Fair Value of Financial Instruments (Details 3) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
Carrying values and estimated fair values of financial instruments:
Prepayments of principal amount of loans assumed	$ 0
Financial assets:
Cash and cash equivalents	62,509	39,843	48,482	25,340
Certificates of deposits in other banks	9,427	9,427
Securities available-for-sale	71,392	106,411
Securities held-to-maturity	56,328	54,118
Financial liabilities:
FHLB and other borrowings	55,465	104,647
Fair Value, Inputs, Level 1 [Member]
Financial assets:
Cash and cash equivalents	62,509	39,843
Securities available-for-sale	220	187
Fair Value, Inputs, Level 2 [Member]
Financial assets:
Certificates of deposits in other banks	9,523	9,616
Securities available-for-sale	71,172	106,224
Securities held-to-maturity	56,328	54,118
Loans held for sale	50,616	89,186
Derivative on loans held for sale	1,014
Accrued interest receivable	2,808	2,764
Financial liabilities:
Deposits	847,690	697,301
Repurchase agreements	33,894	81,578
FHLB and other borrowings	55,490	104,742
Accrued interest payable	348	327
Subordinated debt	31,172	4,124
Fair Value, Inputs, Level 3 [Member]
Financial assets:
Loans, net	764,194	620,295
Derivative on loans held for sale	1,805	2,271
Reported Value Measurement [Member]
Financial assets:
Cash and cash equivalents	62,509	39,843
Certificates of deposits in other banks	9,427	9,427
Securities available-for-sale	71,392	106,411
Securities held-to-maturity	55,633	56,670
Loans held for sale	50,616	89,186
Loans, net	756,562	617,370
Derivative on loans held for sale	2,819	2,271
Accrued interest receivable	2,808	2,764
Financial liabilities:
Deposits	846,321	695,811
Repurchase agreements	33,894	81,578
FHLB and other borrowings	55,465	104,647
Accrued interest payable	348	327
Subordinated debt	33,524	4,124
Estimate of Fair Value Measurement [Member]
Financial assets:
Cash and cash equivalents	62,509	39,843
Certificates of deposits in other banks	9,523	9,616
Securities available-for-sale	71,392	106,411
Securities held-to-maturity	56,328	54,118
Loans held for sale	50,616	89,186
Loans, net	764,194	620,295
Derivative on loans held for sale	2,819	2,271
Accrued interest receivable	2,808	2,764
Financial liabilities:
Deposits	847,690	697,301
Repurchase agreements	33,894	81,578
FHLB and other borrowings	55,490	104,742
Accrued interest payable	348	327
Subordinated debt	$ 31,172	$ 4,124