Change in fair value of warrants for the period which are included in the statement of income (or changes in net assets) in operating expenses; the fair value of which was or is measured on a recurring basis using model-derived valuations in which one or more significant inputs are unobservable in active markets (Level 3).

No definition available.

Long-term Debt (Details) (USD $)	3 Months Ended		9 Months Ended							0 Months Ended
Long-term Debt (Details) (USD $)	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 10, 2014	Jun. 30, 2014	Jun. 04, 2014	May 31, 2014	Jun. 28, 2013	Jun. 28, 2013 Term Loan [Member]	Sep. 19, 2014 Term Loan [Member]	Jun. 28, 2013 Term Loan [Member] Final Payment [Member]
Debt Instrument [Line Items]
Origination date										Jun. 28, 2013
Original loan amount										$ 27,000,000
Interest rate (in hundredths)										9.75%
Maturity date										Jul. 01, 2017
Fees amount associated with loan										1,620,000		1,942,000
Date from which warrants are exercisable										Jun. 28, 2013
Warrants issued to lenders (in shares)										596,553	596,553
Warrant exercise price (in dollars per share)	$ 2.00		$ 2.00		$ 1.00	$ 3.50	$ 3.00	$ 2.62		$ 2.26	$ 2.00
Warrant expiration date										Jun. 28, 2020
Repayment of long term debt			1,303,000	22,292,000						18,866,000
Term Loan remaining balance at date of Amendment										17,325,000
Accrued but unpaid interest										119,000
Final payment fee										1,078,000
Prepayment fee										312,000
Net proceeds of the Term Loan, after payment of lender fees and expenses			0	27,000,000						7,800,000
Unamortized debt discount										949,000
Outstanding warrants issued and re-priced (in shares)									596,553
Change in fair value of warrant liability	134,000	0	134,000	418,000
Effective interest rate (in hundredths)										13.92%
Loss on debt extinguishment	$ 0	$ 0	$ 0	$ 708,000						$ 708,000