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, 2013	Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Financial Instruments	$ 53	$ 101
Fair Value, Inputs, Level 3 [Member] | Contingent Consideration [Member]
Financial Instruments	855	846
Interest Rate Swap [Member]
Financial Instruments	53	101
Contingent Consideration [Member]
Financial Instruments	$ 855	$ 846