XML 64 R53.htm IDEA: XBRL DOCUMENT v3.7.0.1
Stock Incentive Plan - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares of authorized stock for stock incentive plan (in shares) 350,000   350,000  
Stock-based compensation expense     $ 279,000 $ 377,000
Exercises of stock options (in shares)   0   0
Options granted (in shares)     3,775 0
Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share based compensation options contractual term     10 years  
Stock incentive plan vesting period, years     3 years  
Stock-based compensation expense $ 34,000 $ 51,000 $ 66,000 $ 87,000
Exercise of stock options (in shares) 814   12,789  
Shares withheld for stock option exercises and related income taxes, amount withheld $ 74,000   $ 1,000,000  
Cash Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Proceeds from stock option exercises 0   0  
Cashless Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Proceeds from stock option exercises 62,000   $ 862,000  
Restricted Stock Units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock incentive plan vesting period, years     3 years  
Stock-based compensation expense $ 118,000 $ 165,000 $ 214,000 $ 290,000
Restricted units granted (in shares)     2,337 0