Summary of Stock Activity (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) Years $ / shares shares	Dec. 31, 2017 USD ($) Years $ / shares shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Options outstanding | shares	174,510	174,510
Options granted | shares	0
Options exercised | shares	0
Options outstanding weighted average exercise price | $ / shares	$ 28.70	$ 28.70
Options outstanding weighted average exercise price - Granted | $ / shares	0
Options outstanding weighted average exercise price - Exercised | $ / shares	$ 0
Options outstanding weighted average remaining term | Years	5.8	6.0
Options outstanding weighted average grant date fair value | $	$ 1,901	$ 1,901
Options granted weighted average grant date fair value | $	0
Options exercised weighted average grant date fair value | $	$ 0
Options exercisable at March 31, 2018 | shares	130,827
Options exerciseable weighted average exercise price | $ / shares	$ 25.74
Options exerciseable weighted average remaining term | Years	4.9
Options vested weighted average grant date fair value | $	$ 15
Options vested during three months ended March 31, 2018 | shares	911
Options exercisable weighted average grant date fair value | $	$ 1,238