Note 11 - Related Party Transactions (Details) - Transactions Between the Company and Affiliates (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Services provided by affiliates:
Services provided by affiliates	$ 26,536,000	$ 25,375,000
Field Merchandiser Services SMS [Member]
Services provided by affiliates:
Services provided by affiliates	19,716,000	19,236,000
Field Management Services [Member]
Services provided by affiliates:
Services provided by affiliates	4,837,000	4,538,000
Field Merchandiser Services NMA [Member]
Services provided by affiliates:
Services provided by affiliates	$ 1,983,000	$ 1,601,000