Loans, Net Consolidated loan portfolio (Details) (USD $)	Mar. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Consolidated Loan Portfolio [Abstract]
Outstanding Balance, Gross	$ 731,464,000	[1]	$ 728,480,000	[1]
Less allowance for loan losses	13,228,000		13,320,000		14,311,000
Net loans	718,236,000		715,160,000
Percent of Total Portfolio	100.00%	[1]	100.00%	[1]
Net of deferred loan costs	2,200,000		2,400,000
Real Estate Loans Construction [Member]
Consolidated Loan Portfolio [Abstract]
Outstanding Balance, Gross	34,977,000		36,025,000
Less allowance for loan losses	1,652,000		847,000		1,258,000
Percent of Total Portfolio	4.80%		5.00%
Real Estate Loans Secured by farmland [Member]
Consolidated Loan Portfolio [Abstract]
Outstanding Balance, Gross	17,738,000		16,578,000
Percent of Total Portfolio	2.40%		2.30%
Real Estate Loans Secured by 1 - 4 family residential [Member]
Consolidated Loan Portfolio [Abstract]
Outstanding Balance, Gross	274,566,000		273,384,000
Less allowance for loan losses	6,079,000		6,734,000		6,276,000
Percent of Total Portfolio	37.50%		37.50%
Other real estate loans [Member]
Consolidated Loan Portfolio [Abstract]
Outstanding Balance, Gross	265,993,000		260,333,000
Less allowance for loan losses	3,349,000		3,506,000		4,348,000
Percent of Total Portfolio	36.40%		35.70%
Commercial loans [Member]
Consolidated Loan Portfolio [Abstract]
Outstanding Balance, Gross	125,395,000		129,554,000
Less allowance for loan losses	1,791,000		1,890,000		2,098,000
Percent of Total Portfolio	17.10%		17.80%
Consumer loans [Member]
Consolidated Loan Portfolio [Abstract]
Outstanding Balance, Gross	12,795,000		12,606,000
Less allowance for loan losses	$ 178,000		$ 177,000		$ 196,000
Percent of Total Portfolio	1.80%		1.70%

[1] Gross loan balances at March 31, 2014 and December 31, 2013 are net of deferred loan costs of $2.2 million and $2.4 million, respectively.