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Borrowings (Details Textual) (USD $)
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12 Months Ended | 1 Months Ended | 12 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 1 Months Ended | ||||||||||||||
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Dec. 31, 2012
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Dec. 29, 2012
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Dec. 31, 2011
Amendment
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Dec. 29, 2012
Principal [Member]
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Dec. 29, 2012
Maximum [Member]
Prime Rate [Member]
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Dec. 29, 2012
Minimum [Member]
Prime Rate [Member]
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Apr. 26, 2012
Silicon Valley Bank [Member]
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Aug. 31, 2010
Silicon Valley Bank [Member]
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Dec. 29, 2012
Silicon Valley Bank [Member]
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Aug. 13, 2010
Silicon Valley Bank [Member]
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Dec. 29, 2012
Silicon Valley Bank [Member]
Term Loan [Member]
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Aug. 13, 2010
Silicon Valley Bank [Member]
Term Loan [Member]
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Aug. 13, 2010
Silicon Valley Bank [Member]
Revolving Line of Credit Facility [Member]
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Aug. 13, 2010
Silicon Valley Bank [Member]
Maximum [Member]
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Aug. 13, 2010
Silicon Valley Bank [Member]
Minimum [Member]
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Apr. 30, 2012
JPMorgan Chase Bank [Member]
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Dec. 29, 2012
JPMorgan Chase Bank [Member]
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Apr. 26, 2012
JPMorgan Chase Bank [Member]
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Dec. 29, 2012
JPMorgan Chase Bank [Member]
Revolving Line of Credit Facility [Member]
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Apr. 26, 2012
JPMorgan Chase Bank [Member]
Maximum [Member]
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Apr. 26, 2012
JPMorgan Chase Bank [Member]
Minimum [Member]
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| Line of Credit Facility (Textual) [Abstract] | |||||||||||||||||||||
| Credit Facility Limit | $ 35,000,000 | $ 10,000,000 | $ 40,000,000 | $ 60,000,000 | |||||||||||||||||
| Loss on debt extinguishment | 360,000 | ||||||||||||||||||||
| Prepayment fee amount | 166,000 | ||||||||||||||||||||
| Accelerated deferred financing costs | 185,000 | ||||||||||||||||||||
| Outstanding revolving loan balance | 16,200,000 | ||||||||||||||||||||
| Applicable margin for LIBOR-based interest rate/ Applicable margin for Alternate base rate | 2.00% | 1.00% | 3.00% | 2.00% | 1.50% | 0.50% | |||||||||||||||
| Increase or decrease to the applicable margin | 0.25% | 0.25% | |||||||||||||||||||
| LIBOR based interest rate, principal | 15,000,000 | ||||||||||||||||||||
| Prime Based Rate Principal | 1,200,000 | ||||||||||||||||||||
| Unused credit commitment fee | 0.375% | 0.20% | |||||||||||||||||||
| Cash dominion period trigger amount of excess availability | Less than $6,000,000 | ||||||||||||||||||||
| Cash dominion period exit amount of excess availability | Greater than $7,000,000 | ||||||||||||||||||||
| Excess availability under credit facility | 10,800,000 | ||||||||||||||||||||
| Number of allowed credit increases | Three | ||||||||||||||||||||
| Minimum amount of increase in revolving commitments | 5,000,000 | ||||||||||||||||||||
| Minimum fixed charge coverage ratio trigger | Less than $6,000,000 | ||||||||||||||||||||
| Consolidated fixed charge coverage ratio | 1.0 | ||||||||||||||||||||
| Term loan balance | 17,900,000 | 25,000,000 | |||||||||||||||||||
| Interest rate under credit facility | LIBOR (with a floor of 1.25%) plus a margin from 2.00% to 3.00% per annum | ||||||||||||||||||||
| Floor interest rate under credit facility | 1.25% | ||||||||||||||||||||
| Line of credit facility maturity date | Jun. 30, 2014 | Apr. 26, 2017 | |||||||||||||||||||
| Amortization period of principal balance | 4 years | ||||||||||||||||||||
| Line of Credit Facility (Additional Textual) [Abstract] | |||||||||||||||||||||
| Cash dominion period triggered during the preceding consecutive days | 60 days | ||||||||||||||||||||
| Amount available above the cash dominion trigger | 4,800,000 | ||||||||||||||||||||
| Minimum covenant testing trigger, Amount | 4,000,000 | ||||||||||||||||||||
| Cash dominion period trigger minimum excess availability period | 45 days | ||||||||||||||||||||
| LIBOR based interest rate | 1.75% | ||||||||||||||||||||
| Prime based rate | 2.75% | ||||||||||||||||||||
| Loan parties' obligations under the credit agreement, descriptions | The Loan Parties’ obligations under the Credit Agreement are secured, subject to customary permitted liens and certain exclusions, by a perfected security interest in (a) all tangible and intangible assets and (b) all of the capital stock owned by the Loan Parties (limited, in the case of foreign subsidiaries, to 65% of the capital stock of such foreign subsidiaries). | ||||||||||||||||||||
| Limited security by foreign subsidiaries' capital stock percentage | 65.00% | ||||||||||||||||||||
| Consolidated fixed charge coverage ratio | 4 | ||||||||||||||||||||
| Capital leases payable | $ 140,000 | ||||||||||||||||||||