XML 60 R49.htm IDEA: XBRL DOCUMENT v3.19.2
Stock-Based Compensation - Additional Information (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 15, 2019
Apr. 02, 2019
Mar. 20, 2019
Feb. 01, 2019
Jan. 21, 2019
Jun. 15, 2018
May 31, 2019
Mar. 31, 2018
May 31, 2017
May 31, 2016
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Apr. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Share-based compensation expense                       $ 0 $ 0 $ 0 $ 0  
Fair value of purchase rights $ 0.69                              
2006 Plan                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Shares authorized (in shares)                     4,500,000         3,500,000
Additional shares authorized (in shares)               2,000,000   2,000,000 1,000,000          
Expiration period                           10 years    
Shares available to be issued (in shares) 3,318,657                     3,318,657   3,318,657    
Stock options outstanding (in shares) 22,439                     22,439   22,439    
Shares of restricted stock outstanding (in shares) 1,378,300                     1,378,300   1,378,300    
Management Stock Purchase Plan                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Maximum amount of cash compensation allowed towards purchase of stock                 20.00%              
Maximum amount of cash compensation allowed towards purchase of stock, amount   $ 300,000             $ 200,000              
Holding period                 2 years              
Shares available for grant                 50.00%              
Employee Stock Purchase Plan                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Shares authorized (in shares)             800,000                  
Share-based compensation expense                       $ 6,000 1,000 $ 13,000 1,000  
Purchase price per share of common stock             85.00%                  
Common stock available for issuance 771,688                     771,688   771,688    
Restricted Stock                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Share-based compensation expense                       $ 814,000 556,000 $ 1,617,000 1,162,000  
Shares of restricted stock (in shares)     10,941 27,987 13,423 672,300                    
Restricted stock awards (in usd per share)     $ 4.57 $ 5.36 $ 5.96 $ 6.19                    
Share vest anniversaries                           3 years    
Forfeiture adjustment reduced stock-based compensation expense                       25,000 $ 23,000 $ 34,000 27,000  
Unrecognized compensation expense $ 5,449,000                     $ 5,449,000   $ 5,449,000    
Restricted stock award, weighted-average period                           2 years 1 month 21 days    
Common Stock Grants                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Share-based compensation expense                           $ 320,000 $ 320,000  
Common stock issued to members (in shares)         53,692                      
Fair value of shares issued (in dollars per share)         $ 5.96                      
Minimum | 2006 Plan                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Shares authorized (in shares)                   6,500,000            
Maximum | 2006 Plan                                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Shares authorized (in shares)               8,500,000