Note 3 - Acquisitions (Details) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended					60 Months Ended	66 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008	Jun. 30, 2013	Jun. 30, 2013
Note 3 - Acquisitions (Details) [Line Items]
Number of Businesses Acquired					3	9	14	11	3	40	40
Business Combination, Consideration Transferred					$ 109,200,000
Payments to Acquire Businesses, Gross					112,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents					2,900,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares)					6,190
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned					85,000
Business Acquisition, Transaction Costs					1,300,000
Business Combination, Acquisition Related Costs	25,000	407,000	28,000	407,000
Business Acquisition, Pro Forma Revenue		145,700,000		286,000,000
Business Acquisition, Pro Forma Earnings Per Share, Basic (in Dollars per share)		$ 0.14		$ 0.33
Interest Expense				3,400,000
Depreciation, Depletion and Amortization	15,822,000	13,762,000	32,148,000	27,787,000
Selling, General and Administrative Expense	34,076,000	27,729,000	67,333,000	56,361,000
MedHealth Holdings [Member]
Note 3 - Acquisitions (Details) [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired					100.00%
Parthenia Medical Group [Member]
Note 3 - Acquisitions (Details) [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired					100.00%
Other 2012 Acquisitions [Member]
Note 3 - Acquisitions (Details) [Line Items]
Business Acquisition, Goodwill, Expected Tax Deductible Amount					52,900,000
Business Acquisition Purchase Price Allocation Intangible Assets Expected Tax Deductible Amount					50,200,000
Pro Forma Additional Expenses [Member]
Note 3 - Acquisitions (Details) [Line Items]
Interest Expense		1,700,000
Depreciation, Depletion and Amortization		3,200,000		6,400,000
Selling, General and Administrative Expense		$ 83,000		$ 988,000