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Note 9 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests (Details) (USD $)
 1 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended 9 Months Ended 3 Months Ended 12 Months Ended 1 Months Ended 3 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 9 Months Ended 12 Months Ended
Aug. 31, 2011
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Dec. 31, 2009
Sep. 30, 2012
Noncontrolling Owners [Member]
RLW [Member]
Sep. 30, 2013
Noncontrolling Owners [Member]
Sep. 30, 2013
RHB [Member]
Dec. 31, 2012
RHB [Member]
Apr. 27, 2012
RHB [Member]
Apr. 30, 2013
RLW [Member]
Final Payment [Member]
Sep. 30, 2012
RLW [Member]
Dec. 31, 2012
RLW [Member]
Aug. 31, 2011
JBC [Member]
Dec. 31, 2012
RLW [Member]
Sep. 30, 2013
Years 2011 To 2015 [Member]
Sep. 30, 2013
Dec. 31, 2012
Minimum [Member]
Dec. 31, 2012
Maximum [Member]
Note 9 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests (Details) [Line Items]                                            
Deferred Revenue             $ 25,000,000                              
Non-Compete Agreement Term             2 years                              
Noncontrolling Interest, Ownership Percentage by Parent                         50.00%     20.00%            
Long-term Line of Credit                       5,000,000                    
Noncontrolling Interests Offer To Buy Percentage                       50.00%                    
Noncontrolling Interests Offer To Sell Percentage                       50.00%                    
Liquidation Value Multiplier             4.5                              
Revaluation Pre-Tax Benenfit                     1,200,000                      
Revaluation Net of Tax Benefit   766,000                                        
Revaluation Pre-Tax Charge         1,900,000                                  
Revaluation Pre-Tax Charge Net of Tax         1,200,000                                  
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage                                 80.00% 100.00%        
Business Acquisition Additional Price Payments 5,000,000                         509,000   23,100,000            
Business Acquisition Additional Price Payments Term 5 years                                          
Business Acquisition Earn-Out Percentage 50.00%                                          
Business Acquisition Earn-Out Calculated Floor                                     2,000,000 1,200,000    
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability         2,000,000                                  
Business Acquisition Undiscounted Earn-Out Liability   2,200,000     2,200,000                                  
Business Acquisition Undiscounted Earn-Out Liability Increase   2,800,000     2,800,000                                  
EBITDA Earn-Out Increase Floor   5,600,000     5,600,000                                  
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners               20.00%                            
Business Acquisition Purchase Price Multiplier                                         4 4.5
Interest Expense, Other           745,000                                
Increase (Decrease) in Put/Call Liability       1,900,000                                    
Other Tax Expense (Benefit)           667,000                 411,000              
Noncontrolling Owners' Interest In Earnings of Subsidiaries and Joint Ventures                   3,300,000                        
Obligation For Noncontrolling Owners Interest In Subsidiaries And Joint Ventures   17,759,000     17,759,000   14,721,000     1,700,000                        
Stockholders' Equity Attributable to Noncontrolling Interest   3,585,000     3,585,000   2,438,000     1,600,000                        
Net Income (Loss) Attributable to Noncontrolling Interest   (2,284,000) (3,079,000)   (3,250,000) (15,155,000)       60,000                        
Income (Loss) from Continuing Operations Attributable to Noncontrolling Interest                 6,700,000                          
Increase (Decrease) in Income Taxes                 $ 2,400,000