Shareholders' Equity (Narrative) (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) installment Plan shares	Dec. 31, 2015 USD ($) shares	Dec. 31, 2014 USD ($) shares	Apr. 26, 2001 shares
Number of equity incentive plans | Plan	3
Share-based compensation, number of shares available for future grants | shares	274,736
Stock option expiration period	10 years
Number of options granted (in shares) | shares	0
Unrecognized expense related to restricted stock and cash entitlements | $	$ 1,774,000	$ 1,542,000	$ 1,516,000
Stock compensation expense | $	570,000	580,000	393,000
Stock compensation expense, net of tax | $	$ 1,195,000	$ 928,000	$ 607,000
Common stock, authorized shares repurchase (in shares) | shares				607,754
Total shares repurchased (in shares) | shares	334,965
Common stock, shares repurchased (in shares) | shares	0	0	0
Bank
Retained earnings available for payment of dividends to parent company without prior regulatory approval | $	$ 35,000,000
Nonqualified Stock Options
Stock option expiration period	20 years
Employee Stock Option
Number of options granted (in shares) | shares	0	0	0
Stock compensation expense | $	$ 0	$ 0	$ 0
Restricted Stock
Restricted stock as a percent of grant	60.00%
Cash credit entitlements as a percent of grant	40.00%
Number of installments | installment	3
Restricted stock vesting percentage upon satisfaction of service requirement	100.00%
Employee Stock Purchase Plan
Share-based compensation, number of shares available for future grants | shares	384,951
Unrecognized expense related to restricted stock and cash entitlements | $	$ 0
Share-based compensation arrangement, purchase price discount from fair market value	95.00%
Share-based compensation arrangement, number of shares authorized (in shares) | shares	500,000
Stock compensation expense | $	$ 82,000	22,000	0
Stock compensation expense, net of tax | $	$ 50,000	$ 13,000	$ 0
Year One | Restricted Stock
Percentage vested	33.33%
Year Two | Restricted Stock
Percentage vested	33.33%
Year Three | Restricted Stock
Percentage vested	33.33%