Stock Compensation Plans, Information on Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Additional disclosures [Abstract]
Options exercised, number of shares (in shares)	20,640
Option exercised, weighted average exercise price (in dollars per share)	$ 4.06
Option exercised, aggregate intrinsic value	$ 65
Stock options outstanding and expected to vest, number of shares (in shares)	227,384
Stock options outstanding and expected to vest, weighted average exercise price (in dollars per share)	$ 10.72
Stock options outstanding and expected to vest, aggregate intrinsic value	$ 273
Stock options outstanding and expected to vest, weighted average remaining contractual term	4 years 4 months 17 days
Stock options vested and currently exercisable, number of shares) (in shares)	152,870
Stock options vested and currently exercisable, weighted average exercise price (in dollars per share)	$ 12.68
Stock options vested and currently exercisable, aggregate intrinsic value	$ 185
Stock options vested and currently exercisable, weighted average remaining contractual term	2 years 4 months 28 days
Stock Options [Member]
Additional disclosures [Abstract]
Options exercised, number of shares (in shares)	(20,640)
Option exercised, weighted average exercise price (in dollars per share)	$ 4.06
Weighted average fair value per share of options granted (in dollars per share)	2.56	$ 2.79	$ 2.46
Exercise price range, lower range limit (in dollars per share)	3.71
Exercise price range, upper range limit (in dollars per share)	$ 18.26
Unrecognized compensation related to non-vested stock options	$ 134
Unrecognized compensation cost, period for recognition	2 years 7 months 6 days
Recognized compensation cost	$ 63	$ 48	$ 39