Debt (Details) (USD $)		0 Months Ended			0 Months Ended			0 Months Ended
	Feb. 02, 2013 Former Loan Agreement	Dec. 07, 2011 Former Two Year Facility	Dec. 07, 2011 Former Four Year Facility	Jan. 31, 2013 Credit Agreement	Jan. 31, 2013 Credit Agreement Minimum	Jan. 31, 2013 Credit Agreement Maximum	Jan. 31, 2013 Term Loan	Jan. 31, 2013 Term Loan November 20, 2012 to February 28, 2013	Jan. 31, 2013 Term Loan Thereafter through August 31, 2017	Jan. 31, 2013 Term Loan Adjusted annual LIBOR	Jan. 31, 2013 Term Loan Annual prime rate	Jan. 31, 2013 Term Loan 1 month LIBOR Minimum	Jan. 31, 2013 Revolving line of credit	Jan. 31, 2013 Revolving line of credit Adjusted annual LIBOR	Jan. 31, 2013 Revolving line of credit Annual prime rate	Jan. 31, 2013 Revolving line of credit 1 month LIBOR Minimum
Debt
Principal amount		$ 5,000,000	$ 2,000,000				$ 16,600,000
Total amount outstanding	0
Maximum borrowing capacity				18,600,000									2,000,000
Variable rate basis										Adjusted annual LIBOR	Prime rate	1 month LIBOR		Adjusted annual LIBOR	Prime rate	1 month LIBOR
Interest rate added to the reference rate (as a percent)										2.75%		2.50%		2.25%		2.50%
Interest rate subtracted from the reference rate (as a percent)											0.25%				0.25%
Term of loan		2 years	4 years
Equal quarterly payments of principal								650,000	890,000
Upfront fee							$ 70,000
Monthly non-usage fee percentage													0.25%
Fixed charge coverage ratio to be maintained					1.2
Senior funded debt ratio						2.0