Investment Securities (Details) (USD $)	3 Months Ended
	Mar. 31, 2015 item	Dec. 31, 2014	Mar. 31, 2014
Investment securities available for sale:
Amortized Cost	$ 278,278,000	$ 200,758,000	$ 203,983,000
Unrealized Gain	2,815,000	1,667,000	913,000
Unrealized Loss	(632,000)	(787,000)	(2,754,000)
Total	280,461,000	201,638,000	202,142,000
Equities held at cost, Estimated Fair Value
FHLB stock	21,900,000
FRB stock	5,400,000
Other stock	3,300,000
Additional disclosures
Excess FHLB stock with the entity repurchased by FHLB through their stock repurchase program	13,500,000
Number of inverse putable reverse repurchase of the Bank's secured by collateral	3
Value of inverse putable reverse repurchases secured by collateral	28,500,000
HOA
Additional disclosures
Value of inverse putable reverse repurchases secured by collateral	14,900,000
Municipal bonds
Investment securities available for sale:
Amortized Cost	103,997,000	88,599,000	77,062,000
Unrealized Gain	1,718,000	1,235,000	848,000
Unrealized Loss	(192,000)	(173,000)	(586,000)
Total	105,523,000	89,661,000	77,324,000
Mortgage-backed securities
Investment securities available for sale:
Amortized Cost	174,281,000	112,159,000	126,921,000
Unrealized Gain	1,097,000	432,000	65,000
Unrealized Loss	(440,000)	(614,000)	(2,168,000)
Total	174,938,000	111,977,000	124,818,000
Additional disclosures
Estimated par value of securities pledged as collateral for the Bank's inverse putable reverse repurchases	59,600,000
Fair value of securities pledged as collateral for the Bank's inverse putable reverse repurchases	$ 61,700,000