Note 15 - Earnings Per Share (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
 
 
Year ended December 31,
  
 
 
2016
 
 
2015
 
 
2014
 
Numerator:
                        
Net income attributable to Providence
   $
91,928
    $
83,696
    $
20,275
 
Less dividends on convertible preferred stock
    
(4,419
 )    
(3,935
 )    
-
 
Less accretion of convertible preferred stock discount
    
-
     
(1,071
 )    
-
 
Less income allocated to participating securities
    
(13,135
 )    
(10,691
 )    
-
 
Net income available to common stockholders
   $
74,374
    $
67,999
    $
20,275
 
                         
Continuing operations
   $
(21,251
 )   $
(29,181
 )   $
24,511
 
Discontinued operations
    
95,625
     
97,180
     
(4,236
 )
    $
74,374
    $
67,999
    $
20,275
 
                         
Denominator:
                        
Denominator for basic earnings per share -- weighted-average shares
    
14,666,896
     
15,960,905
     
14,765,303
 
Effect of dilutive securities:
                        
Common stock options
   
-
     
-
     
236,538
 
Performance-based restricted stock units
    
-
     
-
     
16,720
 
Denominator for diluted earnings per share -- adjusted weighted-average shares assumed conversion
    
14,666,896
     
15,960,905
     
15,018,561
 
                         
Basic earnings (loss) per share:
                        
Continuing operations
   $
(1.45
 )   $
(1.83
 )   $
1.66
 
Discontinued operations
    
6.52
     
6.09
     
(0.29
 )
    $
5.07
    $
4.26
    $
1.37
 
Diluted earnings (loss) per share:
                        
Continuing operations
   $
(1.45
 )   $
(1.83
 )   $
1.63
 
Discontinued operations
    
6.52
     
6.09
     
(0.28
 )
    $
5.07
    $
4.26
    $
1.35
 
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
 
 
Year ended December 31,
 
 
 
2016
 
 
2015
 
 
2014
 
Stock options to purchase common stock
    
22,638
      
173,925
     
92,054
 
Convertible preferred stock
    
803,442
      
700,241
     
-