Loans Receivable - Change in the Balances of the ALLL (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Allowance for loan losses:
Balance, beginning of period	$ 7,073	$ 5,140	$ 5,800	$ 5,426
Provision (credit) charged to expense	454	(112)	1,200	(38)
Losses charged off	(76)	(111)	(536)	(657)
Recoveries	220	547	1,207	733
Balance, end of period	7,671	5,464	7,671	5,464
Single tenant lease financing
Allowance for loan losses:
Balance, beginning of period	3,093	1,660	2,061	1,731
Provision (credit) charged to expense	429	146	1,461	75
Losses charged off	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	3,522	1,806	3,522	1,806
Residential mortgage
Allowance for loan losses:
Balance, beginning of period	933	990	985	1,008
Provision (credit) charged to expense	(132)	44	(284)	213
Losses charged off	(14)	(5)	(185)	(216)
Recoveries	130	7	401	31
Balance, end of period	917	1,036	917	1,036
Other consumer
Allowance for loan losses:
Balance, beginning of period	762	807	691	871
Provision (credit) charged to expense	15	(105)	159	4
Losses charged off	(62)	(92)	(351)	(427)
Recoveries	90	81	306	243
Balance, end of period	805	691	805	691
Home equity
Allowance for loan losses:
Balance, beginning of period	157	213	207	211
Provision (credit) charged to expense	(1)	9	(51)	11
Losses charged off	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	156	222	156	222
Commercial and industrial
Allowance for loan losses:
Balance, beginning of period	1,201	735	920	819
Provision (credit) charged to expense	29	188	310	104
Losses charged off	0	(14)	0	(14)
Recoveries	0	0	0	0
Balance, end of period	1,230	909	1,230	909
Owner-occupied commercial real estate
Allowance for loan losses:
Balance, beginning of period	439	271	345	290
Provision (credit) charged to expense	16	24	110	5
Losses charged off	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	455	295	455	295
Investor commercial real estate
Allowance for loan losses:
Balance, beginning of period	261	205	261	219
Provision (credit) charged to expense	(31)	(441)	(531)	(455)
Losses charged off	0	0	0	0
Recoveries	0	459	500	459
Balance, end of period	230	223	230	223
Construction
Allowance for loan losses:
Balance, beginning of period	227	259	330	277
Provision (credit) charged to expense	129	23	26	5
Losses charged off	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	$ 356	$ 282	$ 356	$ 282