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Stock-Based Compensation - Summary of Option Activity (Details) - Stock options
$ / shares in Units, $ in Thousands
 9 Months Ended
Sep. 30, 2015
USD ($)
$ / shares
shares
Employee and Director Options  
Options outstanding, start of year (in shares) | shares 74,200
Options granted (in shares) | shares 56,250
Options exercised (in shares) | shares 0
Options expired / forfeited (in shares) | shares (24,200)
Options outstanding, end of year (in shares) | shares 106,250
Options vested and exercisable (in shares) | shares 79,581
Weighted Average Exercise Price  
Options outstanding, start of year (in usd per share) | $ / shares $ 13.76
Options granted (in usd per share) | $ / shares 13.87
Options exercised (in usd per share) | $ / shares 0.00
Options expired / forfeited (in usd per share) | $ / shares 7.59
Options outstanding, end of year (in usd per share) | $ / shares 15.22
Options vested and exercisable, weighted average exercise price (in usd per share) | $ / shares $ 14.22
Options outstanding, intrinsic value | $ $ 0
Options exercisable, intrinsic value | $ $ 0
Options outstanding, weighted average remaining contractual term 4 years
Options exercisable, weighted average remaining contractual term 4 years 2 months 12 days