Loans and Allowance - Activity in allowance for loan losses (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Allowance for Loan and Lease Losses [Roll Forward]
Balances at beginning of period			$ 3,564
Provision for loan losses	318	322	636	796
Balances at end of period	4,036		4,036
Loans Receivable
Allowance for Loan and Lease Losses [Roll Forward]
Balances at beginning of period	3,884	3,178	3,564	4,003
Provision for loan losses	318	322	636	796
Loans charged off	(202)	(65)	(534)	(1,375)
Recoveries on loans	36	86	370	97
Balances at end of period	4,036	3,521	4,036	3,521
Loans Receivable | Construction / Land
Allowance for Loan and Lease Losses [Roll Forward]
Balances at beginning of period	757	430	649	1,016
Provision for loan losses	(84)	304	67	54
Loans charged off			(61)	(340)
Recoveries on loans			18	4
Balances at end of period	673	734	673	734
Loans Receivable | 1-4 Family
Allowance for Loan and Lease Losses [Roll Forward]
Balances at beginning of period	1,534	1,472	1,423	1,986
Provision for loan losses	305	(115)	482	286
Loans charged off	(21)	(46)	(87)	(962)
Recoveries on loans	3	79	3	80
Balances at end of period	1,821	1,390	1,821	1,390
Loans Receivable | Multi-Family
Allowance for Loan and Lease Losses [Roll Forward]
Balances at beginning of period	278	17	281	65
Provision for loan losses	19	266	16	218
Loans charged off
Recoveries on loans
Balances at end of period	297	283	297	283
Loans Receivable | Nonresidential and agricultural land
Allowance for Loan and Lease Losses [Roll Forward]
Balances at beginning of period	1,179	1,226	1,077	822
Provision for loan losses	(97)	(135)	(114)	298
Loans charged off			(175)	(29)
Recoveries on loans	20		314
Balances at end of period	1,102	1,091	1,102	1,091
Loans Receivable | Commercial
Allowance for Loan and Lease Losses [Roll Forward]
Balances at beginning of period	135	6	132	70
Provision for loan losses	144	2	146	(62)
Loans charged off	(138)		(137)
Recoveries on loans
Balances at end of period	141	8	141	8
Loans Receivable | Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Balances at beginning of period	1	27	2	44
Provision for loan losses	31		39	2
Loans charged off	(43)	(19)	(74)	(44)
Recoveries on loans	13	7	35	13
Balances at end of period	$ 2	$ 15	$ 2	$ 15