Segment Information (Details Textual) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 31, 2013
|
Dec. 31, 2012
|
Sep. 30, 2012
|
Jun. 30, 2012
|
Mar. 31, 2012
|
Dec. 31, 2011
|
Sep. 30, 2011
|
Jun. 30, 2011
|
Mar. 31, 2013
Segment
|
Mar. 31, 2012
Customer
|
Mar. 31, 2011
Customer
|
|
Segment Information (Textual) [Abstract] | |||||||||||
Net sales | $ 30,905 | $ 25,633 | $ 25,902 | $ 22,533 | $ 20,250 | $ 24,329 | $ 33,595 | $ 25,012 | $ 104,973 | $ 103,186 | $ 74,235 |
Segment Information (Additional Textual) [Abstract] | |||||||||||
Sale to customer | 1 | 1 | |||||||||
Percentage of total sales to a single customer | 14.00% | 14.00% | |||||||||
Number of reportable operating segments | 1 | ||||||||||
Sudan [Member]
|
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Segment Information (Textual) [Abstract] | |||||||||||
Net sales | 0 | ||||||||||
Iran [Member]
|
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Segment Information (Textual) [Abstract] | |||||||||||
Net sales | 0 | ||||||||||
Cuba [Member]
|
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Segment Information (Textual) [Abstract] | |||||||||||
Net sales | 0 | ||||||||||
North Korea [Member]
|
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Segment Information (Textual) [Abstract] | |||||||||||
Net sales | 0 | ||||||||||
Syria [Member]
|
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Segment Information (Textual) [Abstract] | |||||||||||
Net sales | $ 0 |