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Note 13 - Stock Incentive Plans (Details Textual)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Nov. 13, 2015
USD ($)
$ / shares
shares
Sep. 29, 2015
USD ($)
Sep. 01, 2015
$ / shares
shares
Jun. 12, 2015
USD ($)
shares
Mar. 09, 2015
shares
Dec. 31, 2014
USD ($)
Dec. 12, 2014
USD ($)
$ / shares
shares
Oct. 15, 2014
USD ($)
$ / shares
shares
Jun. 26, 2012
$ / shares
shares
May. 31, 2012
Dec. 31, 2011
USD ($)
shares
Sep. 30, 2015
USD ($)
Dec. 31, 2014
USD ($)
Oct. 15, 2014
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2013
USD ($)
May. 22, 2012
shares
Predecessor [Member] | Equity Incentive Plan [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | shares                     5,900,000                 1,050,000
Predecessor [Member] | 2006 Equity Incentive Plan [Member] | Management [Member]                                        
Allocated Share-based Compensation Expense                           $ 555,344         $ 988,502  
Predecessor [Member] | Management [Member] | Minimum [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term                 5 years                      
Predecessor [Member] | Management [Member] | Maximum [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term                 10 years                      
Predecessor [Member] | Management [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares                 1,580,000                      
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares                 $ 3.34                      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period                 4 years                      
Predecessor [Member] | Reverse Stock Split [Member]                                        
Stockholders' Equity Note, Stock Split, Conversion Ratio                   4                    
Predecessor [Member] | Granted in December 2011 [Member] | Restricted Stock Units (RSUs) [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period                     3 years                  
Allocated Share-based Compensation Expense                           517,039         538,898  
Stock Issued During Period, Shares, Restricted Stock Award, Gross | shares                     415,750                  
Stock Issued During Period, Value, Restricted Stock Award, Gross                     $ 1,646,370                  
Predecessor [Member] | Restricted Stock [Member] | General and Administrative Expense [Member]                                        
Allocated Share-based Compensation Expense                           517,039         3,876,032  
Predecessor [Member] | Employee Stock Option [Member] | General and Administrative Expense [Member]                                        
Allocated Share-based Compensation Expense                           555,344         988,502  
Predecessor [Member] | General and Administrative Expense [Member]                                        
Allocated Share-based Compensation Expense                           1,072,383         4,864,534  
Predecessor [Member]                                        
Adjustments Related to Tax Withholding for Share-based Compensation                           $ 0         $ 352,306  
Successor [Member] | Management Incentive Plan 2014 [Member] | Chief Executive Officer [Member] | Common Stock [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | shares               540,540                        
Successor [Member] | Management Incentive Plan 2014 [Member] | Chief Executive Officer [Member] | Exercise Price Range 1 [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares               675,676                        
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares               $ 18                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares               $ 5.80                        
Successor [Member] | Management Incentive Plan 2014 [Member] | Chief Executive Officer [Member] | Exercise Price Range 2 [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares               810,811                        
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares               $ 25.25                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares               $ 4.12                        
Successor [Member] | Management Incentive Plan 2014 [Member] | Chief Executive Officer [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate               0.00%                        
Allocated Share-based Compensation Expense                         $ 790,890              
Stock Issued During Period, Value, Share-based Compensation, Gross               $ 8,900,000                        
Stock or Unit Option Plan Expense           $ 970,552                            
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate               1.29%                        
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate               43.00%                        
Share Based Compensation Arrangement By Share Based Payments Award Options Grants Date Fair Value               $ 7,260,000                        
Successor [Member] | Management Incentive Plan 2014 [Member] | Management [Member] | Exercise Price Range 1 [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares             450,450                          
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares             $ 18                          
Allocated Share-based Compensation Expense                         210,843         $ 1,565,378    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares             $ 4.26                          
Successor [Member] | Management Incentive Plan 2014 [Member] | Management [Member] | Exercise Price Range 2 [Member] | General and Administrative Expense [Member]                                        
Allocated Share-based Compensation Expense                                   $ 887,875    
Successor [Member] | Management Incentive Plan 2014 [Member] | Management [Member] | Exercise Price Range 2 [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares             540,540                          
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares             $ 25.25                          
Allocated Share-based Compensation Expense                         $ 149,220              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares             $ 2.95                          
Successor [Member] | Management Incentive Plan 2014 [Member] | Management [Member]                                        
Stock Issued During Period, Value, Share-based Compensation, Gross             $ 4,970,000                          
Share Based Compensation Arrangement By Share Based Payments Award Options Grants Date Fair Value             $ 3,510,000                          
Stock Issued During Period, Shares, Share-based Compensation, Gross | shares             360,360                          
Successor [Member] | Restricted Stock [Member] | General and Administrative Expense [Member]                                        
Allocated Share-based Compensation Expense                                    
Successor [Member] | Employee Stock Option [Member] | General and Administrative Expense [Member]                                        
Allocated Share-based Compensation Expense                         $ 940,110         $ 249,853    
Successor [Member] | General and Administrative Expense [Member]                                        
Allocated Share-based Compensation Expense                         $ 2,121,505         3,969,989    
Scenario, Forecast [Member]                                        
Allocated Share-based Compensation Expense                             $ 605,779 $ 1,479,655 $ 2,977,752      
Management Incentive Plan 2014 [Member] | Former Chief Executive Officer [Member]                                        
Allocated Share-based Compensation Expense                                   803,420    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | shares         270,270                              
Management Incentive Plan 2014 [Member] | Restricted Stock [Member] | General and Administrative Expense [Member]                                        
Allocated Share-based Compensation Expense                                   142,047    
Management Incentive Plan 2014 [Member] | Restricted Stock [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | shares       55,000                                
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Grant Date Fair Value       $ 493,900                                
Management Incentive Plan 2014 [Member] | With Different Striking Prices [Member]                                        
Percent of Common Stock for Distribution               5.50%           5.50%            
Management Incentive Plan 2014 [Member] | Annual Installments [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage               25.00%                        
Management Incentive Plan 2014 [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period               4 years                        
Percent of Common Stock for Distribution               2.00%           2.00%            
Equity Incentive Plan [Member] | Chief Executive Officer [Member] | Restricted Stock [Member] | General and Administrative Expense [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Granted in Period, Fair Value   $ 386,504                                    
Equity Incentive Plan [Member] | Chief Executive Officer [Member] | Restricted Stock [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | shares     325,000                                  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Granted in Period, Fair Value   $ 1,907,750                                    
Equity Incentive Plan [Member] | Chief Executive Officer [Member] | Employee Stock Option [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate                       0.00%                
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period     4 years                                  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate                       1.09%                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate                       41.60%                
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period     5 years                                  
Equity Incentive Plan [Member] | Chief Executive Officer [Member] | Exercise Price per Share Equal $5.85 Per Share [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares     325,000                                  
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares     $ 5.87                                  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Granted in Period, Fair Value                       $ 623,828                
Equity Incentive Plan [Member] | Chief Executive Officer [Member] | Exercise Price per Share Equal to $13.00 per Share [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares     325,000                                  
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares     $ 13                                  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Granted in Period, Fair Value                       200,160                
Equity Incentive Plan [Member] | Chief Executive Officer [Member] | General and Administrative Expense [Member]                                        
Allocated Share-based Compensation Expense                                   142,276    
Equity Incentive Plan [Member] | Chief Executive Officer [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Granted in Period, Fair Value                       $ 823,988                
Unspecified Employee [Member] | Restricted Stock [Member] | General and Administrative Expense [Member]                                        
Allocated Share-based Compensation Expense                                   $ 31,897    
Unspecified Employee [Member] | Restricted Stock [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | shares 100,000                                      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Grant Date Fair Value $ 392,000                                      
Unspecified Employee [Member] | Exercise Price Range 1 [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares 100,000                                      
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares $ 3.92                                      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Granted in Period, Fair Value $ 132,444                                      
Unspecified Employee [Member] | Exercise Price Range 2 [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares 100,000                                      
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares $ 13                                      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Granted in Period, Fair Value $ 20,287                                      
Unspecified Employee [Member] | General and Administrative Expense [Member]                                        
Allocated Share-based Compensation Expense 10,592                                      
Unspecified Employee [Member]                                        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Granted in Period, Fair Value $ 152,731                                      
Fair Value Assumptions, Risk Free Interest Rate 1.37%                                      
Fair Value Assumptions, Expected Volatility Rate 42.60%                                      
Fair Value Assumptions, Expected Dividend Rate 0.00%