XML 28 R18.htm IDEA: XBRL DOCUMENT v3.8.0.1
Note 6 - Share-based Compensation (Tables)
9 Months Ended
Sep. 30, 2017
Notes Tables  
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]
   
Three Months Ended September 30,
   
Nine Months Ended September 30,
 
   
2017
   
2016
   
2017
   
2016
 
Stock options and SARS
  $
345,000
    $
238,000
    $
1,092,000
    $
1,071,000
 
Restricted stock
   
80,000
     
78,000
     
243,000
     
229,000
 
Performance shares
   
121,000
     
182,000
     
319,000
     
295,000
 
Total share-based compensation expense
  $
546,000
    $
498,000
    $
1,654,000
    $
1,595,000
 
                                 
Related income tax benefit
  $
29,000
    $
28,000
    $
197,000
    $
200,000
 
Share-based Compensation, Stock Options, Activity [Table Text Block]
   
No. of
   
Weighted Average
 
   
Shares
   
Exercise Price
 
Outstanding December 31, 2016
   
825,251
    $
10.46
 
Granted
   
155,142
     
18.67
 
Exercised
   
(241,844
)    
8.60
 
Lapsed
   
(1,100
)    
5.86
 
Cancelled
   
(990
)    
13.44
 
Outstanding September 30, 2017
   
736,459
    $
12.80
 
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
Range of
Exercise Price
 
Shares
   
Weighted Average
Remaining
Contractual Life (Years)
   
Weighted Average
Exercise Price
 
$ 3.82
-
$ 5.55
   
66,000
     
2.36
    $
4.79
 
$ 5.65
-
$ 7.36
   
213,112
     
1.78
    $
6.55
 
$ 7.96
-
$10.38
   
50,400
     
4.47
    $
9.03
 
$16.35
-
$21.63
   
406,947
     
5.07
    $
17.84
 
                             
$ 3.82
-
$21.63
   
736,459
     
3.83
    $
12.80
 
Schedule of Share-based Compensation, Stock Appreciation Rights Award Activity [Table Text Block]
   
No. of
   
Weighted Average
 
   
Shares
   
Exercise Price
 
Outstanding December 31, 2016
   
325,506
    $
10.26
 
Granted
   
43,988
     
16.97
 
Exercised
   
(128,062
)    
6.87
 
Lapsed
   
-
     
-
 
Cancelled
   
-
     
-
 
Outstanding September 30, 2017
   
241,432
    $
13.28
 
Share-based Compensation, Activity [Table Text Block]
Range of
Exercise Price
 
Shares
   
Weighted Average
Remaining
Contractual Life (Years)
   
Weighted Average
Exercise Price
 
$ 5.65
-
$ 7.36
   
94,928
     
1.09
    $
6.95
 
$16.35
-
$21.63
   
146,504
     
3.17
    $
17.38
 
                             
$ 5.65
-
$21.63
   
241,432
     
2.35
    $
13.28
 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Three months ended
               
September 30,
 
SARS
   
Options
 
                 
Exercise price
               
2017
   
N/A
    $
21.63
 
2016
   
N/A
    $
16.47
 
                 
Market price
               
2017
   
N/A
    $
21.63
 
2016
   
N/A
    $
16.47
 
                 
Risk free interest rate
1
               
2017
   
N/A
     
1.8
%
2016
   
N/A
     
1.1
%
                 
Expected award life (years)
2
   
N/A
     
5
 
                 
Expected volatility
3
               
2017
   
N/A
     
37.2
%
2016
   
N/A
     
37.1
%
                 
Expected dividend yield
4
               
2017
   
N/A
     
1.8
%
2016
   
N/A
     
2.1
%
Nine months ended
                   
September 30,
 
SARS
   
Options
 
                     
Exercise price
                   
2017
  $
16.97
   
 
$16.97
-
$21.63
 
2016
  $
16.35
   
 
$16.35
-
$18.55
 
                     
Market price
                   
2017
  $
16.97
   
 
$16.97
-
$21.63
 
2016
  $
16.35
   
 
$16.35
-
$18.55
 
                     
Risk free interest rate
1
                   
2017
   
1.9
%    
1.8%
-
2.4%
 
2016
   
1.3
%    
1.1%
-
1.8%
 
                     
Expected award life (years)
2
   
5
     
5
-
10
 
                     
Expected volatility
3
                   
2017
   
36.6
%    
36.6%
-
41.4%
 
2016
   
36.5
%    
36.5%
-
40.3%
 
                     
Expected dividend yield
4
                   
2017
   
2.1
%    
1.8%
-
2.1%
 
2016
   
2.0
%    
1.8%
-
2.1%
 
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
   
No. of
   
Weighted Average
 
   
Shares
   
Exercise Price
 
Outstanding December 31, 2016
   
123,688
    $
8.94
 
Granted
   
34,619
     
16.97
 
Vested
   
(100,000
)    
7.36
 
Forfeited
   
-
     
-
 
Outstanding September 30, 2017
   
58,307
    $
16.42
 
Schedule of Nonvested Performance-based Units Activity [Table Text Block]
   
No. of
   
Weighted Average
 
   
Shares
   
Exercise Price
 
Outstanding December 31, 2016
   
101,000
    $
16.36
 
Granted
   
50,826
     
18.39
 
Vested
   
-
     
-
 
Forfeited
   
-
     
-
 
Outstanding September 30, 2017
   
151,826
    $
17.04