Term Loans (Details) (USD $)
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12 Months Ended | 1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 1 Months Ended | 6 Months Ended | 12 Months Ended | 12 Months Ended | |||||||||
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Dec. 31, 2013
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Dec. 31, 2011
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Dec. 31, 2012
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Mar. 31, 2013
GECC Term Loan
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Dec. 31, 2013
GECC Term Loan
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Dec. 31, 2012
GECC Term Loan
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Dec. 31, 2011
GECC Term Loan
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Jan. 31, 2014
GECC Term Loan
Subsequent event
payment
|
Dec. 31, 2013
GECC Term Loan
Maximum
|
Dec. 31, 2012
Oxford Term Loan
payment
|
May 31, 2011
Oxford Term Loan
payment
|
Mar. 31, 2011
Oxford Term Loan
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Jun. 30, 2013
Oxford Term Loan
|
Dec. 31, 2013
Oxford Term Loan
|
Dec. 31, 2012
Oxford Term Loan
|
Dec. 31, 2011
Oxford Term Loan
|
Dec. 31, 2012
Oxford Term Loan
Maximum
|
Dec. 31, 2013
Oxford Term Loan
Minimum
|
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Term Loans | ||||||||||||||||||
Proceeds from term loans | $ 13,500,000 | $ 2,000,000 | $ 12,900,000 | $ 2,000,000 | ||||||||||||||
Principal balance | 23,271,000 | 22,500,000 | ||||||||||||||||
Annual interest rate on term loan (as a percent) | 9.75% | 13.35% | ||||||||||||||||
Number of equal monthly payments of principal plus accrued interest | 30 | 36 | ||||||||||||||||
Exit fee to be paid | 788,000 | |||||||||||||||||
Interest expense recognized | 2,500,000 | 1,700,000 | 1,800,000 | 127,000 | 172,000 | 192,000 | ||||||||||||
Transaction and exit fees and expenses recognized in interest expense | 566,000 | 321,000 | 275,000 | |||||||||||||||
Amount of equipment financing allowed under covenants without any restriction | 4,000,000 | |||||||||||||||||
Amount of debt assumption from acquisitions requiring prior written consent under covenants | 2,000,000 | |||||||||||||||||
Additional amount that the Company may fully utilized in equipment financing | 600,000 | |||||||||||||||||
Principal amount of debt issued | 600,000 | |||||||||||||||||
Number of equal monthly payments of principal plus accrued interest | 36 | |||||||||||||||||
Legal fees and expenses paid | 108,000 | |||||||||||||||||
Future principal payments under the GECC and Oxford Term Loans | ||||||||||||||||||
2014 | 9,451,000 | |||||||||||||||||
2015 | 9,214,000 | |||||||||||||||||
2016 | 4,606,000 | |||||||||||||||||
Total principal payments | 23,271,000 | 22,500,000 | ||||||||||||||||
Less current portion | (9,451,000) | (7,924,000) | ||||||||||||||||
Long term obligation | $ 13,820,000 | $ 4,464,000 |