XML 41 R25.htm IDEA: XBRL DOCUMENT v3.7.0.1
Share-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2016
Share-based Compensation [Abstract]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
The fair value of each stock option granted during the year was estimated on the date of grant using the Black-Scholes option pricing model with the following weighted average assumptions:
 
 
2016
 
2015
Expected life (years)
 
4.8

 
4.9

Expected volatility
 
83
%
 
69
%
Expected dividend yield
 
—

 
—

Risk-free interest rate
 
1.4
%
 
1.7
%
Weighted average fair value of options granted during the year
 
$1.21
 
$2.70
Schedule of Share-based Compensation, Stock Options, Activity
The following table summarizes stock option activity for the year ended December 31, 2016:
 
 
 
 
 
 
Weighted
 
 
 
 
 
 
Weighted Average
 
Average Remaining
 
Aggregate Intrinsic
 
 
 Number of Shares
 
Exercise Price Per Share
 
Contractual Life (years)
 
 Value (in thousands)
Outstanding at December 31, 2015
 
286,568

 
$6.46
 
 
 
 
Granted
 
195,332

 
$1.86
 
 
 
 
Exercised
 
—

 
—

 
 
 
 
Forfeited and Expired
 
(77,914
)
 
$4.46
 
 
 
 
Outstanding at December 31, 2016
 
403,986

 
$4.62
 
8.1
 
$0
Exercisable at December 31, 2016
 
196,776

 
$6.74
 
7.0
 
$0