Debt (Details) (USD $) In Thousands	Sep. 30, 2011		Sep. 30, 2010
Line of Credit Facility [Line Items]
Notes Payable	$ 0	[1]	$ 2,000
Capital Lease Obligations	1,263	[2]	1,811	[2]
Term Note	0		773
Debt and Capital Lease Obligations	4,170		14,724
Long Term Debt And Capital Lease Obligations Non Current	(354)		(953)
Total debt included in current liabilities	3,816		13,771
Revolving credit facility
Line of Credit Facility [Line Items]
Amount Outstanding	0		9,600
Sterling revolving credit facility
Line of Credit Facility [Line Items]
Amount Outstanding	$ 2,907		$ 540

[1] (1) Note payable was related to the acquisition of Centaur and was paid in full on February 8, 2011.

[2] (2) The capital lease obligations have varying maturity dates.