XML 45 R34.htm IDEA: XBRL DOCUMENT v3.8.0.1
Significant Accounting Policies - Stock Transactions - Stock Options Outstanding And Exercisable (Details)
9 Months Ended
Sep. 30, 2017
$ / shares
shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Options Outstanding: Shares Outstanding | shares 534,090
Options Outstanding: Weighted Average Remaining Contractual Life 5 years 9 months 18 days
Options Outstanding: Weighted Average Exercise Price (in dollars per share) $ 8.22
Options Exercisable: Shares Exercisable | shares 363,264
Options Exercisable: Weighted Average Exercise Price (in dollars per share) $ 6.25
0.00 - 4.00  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, lower (in dollars per share) 0.00
Range of exercise prices, upper (in dollars per share) $ 4.00
Options Outstanding: Shares Outstanding | shares 77,000
Options Outstanding: Weighted Average Remaining Contractual Life 1 year 4 months 24 days
Options Outstanding: Weighted Average Exercise Price (in dollars per share) $ 3.51
Options Exercisable: Shares Exercisable | shares 77,000
Options Exercisable: Weighted Average Exercise Price (in dollars per share) $ 3.51
4.01 - 8.00  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, lower (in dollars per share) 4.01
Range of exercise prices, upper (in dollars per share) $ 8.00
Options Outstanding: Shares Outstanding | shares 214,390
Options Outstanding: Weighted Average Remaining Contractual Life 4 years 4 months 24 days
Options Outstanding: Weighted Average Exercise Price (in dollars per share) $ 6.23
Options Exercisable: Shares Exercisable | shares 214,390
Options Exercisable: Weighted Average Exercise Price (in dollars per share) $ 6.23
8.01 - 12.00  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, lower (in dollars per share) 8.01
Range of exercise prices, upper (in dollars per share) $ 12.00
Options Outstanding: Shares Outstanding | shares 166,100
Options Outstanding: Weighted Average Remaining Contractual Life 8 years 1 month 6 days
Options Outstanding: Weighted Average Exercise Price (in dollars per share) $ 9.52
Options Exercisable: Shares Exercisable | shares 71,874
Options Exercisable: Weighted Average Exercise Price (in dollars per share) $ 9.27
12.01 - 16.00  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, lower (in dollars per share) 12.01
Range of exercise prices, upper (in dollars per share) $ 16.00
Options Outstanding: Shares Outstanding | shares 46,600
Options Outstanding: Weighted Average Remaining Contractual Life 9 years 2 months 12 days
Options Outstanding: Weighted Average Exercise Price (in dollars per share) $ 15.00
Options Exercisable: Shares Exercisable | shares 0
Options Exercisable: Weighted Average Exercise Price (in dollars per share) $ 0.00
16.01 - 20.00  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, lower (in dollars per share) 16.01
Range of exercise prices, upper (in dollars per share) $ 20.00
Options Outstanding: Shares Outstanding | shares 30,000
Options Outstanding: Weighted Average Remaining Contractual Life 9 years 4 months 24 days
Options Outstanding: Weighted Average Exercise Price (in dollars per share) $ 16.75
Options Exercisable: Shares Exercisable | shares 0
Options Exercisable: Weighted Average Exercise Price (in dollars per share) $ 0.00