Employee Benefits Stock Options Shares Rollforward (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Stock Options
Shares
Outstanding, beginning of period (in shares)	418,655
Granted (in shares)	517,478
Exercised (in shares)	226,718
Forfeited (in shares)	0
Expired (in shares)	45,960
Outstanding, end of period (in shares)	663,455	418,655
Exercisable (in shares)	145,977
Weighted- Average Exercise Price
Outstanding, beginning of period (in dollars per share)	$ 9.32
Granted (in dollars per share)	12.70
Exercised (in dollars per share)	8.58
Forfeitures (in dollars per share)	0.00
Expired (in dollars per share)	20.37
Outstanding, end of period (in dollars per share)	11.44	$ 9.32
Exercisable (in dollars per share)	$ 6.98
Outstanding, Weighted- Average Remaining Contractual Term in Years	8 years 2 months 16 days
Outstanding, Aggregate Intrinsic Value (in 000’s)	$ 524,000
Weighted- Average Remaining Contractual Term in Years, Exercisable	2 years 1 month 24 days
Aggregate Intrinsic Value (in 000’s), Exercisable	$ 524,000
2009 Stock Option and Incentive Plan
Weighted- Average Exercise Price
Options exercised, intrinsic value	1,500,000	$ 900,000	$ 1,500,000
2009 Stock Option and Incentive Plan | Stock Options
Weighted- Average Exercise Price
Compensation not yet recognized options	$ 1,600,000
Compensation cost not yet recognized period for recognition	2 years 8 days