Parent Company Only Financial Information (Interim Condensed Statements of Cash Flows) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Operating activities
Net income	$ 3,407	$ 4,098	$ 6,424	$ 7,771
Adjustments to reconcile net income to cash provided by operations
Share-based payment awards			273	259
Depreciation			1,438	1,272
Net amortization of AFS securities			1,427	986
Changes in operating assets and liabilities which used cash
Other assets			(667)	(1,765)
Accrued interest and other liabilities			(238)	126
Net cash provided by (used in) operating activities			8,833	7,544
Investing activities
Purchases of equipment and premises			(1,351)	(1,546)
Net cash provided by (used in) investing activities			(1,658)	(28,110)
Financing activities
Net increase (decrease) in other borrowed funds			8,864	17,890
Cash dividends paid on common stock			(3,744)	(3,557)
Proceeds from the issuance of common stock			2,489	2,192
Common stock repurchased			(1,462)	(1,704)
Common stock purchased for deferred compensation obligations			(164)	(165)
Net cash provided by (used in) financing activities			(1,710)	30,641
Increase (decrease) in cash and cash equivalents			5,465	10,075
Cash and cash equivalents at beginning of period			21,569	19,906
Cash and cash equivalents at end of period	27,034	29,981	27,034	29,981
Parent Company [Member]
Operating activities
Net income	3,407	4,098	6,424	7,771
Adjustments to reconcile net income to cash provided by operations
Undistributed earnings of subsidiaries			(3,674)	(5,369)
Undistributed earnings of equity securities without readily determinable fair values			(141)	(65)
Share-based payment awards			273	259
Depreciation			81	74
Changes in operating assets and liabilities which used cash
Other assets			108	364
Accrued interest and other liabilities			(1,692)	(33)
Net cash provided by (used in) operating activities			1,379	3,001
Investing activities
Proceeds from Sale and Maturity of Available-for-sale Securities			0	3,000
Purchases of equipment and premises			(69)	(105)
Net cash provided by (used in) investing activities			(69)	2,895
Financing activities
Net increase (decrease) in other borrowed funds			0	(211)
Cash dividends paid on common stock			(3,744)	(3,557)
Proceeds from the issuance of common stock			2,489	2,192
Common stock repurchased			(1,462)	(1,704)
Common stock purchased for deferred compensation obligations			(164)	(165)
Net cash provided by (used in) financing activities			(2,881)	(3,445)
Increase (decrease) in cash and cash equivalents			(1,571)	2,451
Cash and cash equivalents at beginning of period			4,125	1,035
Cash and cash equivalents at end of period	$ 2,554	$ 3,486	$ 2,554	$ 3,486