XML 178 R160.htm IDEA: XBRL DOCUMENT v3.8.0.1
EMPLOYEE STOCK COMPENSATION - Summary of Stock Options Outstanding (Details)
 12 Months Ended
Dec. 31, 2017
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options Outstanding, Number of Shares (in shares) | shares 210,973
Options Outstanding, Intrinsic Value | $ $ 1,404,705
Options Outstanding, Weighted- Average Exercise Price per Share (in dollars per share) $ 13.99
Options Outstanding, Weighted- Average Remaining Contractual Life (in years) 6 years 11 months 17 days
Options Exercisable, Number of Shares (in shares) | shares 105,541
Options Exercisable, Intrinsic Value | $ $ 630,593
Options Exercisable, Weighted-Average Exercise Price Per Share (in dollars per share) $ 14.68
Options Exercisable, Weighted-Average Remaining Contractual Life (in years) 6 years 7 months 22 days
$10.89 to $12.21  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Lower range of exercise price (in usd per share) $ 10.89
Upper range of exercise price (in usd per share) $ 12.21
Options Outstanding, Number of Shares (in shares) | shares 7,344
Options Outstanding, Intrinsic Value | $ $ 71,604
Options Outstanding, Weighted- Average Exercise Price per Share (in dollars per share) $ 10.90
Options Outstanding, Weighted- Average Remaining Contractual Life (in years) 6 years 5 months 30 days
Options Exercisable, Number of Shares (in shares) | shares 4,400
Options Exercisable, Intrinsic Value | $ $ 42,900
Options Exercisable, Weighted-Average Exercise Price Per Share (in dollars per share) $ 10.90
Options Exercisable, Weighted-Average Remaining Contractual Life (in years) 6 years 5 months 30 days
$12.21 to $13.53  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Lower range of exercise price (in usd per share) $ 12.21
Upper range of exercise price (in usd per share) $ 13.53
Options Outstanding, Number of Shares (in shares) | shares 116,000
Options Outstanding, Intrinsic Value | $ $ 853,760
Options Outstanding, Weighted- Average Exercise Price per Share (in dollars per share) $ 13.29
Options Outstanding, Weighted- Average Remaining Contractual Life (in years) 7 years 4 months 14 days
Options Exercisable, Number of Shares (in shares) | shares 32,000
Options Exercisable, Intrinsic Value | $ $ 235,520
Options Exercisable, Weighted-Average Exercise Price Per Share (in dollars per share) $ 13.29
Options Exercisable, Weighted-Average Remaining Contractual Life (in years) 7 years 4 months 14 days
$13.53 to $14.85  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Lower range of exercise price (in usd per share) $ 13.53
Upper range of exercise price (in usd per share) $ 14.85
Options Outstanding, Number of Shares (in shares) | shares 47,464
Options Outstanding, Intrinsic Value | $ $ 325,502
Options Outstanding, Weighted- Average Exercise Price per Share (in dollars per share) $ 13.79
Options Outstanding, Weighted- Average Remaining Contractual Life (in years) 6 years 6 months 28 days
Options Exercisable, Number of Shares (in shares) | shares 28,976
Options Exercisable, Intrinsic Value | $ $ 198,334
Options Exercisable, Weighted-Average Exercise Price Per Share (in dollars per share) $ 13.81
Options Exercisable, Weighted-Average Remaining Contractual Life (in years) 6 years 3 months 14 days
$14.85 to $16.17  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Lower range of exercise price (in usd per share) $ 14.85
Upper range of exercise price (in usd per share) $ 16.17
Options Outstanding, Number of Shares (in shares) | shares 16,165
Options Outstanding, Intrinsic Value | $ $ 78,239
Options Outstanding, Weighted- Average Exercise Price per Share (in dollars per share) $ 15.81
Options Outstanding, Weighted- Average Remaining Contractual Life (in years) 3 years 5 months 26 days
Options Exercisable, Number of Shares (in shares) | shares 16,165
Options Exercisable, Intrinsic Value | $ $ 78,239
Options Exercisable, Weighted-Average Exercise Price Per Share (in dollars per share) $ 15.81
Options Exercisable, Weighted-Average Remaining Contractual Life (in years) 3 years 5 months 26 days
$16.17 to $17.50  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Lower range of exercise price (in usd per share) $ 16.17
Upper range of exercise price (in usd per share) $ 17.50
Options Outstanding, Number of Shares (in shares) | shares 24,000
Options Outstanding, Intrinsic Value | $ $ 75,600
Options Outstanding, Weighted- Average Exercise Price per Share (in dollars per share) $ 17.50
Options Outstanding, Weighted- Average Remaining Contractual Life (in years) 8 years 2 months 30 days
Options Exercisable, Number of Shares (in shares) | shares 24,000
Options Exercisable, Intrinsic Value | $ $ 75,600
Options Exercisable, Weighted-Average Exercise Price Per Share (in dollars per share) $ 17.50
Options Exercisable, Weighted-Average Remaining Contractual Life (in years) 8 years 2 months 30 days