Stock Option Plan (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Stock Option Plan [Abstract]
Options maximum term period	10 years
Shares [Roll Forward]
Options outstanding, beginning of period (in shares)	74,960
Granted (in shares)	0	0
Exercised (in shares)	(1,250)
Canceled or expired (in shares)	(13,105)
Options outstanding, end of period (in shares)	60,605	74,960
Options exercisable, end of period (in shares)	60,605
Weighted Average Exercise Price [Roll Forward]
Options outstanding, beginning of period (in dollars per share)	$ 20.05
Granted (in dollars per share)	0
Exercised (in dollars per share)	20.05
Canceled or expired (in dollars per share)	20.05
Options outstanding, end of period (in dollars per share)	20.05	$ 20.05
Options exercisable, end of period (in dollars per share)	$ 20.05
Weighted Average Remaining Contractual Life (in years) [Abstract]
Options outstanding, end of period	9 months 14 days
Options exercisable, end of period	9 months 14 days
Aggregate Intrinsic Value [Abstract]
Options outstanding, end of period	$ 300
Options exercisable, end of period	300
Cash Received From Exercise of Stock Options	$ 25	$ 0
Common Stock, Capital Shares Reserved for Future Issuance	249,001	0
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	999	0
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date	5.00%	0.00%
20.05 [Member]
Information pertaining to options outstanding [Abstract]
Range of Exercise Prices (in dollars per share)	$ 20.05
Options Outstanding, Number Outstanding (in shares)	60,605
Options Outstanding, Weighted Average Remaining Contractual Life	9 months 14 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 20.05
Options Exercisable, Number Exercisable (in shares)	60,605
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 20.05