Note 2 - Summary of Significant Accounting Policies (Detail) - Fair Value of the Company's Financial Assets Measured on a Recurring Basis (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Financial Instruments	$ 272	$ 326
Fair Value, Inputs, Level 3 [Member] | Contingent Consideration [Member]
Financial Instruments	1,265	1,621
Estimate of Fair Value, Fair Value Disclosure [Member] | Interest Rate Swap [Member]
Financial Instruments	272	326
Estimate of Fair Value, Fair Value Disclosure [Member] | Contingent Consideration [Member]
Financial Instruments	$ 1,265	$ 1,621