOREA
|
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| Segment Information [Line Items] | |||||||||||
| Net sales | 0 | ||||||||||
|
SYRIA
|
|||||||||||
| Segment Information [Line Items] | |||||||||||
| Net sales | $ 0 | ||||||||||
|
Sales [Member]
|
|||||||||||
| Segment Information [Line Items] | |||||||||||
| Percentage of total sales to a single customer | 0.00% | 0.00% | 14.00% | ||||||||