XML 67 R51.htm IDEA: XBRL DOCUMENT v3.19.1
Share-Based Compensation - Narrative (Details)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Nov. 30, 2017
shares
Nov. 30, 2014
shares
Dec. 31, 2018
USD ($)
company
shares
Dec. 31, 2017
USD ($)
$ / shares
shares
Dec. 31, 2016
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based compensation costs capitalized in period       $ 103 $ 106
Tax benefit from compensation expense     $ 101 270 512
Deferred tax assets, operating loss carryforwards     86,046 78,541  
Total compensation cost not yet recognized     400    
Fair value of stock options that vested during period     $ 1,200 $ 1,600 400
Vested/Paid (in shares) | shares     (330,838)    
Granted (in shares) | shares     0    
Restricted Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Period until vesting     1 year    
Granted (in dollars per share) | $ / shares       $ 1.87  
Total value of stock that vested     $ 100 $ 1,300 $ 2,400
Vested/Paid (in shares) | shares     (37,500)    
Stock Options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period     3 years    
Period until vesting     1 year    
Award expiration period     10 years    
Cash settled stock units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period     3 years    
Total value of stock that vested     $ 24 $ 59  
Vested/Paid (in shares) | shares     (323,374) (31,703)  
Granted (in shares) | shares     0    
Market Based Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Annual vesting percentage     33.33%    
Vested/Paid (in shares) | shares     (7,464)    
Granted (in shares) | shares 270,269 60,767 0    
Evaluation period (in days)     20 days    
Number of peer group companies | company     12    
Earned at end of performance period, percent       50.00%  
Restricted Stock Units (RSUs) And Market Based Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Deferred compensation share-based arrangements, liability, current       $ 300  
Prior to 2011 | Restricted Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Annual vesting percentage     25.00%    
Minimum | Market Based Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Earning percentage     0.00%    
Maximum | Market Based Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Earning percentage     200.00%    
Accounting Standards Update 2016-09          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Deferred tax assets, operating loss carryforwards       $ 4,700