Note 8 - Subsequent Events (Details) (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2013 Amended Credit Agreement [Member] LIBOR [Member]	Jun. 30, 2013 Amended Credit Agreement [Member] Term Loan [Member]	Jun. 30, 2013 Amended Credit Agreement [Member] Revolving Credit Facility [Member]	Jun. 25, 2010 LIBOR [Member]	Jun. 25, 2010 Revolving Credit Facility [Member]
Note 8 - Subsequent Events (Details) [Line Items]
Payments to Acquire Businesses, Gross		$ 32,500,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares)		209,000
Business Combination, Contingent Consideration, Liability	7,200,000	7,200,000
Line of Credit Facility, Maximum Borrowing Capacity					15,000,000		15,000,000
Debt Instrument, Face Amount				30,000,000
Debt Instrument, Interest Rate, Stated Percentage			0.95%			0.90%
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	24,866,000	24,866,000
Business Combination, Separately Recognized Transactions, Additional Disclosures, Acquisition Cost Expensed	$ 230,000	$ 230,000