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Long Term Obligations - Additional Information (Detail) (USD $)
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12 Months Ended | 12 Months Ended | |||
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Dec. 31, 2013
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Dec. 31, 2012
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Mar. 06, 2014
Subsequent Event
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Dec. 31, 2013
Prime Rate
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Dec. 31, 2013
Libor Rate
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| Schedule of Capitalization, Long-term Debt [Line Items] | |||||
| Debt instrument description | The secured notes payable to bank evidence borrowings under a revolving credit facility which permits us to borrow up to the lesser of (i) $25,000,000, or (ii) an amount equal to 85% of the value of our eligible accounts receivable and up to 55% of the value of our eligible inventory. | ||||
| Debt instrument covenant compliance | As of December 31, 2013, we were in compliance with all of our financial and other covenants under our line of credit agreement. | ||||
| Line of credit borrowing capacity | $ 25,000,000 | ||||
| Percentage of eligible accounts receivable permitted to borrow under the line of credit | 85.00% | ||||
| Percentage of eligible inventory permitted to borrow under the line of credit | 55.00% | ||||
| Borrowing base of the company | 13,800,000 | 16,800,000 | |||
| Interest rate payable | 3.25% | 0.165% | |||
| Additional rate of interest | 1.75% | 3.25% | |||
| Credit facility maturity date | Jul. 10, 2017 | ||||
| Outstanding borrowings under revolving credit facility | $ 14,905,000 | ||||