Debt Schedule of Debt Instruments (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
Debt Instrument [Line Items]
Long-term Debt	$ 11,028		$ 750
Long-term Debt, Current Maturities	(1,397)		(750)
Long-term debt, excluding current maturities	9,631		0
SVB Revolving Loan Facility [Member] | Revolving Credit Facility [Member] | Silicon Valley Bank [Member]
Debt Instrument [Line Items]
Loans Payable to Bank	0		750
Comerica Revolver [Member] | Revolving Credit Facility [Member] | Comerica Bank [Member]
Debt Instrument [Line Items]
Loans Payable to Bank	780		0
Comerica Term Loan [Member] | Term Loan [Member] | Comerica Bank [Member]
Debt Instrument [Line Items]
Loans Payable to Bank	2,000		0
Escalate Term Loan [Member] | Term Loan [Member] | Escalate Capital Partners SBIC I, L.P. [Member]
Debt Instrument [Line Items]
Loans Payable to Bank	5,920	[1]	0	[1]
Promissory Note with Stockholder Representative [Member] | Promissory Note [Member]
Debt Instrument [Line Items]
Notes Payable	$ 2,328		$ 0

[1] Total proceeds less debt discount as discussed below