First Priority Financial 10-Q 13 Nov 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Nov. 05, 2013
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-13	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'
Trading Symbol	'CK0001389772	'
Entity Registrant Name	'FIRST PRIORITY FINANCIAL CORP.	'
Entity Central Index Key	'0001389772	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Smaller Reporting Company	'
Entity Common Stock, Shares Outstanding	'	6,349,494

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Assets	'	'
Cash and due from banks	$5,638	$4,841
Interest-bearing deposits in banks	13,444	6,175
Total cash and cash equivalents	19,082	11,016
Securities available for sale, at fair value (amortized cost: $56,607 and $15,996, respectively)	55,691	16,679
Securities held to maturity, at amortized cost (fair value: $10,428 and $0, respectively)	11,005	'
Loans receivable	332,197	244,275
Less: allowance for loan losses	2,236	2,460
Net loans	329,961	241,815
Restricted investments in bank stocks	2,461	1,337
Premises and equipment, net	2,553	901
Accrued interest receivable	1,423	1,040
Other real estate owned	907	184
Goodwill	2,725	1,194
Intangible assets with finite lives	520	'
Other assets	1,039	980
Total Assets	427,367	275,146
Liabilities	'	'
Non-interest bearing	38,070	28,176
Interest-bearing	302,765	204,867
Total deposits	340,835	233,043
Short-term borrowings	26,875	'
Long-term debt	11,000	13,000
Accrued interest payable	372	378
Other liabilities	6,057	1,015
Total Liabilities	385,139	247,436
Shareholders' Equity	'	'
Common stock, $1 par value; authorized 10,000,000 shares; issued and outstanding: 2013: 6,331,771; 2012: 3,144,053	6,332	3,144
Surplus	39,757	26,230
Accumulated deficit	-12,594	-11,689
Accumulated other comprehensive income (loss)	-649	683
Total Shareholders' Equity	42,228	27,710
Total Liabilities and Shareholders' Equity	427,367	275,146
Series A Preferred Stock [Member]	'	'
Shareholders' Equity	'	'
Preferred stock, value	4,557	4,513
Series B Preferred Stock [Member]	'	'
Shareholders' Equity	'	'
Preferred stock, value	231	236
Series C Preferred Stock [Member]	'	'
Shareholders' Equity	'	'
Preferred stock, value	$4,594	$4,593

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Amortized Cost	$56,607	$15,996
Fair value	10,428	0
Preferred Stock, par value	$100	$100
Preferred stock, authorized shares	10,000,000	10,000,000
Preferred stock, liquidation value per share	$1,000	$1,000
Common stock, par value	$1	$1
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	6,331,771	3,144,053
Common stock, shares outstanding	6,331,771	3,144,053
Series A Preferred Stock [Member]	'	'
Preferred stock, dividend rate	5.00%	5.00%
Preferred stock, shares issued	4,579	4,579
Preferred stock, shares outstanding	4,579	4,579
Preferred Stock, total liquidation value	4,579	4,579
Series B Preferred Stock [Member]	'	'
Preferred stock, dividend rate	9.00%	9.00%
Preferred stock, shares issued	229	229
Preferred stock, shares outstanding	229	229
Preferred Stock, total liquidation value	229	229
Series C Preferred Stock [Member]	'	'
Preferred stock, dividend rate	5.00%	5.00%
Preferred stock, shares issued	4,596	4,596
Preferred stock, shares outstanding	4,596	4,596
Preferred Stock, total liquidation value	$4,596	$4,596

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Interest Income	'	'	'	'
Loans receivable, including fees	$4,224	$3,104	$12,115	$9,299
Securities-taxable	323	167	714	541
Securities-exempt from federal taxes	28	31	84	64
Interest bearing deposits and other	20	2	47	5
Total Interest Income	4,595	3,304	12,960	9,909
Interest Expense	'	'	'	'
Deposits	745	791	2,263	2,549
Short-term borrowings	9	4	11	6
Long-term debt	25	36	120	180
Total Interest Expense	779	831	2,394	2,735
Net Interest Income	3,816	2,473	10,566	7,174
Provision for Loan Losses	230	80	570	410
Net Interest Income after Provision for Loan Losses	3,586	2,393	9,996	6,764
Non-Interest Income	'	'	'	'
Wealth management fee income	158	71	273	200
Gains on sales of investment securities	'	57	'	422
Other	95	39	258	129
Total Non-Interest Income	253	167	531	751
Non-Interest Expenses	'	'	'	'
Salaries and employee benefits	1,788	1,326	5,129	4,048
Occupancy and equipment	541	269	1,475	785
Data processing equipment and operations	250	140	661	385
Professional fees	219	122	573	382
Marketing, advertising, and business development	39	10	149	52
FDIC insurance assessments	94	62	259	192
Pennsylvania bank shares tax expense	101	57	277	170
Collateral protection expense	'	'	'	168
Merger related costs	324	185	1,534	328
Other real estate owned	118	'	280	'
Other	278	171	696	454
Total Non-Interest Expenses	3,752	2,342	11,033	6,964
Net Income (Loss)	87	218	-506	551
Preferred dividends, including net amortization	133	132	399	399
Income (loss) to Common Shareholders	($46)	$86	($905)	$152
Income (loss) per common share:	'	'	'	'
Basic	($0.01)	$0.03	($0.16)	$0.05
Diluted	($0.01)	$0.03	($0.16)	$0.05
Weighted average common shares outstanding	'	'	'	'
Basic	6,332	3,144	5,641	3,144
Diluted	6,332	3,152	5,641	3,157

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Loss) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Amounts Reclassified Out Of Accumulated Other Comprehensive Income Loss [Abstract]	'	'	'	'
Net income (loss)	$87	$218	($506)	$551
Securities available for sale:	'	'	'	'
Net unrealized gains (losses) arising during the period	1	128	-1,599	-189
Reclassification adjustment for realized gains included in net income	'	57	'	422
Net unrealized gains (losses) on securities available for sale	1	185	-1,599	233
Net unrealized holding gains (losses) on securities transferred between available for sale and held to maturity:	'	'	'	'
Reclassification adjustment for net unrealized holding gains on securities transferred	'	'	293	'
Amortization of net unrealized holding gains (losses) to income during the period	-21	'	-26	'
Net unrealized holding gains (losses) on securities transferred during the period	-21	'	267	'
Total other comprehensive income (loss)	-20	185	-1,332	233
Total comprehensive income (loss)	$67	$403	($1,838)	$784

Consolidated_Statements_of_Sha

Consolidated Statements of Shareholders' Equity (USD $)

Total

Affinity Bancorp, Inc. [Member]

Private Placement [Member]

Preferred Stock [Member]

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Surplus [Member]

Surplus [Member]

Surplus [Member]

Surplus [Member]

Accumulated Deficit [Member]

Accumulated Other Comprehensive Income (loss) [Member]

In Thousands

Affinity Bancorp, Inc. [Member]

Private Placement [Member]

Restricted Stock [Member]

Affinity Bancorp, Inc. [Member]

Private Placement [Member]

Restricted Stock [Member]

Beginning balance at Dec. 31, 2011

$27,444

'

'

$9,289

$3,142

'

'

'

$26,062

'

'

'

($11,910)

$861

Preferred stock dividends

-359

'

'

'

'

'

'

'

'

'

'

'

-359

'

Net amortization on preferred stock

'

'

'

40

'

'

'

'

'

'

'

'

-40

'

Issuance of restricted common stock

'

'

'

'

'

'

'

2

'

'

'

-2

'

'

Net income (loss)

551

'

'

'

'

'

'

'

'

'

'

'

551

'

Other comprehensive income (loss)

233

'

'

'

'

'

'

'

'

'

'

'

'

233

Stock options expense

136

'

'

'

'

'

'

'

136

'

'

'

'

'

Ending balance at Sep. 30, 2012

28,005

'

'

9,329

3,144

'

'

'

26,196

'

'

'

-11,758

1,094

Beginning balance at Jun. 30, 2012

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred stock dividends

-119

'

'

'

'

'

'

'

'

'

'

'

'

'

Net amortization on preferred stock

'

'

'

13

'

'

'

'

'

'

'

'

'

'

Net income (loss)

218

'

'

'

'

'

'

'

'

'

'

'

'

'

Ending balance at Sep. 30, 2012

28,005

'

'

9,329

3,144

'

'

'

'

'

'

'

'

'

Beginning balance at Dec. 31, 2012

27,710

'

'

9,342

3,144

'

'

'

26,230

'

'

'

-11,689

683

Preferred stock dividends

-359

'

'

'

'

'

'

'

'

'

'

'

-359

'

Net amortization on preferred stock

'

'

'

40

'

'

'

'

'

'

'

'

-40

'

Issuance of restricted common stock

'

'

'

'

'

'

'

4

'

'

'

-4

'

'

Issuance of 1,268,576 shares of common stock in private placement

'

'

6,572

'

'

'

1,268

'

'

'

5,304

'

'

'

Issuance of 1,915,942 shares of common stock in merger with Affinity Bancorp, Inc.

'

10,046

'

'

'

1,916

'

'

'

8,130

'

'

'

'

Cash in lieu of fractional shares for merger with Affinity Bancorp, Inc.

'

-1

'

'

'

'

'

'

'

-1

'

'

'

'

Net income (loss)

-506

'

'

'

'

'

'

'

'

'

'

'

-506

'

Other comprehensive income (loss)

-1,332

'

'

'

'

'

'

'

'

'

'

'

'

-1,332

Stock options expense

98

'

'

'

'

'

'

'

98

'

'

'

'

'

Ending balance at Sep. 30, 2013

42,228

'

'

9,382

6,332

'

'

'

39,757

'

'

'

-12,594

-649

Beginning balance at Jun. 30, 2013

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred stock dividends

-119

'

'

'

'

'

'

'

'

'

'

'

'

'

Net amortization on preferred stock

'

'

'

14

'

'

'

'

'

'

'

'

'

'

Net income (loss)

87

'

'

'

'

'

'

'

'

'

'

'

'

'

Ending balance at Sep. 30, 2013

$42,228

'

'

$9,382

$6,332

'

'

'

'

'

'

'

'

'

Consolidated_Statements_of_Sha1

Consolidated Statements of Shareholders' Equity (Parenthetical)(Common Stock [Member])	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013
	Private Placement [Member]	Restricted Stock [Member]	Restricted Stock [Member]	Affinity Bancorp, Inc. [Member]
Issuance of restricted common stock, shares	'	3,475	1,875	'
Issuance of common stock, shares	1,268,576	'	'	1,915,942

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Cash Flows from Operating Activities	'	'
Net income (loss)	($506)	$551
Adjustments to reconcile net income (loss) to net cash provided by operating activities:	'	'
Provision for Loan Losses	570	410
Provision for foreclosed asset losses	121	56
Depreciation and amortization	278	190
Net (accretion) amortization of securities premiums	-204	47
Stock based compensation expense	98	136
Gains on sales of investment securities	'	-422
Gains (losses) on sales of other real estate	6	'
Increase (decrease) in accrued interest receivable	14	-67
Increase in other assets	279	36
Decrease in accrued interest payable	-201	-53
Increase in other liabilities	592	433
Net Cash Provided by Operating Activities	1,047	1,317
Cash Flows from Investing Activities	'	'
Net increase in loans	-11,089	-4,288
Purchases of securities available for sale	-33,042	-11,262
(Purchase)/Redemption of restricted stock	-26	-70
Proceeds from maturities or calls of securities available for sale	16,873	7,555
Proceeds from the sale of securities available for sale	1,938	5,096
Proceeds related to receivables for investment securities sold	33,630	'
Proceeds from the sale of other real estate owned	494	'
Net decrease of premises and equipment	-62	-92
Net cash received from acquisition	24,419	'
Net Cash Provided by (Used in) Investing Activities	33,135	-3,061
Cash Flows from Financing Activities	'	'
Net decrease in deposits	-42,846	-15,551
Net increase in short-term borrowings	26,875	5,530
Increase (Decrease) in long-term debt	-16,358	5,000
Proceeds from issuance of common stock	6,572	'
Cash dividends paid on preferred stock	-359	-359
Net Cash Used in Financing Activities	-26,116	-5,380
Net Increase (Decrease) in Cash and Cash Equivalents	8,066	-7,124
Cash and Cash Equivalents-Beginning	11,016	16,218
Cash and Cash Equivalents-Ending	19,082	9,094
Supplementary Disclosures of Cash Flows Information	'	'
Trade date accounting for investment securities purchases	4,175	'
Receivable on investment security calls	'	1,337
Transfer of available for sale securities to held to maturity securities	11,166	'
Cash paid for interest on deposits and borrowings	2,860	2,788
Cash paid for income taxes	'	$47

Summary_of_Significant_Account

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	Note 1—Summary of Significant Accounting Policies
	Organization and Nature of Operations
	First Priority Financial Corp.
	First Priority Financial Corp. (“First Priority”, the “Company”) was incorporated under the laws of the Commonwealth of Pennsylvania on February 13, 2007, for the purpose of becoming the holding company of First Priority Bank (the “Bank”) and had no prior operating history. On May 11, 2007, as a result of a reorganization and merger where each outstanding share of First Priority Bank common stock and each outstanding warrant to acquire a share of First Priority Bank common stock were converted into one share of First Priority common stock and one warrant to acquire First Priority common stock, First Priority Bank became a wholly- owned subsidiary of First Priority.
	On February 29, 2008, First Priority acquired Prestige Community Bank (“Prestige”) and Prestige merged with and into First Priority Bank.
	On May 23, 2012, First Priority and Affinity Bancorp, Inc. (“Affinity”), the holding company for Affinity Bank of PA (“Affinity Bank”), jointly announced a definitive agreement to merge their respective holding companies and bank subsidiaries. Subsequently, on February 28, 2013, the merger with Affinity was completed. Total assets acquired as a result of the merger were $175.9 million, including $77.4 million in loans, and deposits of $150.9 million. Affinity operated five branch offices within the Berks County, Pennsylvania market. Under the terms of the merger agreement, shareholders of Affinity received 0.9813 newly issued shares of First Priority in exchange for each Affinity share. A total of 1,915,942 shares of First Priority common stock were issued in connection with the merger. Also, in conjunction with the completion of the merger, the Company also issued 1,268,576 shares of First Priority common stock as part of a private placement offering resulting in incremental net equity proceeds of $6.6 million.
	First Priority provides banking services through First Priority Bank and does not engage in any activities other than banking and related activities. As of September 30, 2013, First Priority had total assets of $427.4 million and total shareholders’ equity of $42.2 million.
	First Priority Bank
	First Priority Bank is a state-chartered commercial banking institution which was incorporated under the laws of the Commonwealth of Pennsylvania on May 25, 2005. First Priority Bank’s deposits are insured by the FDIC up to the maximum amount permitted for all banks. As of September 30, 2013, First Priority Bank had total assets of $427.3 million, total loans of $332.2 million, total deposits of $341.9 million and total shareholder’s equity of $41.5 million.
	First Priority Bank engages in a full service commercial and consumer banking business with strong private banking and individual wealth management services. First Priority Bank offers a variety of consumer, private banking and commercial loans, mortgage products and commercial real estate financing. First Priority Bank does not engage in sub-prime lending. The Company’s operations are significantly affected by prevailing economic conditions, competition, and the monetary, fiscal, and regulatory policies of governmental agencies. Lending activities are influenced by a number of factors, including the general credit needs of individuals and small and medium-sized businesses in the Company’s market area, competition, the current regulatory environment, the level of interest rates, and the availability of funds. Deposit flows and costs of funds are influenced by prevailing market rates of interest, competition, account maturities, and the level of personal income and savings in the market area.
	First Priority Bank also offers certain financial planning and investment management services. These investment services are provided by First Priority Financial Services, a Division of First Priority Bank, through an agreement with a third party provider. In addition, various life insurance products are offered through First Priority Bank, and the Bank has also entered into solicitation agreements with several investment advisors to provide portfolio management services for introduced customers of the Bank.
	The ability to originate loans and build a sound, growing loan portfolio is critically important to the success of First Priority Bank. The Bank provides highly customized loan products offered with excellent service and expertise with a goal of timely responsiveness within the market, and delivers these products and quality services through a staff of highly experienced lenders who are properly supported in the marketplace by seasoned management. The Bank’s lenders provide true relationship banking based upon a deep understanding of client needs, personal service, prompt decision making and customized banking solutions.
	First Priority Bank currently seeks deposits and commercial and private banking relationships through its ten banking offices. The Bank provides deposit products that include checking, money market and savings accounts, and certificates of deposit as well as other deposit services, including cash management and electronic banking products and online account opening capabilities. The Bank obtains funding in the local community by providing excellent service and competitive rates to its customers and utilizes electronic and print media advertising to attract current and potential deposit customers. The Bank also uses brokered certificates of deposit as a cost effective funding alternative.
	Basis of Presentation
	The accompanying unaudited consolidated financial statements were prepared in accordance with instructions to Form 10-Q, and therefore, do not include information or all footnotes necessary for a complete presentation of financial position, results of operations and cash flows in conformity with accounting principles generally accepted in the United States (“GAAP”). However, all normal recurring adjustments that, in the opinion of management, are necessary for a fair presentation of these financial statements have been included. These financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto for First Priority Financial Corp. for the year ended December 31, 2012, included in the Company’s Form 10-K filed with the Securities and Exchange Commission on April 9, 2013. The results of interim periods presented are not necessarily indicative of the results that may be expected for the year ending December 31, 2013.
	The accompanying unaudited consolidated financial statements consist of the parent company, First Priority Financial Corp. and its consolidated wholly owned subsidiary, First Priority Bank. The consolidated balance sheets and related statements of income of the Company are substantially the same as the consolidated balance sheets and related statements of income of the Bank. All significant intercompany accounts and transactions have been eliminated in consolidation.
	Acquired Loans
	Acquired loans are initially recorded at their acquisition date fair values. The carryover of allowance for loan losses is prohibited as any credit losses in the loans are included in the determination of the fair value of the loans at the acquisition date. Fair values for acquired loans are based on a discounted cash flow methodology that involves assumptions and judgments as to credit risk, prepayment risk, liquidity risk, default rates, loss severity, payment speeds, collateral values and discount rate.
	For acquired loans that are not deemed impaired at acquisition, credit discounts representing principal losses expected over the life of the loan are a component of the initial fair value. Subsequent to the acquisition date, the methods used to estimate the required allowance for loan losses for these loans is similar to originated loans. However, the Company records a provision for loan losses only when the required allowance exceeds any remaining credit discount. The remaining differences between the acquisition date fair value and the unpaid principal balance at the date of acquisition are recorded in interest income over the life of the loan.
	Acquired loans that have evidence of deterioration in credit quality since origination and for which it is probable, at acquisition, that the Company will be unable to collect all contractually required payments are accounted for as impaired loans under ASC 310-30. The excess of cash flows expected at acquisition over the estimated fair value is referred to as the accretable discount and is recognized into interest income over the remaining life of the loans. The difference between contractually required payments at acquisition and the cash flows expected to be collected at acquisition is referred to as the non-accretable discount. The non-accretable discount represents estimated future credit losses expected to be incurred over the life of the loan. Subsequent decreases to the expected cash flows require the Company to evaluate the need for an allowance for loan losses on these loans. Subsequent improvements in expected cash flows result in the reversal of a corresponding amount of the non-accretable discount which the Company then reclassifies as an accretable discount that is recognized into interest income over the remaining life of the loans using the interest method.
	Acquired loans that met the criteria for non-accrual of interest prior to acquisition may be considered performing upon acquisition, or in the future, regardless of whether the customer is contractually delinquent, if the Company can reasonably estimate the timing and amount of the expected cash flows on such loans and if the Company expects to fully collect the new carrying value of the loans. As such, the Company may no longer consider the loan to be non-accrual or non-performing and may accrue interest on these loans, including the impact of any accretable discount. For acquired loans that are not deemed impaired at acquisition, credit discounts representing the principal losses expected over the life of the loan are a component of the initial fair value and amortized over the life of the asset. Subsequent to the acquisition date, the methods utilized to estimate the required allowance for loan losses for these loans is similar to originated loans, however, the Company records a provision for loan losses only when the required allowance exceeds any remaining pooled discounts for loans evaluated collectively for impairment.
	Allowance for Loan Losses
	The allowance for credit losses consists of the allowance for loan losses and the reserve for unfunded lending commitments. The allowance for loan losses represents management’s estimate of losses inherent in the loan portfolio as of the balance sheet date and is recorded as a reduction to loans. The reserve for unfunded lending commitments represents management’s estimate of losses inherent in its unfunded loan commitments and is recorded in other liabilities on the consolidated balance sheet. The allowance for loan losses is increased by the provision for loan losses, and decreased by charge-offs, net of recoveries. Loans deemed to be uncollectible are charged against the allowance for loan losses, and subsequent recoveries, if any, are credited to the allowance. All, or part, of the principal balance of loans receivable are charged off to the allowance as soon as it is determined that the repayment of all, or part, of the principal balance is highly unlikely. Because all identified losses are immediately charged off, no portion of the allowance for loan losses is restricted to any individual loan or groups of loans, and the entire allowance is available to absorb any and all loan losses.
	The allowance for loan losses is maintained at a level considered adequate to provide for losses that can be reasonably anticipated. Management performs a quarterly evaluation of the adequacy of the allowance. The allowance is based on the Company’s past loan loss experience, known and inherent risks in the portfolio, adverse situations that may affect the borrower’s ability to repay, the estimated value of any underlying collateral, composition of the loan portfolio, current economic conditions and other relevant factors. This evaluation is inherently subjective as it requires material estimates that may be susceptible to significant revision as more information becomes available.
	The allowance consists of specific, general and unallocated components. The specific component relates to loans that are classified as impaired. For loans that are classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers pools of loans by loan class including commercial loans not considered impaired, as well as smaller balance homogeneous loans, such as residential real estate, home equity and other consumer loans. These pools of loans are evaluated for loss exposure based upon historical loss rates for each of these categories of loans, adjusted for qualitative factors. These qualitative risk factors include:
	1	Lending policies and procedures, including underwriting standards and collection, charge-off, and recovery practices.
	2	National, regional, and local economic and business conditions as well as the condition of various market segments, including the value of underlying collateral for collateral dependent loans.
	3	Nature and volume of the portfolio and terms of loans.
	4	Management team with experience, depth, and knowledge in banking and in many areas of lending. Each contributes to the sound credit culture and control within the Bank.
	5	Volume and severity of past due, classified and nonaccrual loans as well as and other loan modifications.
	6	The Bank engages a third party to perform an independent review of the loan portfolio as a measure for quality and consistency in credit evaluation and credit decisions.
	7	Existence and effect of any concentrations of credit and changes in the level of such concentrations.
	8	Effect of external factors, such as competition and legal and regulatory requirements.
	Each factor is assigned a value to reflect improving, stable or declining conditions based on management’s best judgment using relevant information available at the time of the evaluation. Adjustments to the factors are supported through documentation of changes in conditions in a narrative accompanying the allowance for loan loss calculation.
	A majority of the Bank’s loans are to business owners of many types. The Bank makes commercial loans for real estate development and other business purposes required by our customers.
	The Bank’s credit policies determine advance rates against the different forms of collateral that can be pledged against commercial loans. Typically, the majority of loans will be limited to a percentage of their underlying collateral values such as real estate values, equipment, eligible accounts receivable and inventory. Individual loan advance rates may be higher or lower depending upon the financial strength of the borrower and/or term of the loan. The assets financed through commercial loans are used within the business for its ongoing operation. Repayment of these kinds of loans generally comes from the cash flow of the business or the ongoing conversions of assets. Commercial real estate loans include long-term loans financing commercial properties. Repayment of this kind of loan is dependent upon either the ongoing cash flow of the borrowing entity or the resale of or lease of the subject property. Commercial real estate loans typically require a loan to value ratio of not greater than 80% and vary in terms.
	Residential mortgages and home equity loans are secured by the borrower’s residential real estate in either a first or second lien position. Residential mortgages and home equity loans have varying loan rates depending on the financial condition of the borrower and the loan to value ratio. Residential mortgages have amortizations up to 30 years and home equity loans have maturities up to 10 years.
	Other consumer loans include installment loans, car loans, and overdraft lines of credit. The majority of these loans are secured.
	An unallocated component of the allowance for loan losses is maintained to cover uncertainties that could affect management’s estimate of probable losses. The unallocated component of the allowance reflects the margin of imprecision inherent in the underlying assumptions used in the methodologies for estimating specific and general losses in the portfolio.
	A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case- by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record and the amount of the shortfall in relation to the principal and interest owed. Impairment is measured on a loan by loan basis for commercial and industrial loans, commercial real estate loans and commercial construction loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate or the fair value of the collateral if the loan is collateral dependent.
	An allowance for loan losses is established for an impaired loan if its carrying value exceeds its estimated fair value. The estimated fair values of substantially all of the Company’s impaired loans are measured based on the estimated fair value of the loan’s collateral.
	For commercial loans secured by real estate, estimated fair values are determined primarily through third-party appraisals. When a real estate secured loan becomes impaired, a decision is made regarding whether an updated certified appraisal of the real estate is necessary. This decision is based on various considerations, including the age of the most recent appraisal, the loan-to-value ratio based on the original appraisal and the condition of the property. Appraised values may be discounted to arrive at the estimated selling price of the collateral, which is considered to be the estimated fair value. The discounts also include estimated costs to sell the property.
	For commercial and industrial loans secured by non-real estate collateral, such as accounts receivable, inventory and equipment, estimated fair values are determined based on the borrower’s financial statements, inventory reports, accounts receivable aging or equipment appraisals or invoices. Indications of value from these sources are generally discounted based on the age of the financial information or the quality of the assets.
	Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. Accordingly, the Company does not separately identify individual residential mortgage loans, home equity loans and other consumer loans for impairment disclosures, unless such loans are the subject of a troubled debt restructuring agreement.
	Acquired loans are recorded at acquisition date at their acquisition date fair values, and therefore, are excluded from the calculation of loan loss reserves as of the acquisition date. To the extent there is a decrease in the present value of cash flows expected from the acquired impaired loans after the date of acquisition, the Company records a provision for potential losses. During the three and nine months ended September 30, 2013, the Company recorded a provision for loan losses totaling $89 thousand for acquired impaired loans. There were no acquired loans as of September 30, 2012.
	For acquired loans that are not deemed impaired at acquisition, credit discounts representing the principal losses expected over the life of the loan are a component of the initial fair value. Subsequent to the acquisition date, the methods utilized to estimate the required allowance for loan losses for these loans is similar to originated loans, however, the Company records a provision for loan losses only when the required allowance exceeds any remaining pooled discounts for loans evaluated collectively for impairment. During the nine months ended September 30, 2013, the Company recorded a provision for loan losses totaling $118 thousand on acquired non-impaired loans. There were no acquired loans as of September 30, 2012.
	The allowance calculation methodology includes further segregation of loan classes into risk rating categories. The borrower’s overall financial condition, repayment sources, guarantors and value of collateral, if appropriate, are evaluated annually for commercial loans or when credit deficiencies arise, such as delinquent loan payments, for commercial and consumer loans. Credit quality risk ratings include regulatory classifications of special mention, substandard, doubtful and loss. Loans criticized special mention have potential weaknesses that deserve management’s close attention. If uncorrected, the potential weaknesses may result in deterioration of the repayment prospects. Loans classified substandard have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They include loans that are inadequately protected by the current sound net worth and paying capacity of the obligor or of the collateral pledged, if any. Loans classified doubtful have all the weaknesses inherent in loans classified substandard with the added characteristic that collection or liquidation in full, on the basis of current conditions and facts, is highly improbable. Loans classified as a loss are considered uncollectible and are charged to the allowance for loan losses. Loans not classified are rated pass.
	In addition, Federal regulatory agencies, as an integral part of their examination process, periodically review the Company’s allowance for loan losses and may require the Company to recognize additions to the allowance based on their judgments about information available to them at the time of their examination, which may not be currently available to management. Based on management’s comprehensive analysis of the loan portfolio, management believes the current level of the allowance for loan losses is adequate.
	Subsequent Events
	The Company has evaluated subsequent events for potential recognition and/or disclosure through the date that these financial statements were issued.
	Estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, stock-based compensation, impairment of goodwill, impairment of investments and restricted investments in bank stocks and the valuation of deferred tax assets and other real estate owned.
	Restricted Investments in Bank Stocks
	Restricted investments in bank stocks, which represents the required investment in the common stock of correspondent banks, are carried at cost and consist of stock of the Federal Home Loan Bank of Pittsburgh (“FHLB”) and Atlantic Central Bankers Bank. Federal law requires a member institution of the FHLB to hold FHLB stock according to a predetermined formula. Management’s determination of whether these investments are impaired is based on management’s assessment of the ultimate recoverability of their cost rather than by recognizing temporary declines in value.

Merger_with_Affinity_Bancorp_I

Merger with Affinity Bancorp, Inc.	9 Months Ended
	Sep. 30, 2013
Business Combinations [Abstract]	'
Merger with Affinity Bancorp, Inc.	'
	Note 2—Merger with Affinity Bancorp, Inc.
	On February 28, 2013, First Priority and Affinity Bancorp, Inc. completed a merger, pursuant to a definitive merger agreement dated May 23, 2012, whereby the companies agreed to merge their respective holding companies and bank subsidiaries. Under the terms of the merger agreement, shareholders of Affinity received 0.9813 newly issued shares of First Priority in exchange for each Affinity share. A total of 1,915,942 shares of First Priority common stock were issued in connection with the merger. The combination created a full-service community bank with ten offices serving the Berks, Chester, Montgomery and Bucks County markets. The Company is headquartered in Malvern, PA.
	The acquisition is being accounted for using acquisition accounting, which requires the Company to allocate the total consideration transferred to the assets acquired and liabilities assumed, based on their respective fair values at the merger date, with any remaining excess consideration being recorded as goodwill. The fair value of total assets acquired as a result of the merger totaled $175.9 million, which consisted of $77.4 million in loans, $33.3 million in securities available for sale, $24.4 million in cash and due from banks and $38.7 million in other assets, of which $33.6 million was related to receivables for investment securities sold prior to the merger, pending settlement. The transaction also resulted in a core deposit intangible asset of $582 thousand and goodwill of $1.5 million. The fair value of liabilities assumed aggregated $165.8 million, including $150.9 million of deposits and $14.4 million in long-term borrowings, of which the borrowings were subsequently paid off in the first quarter of 2013. The transaction added $10.0 million to First Priority’s equity based on the fair value of stock issued in the acquisition. The results of Affinity’s operations have been included in the Company’s consolidated financial statements prospectively from the date of the merger.
	The fair value estimates are subject to change for up to one year after the closing date of the transaction if additional information relative to the closing date fair values becomes available. As the Company continues to analyze the acquired assets and liabilities, there may be adjustments to the recorded carrying values.
	(In thousands, except share and per share data)	February 28, 2013
	Purchase Price Consideration in Common Stock
	Affinity common shares settled for stock		1,952,644
	Exchange ratio		0.9813
	First Priority shares issued		1,915,942
	Fair value assigned to First Priority’s common shares	$	5.22
	Acquisition cost of Affinity common shares exchanged for First Priority Stock—Total Acquisition cost			$	10,001
	Acquisition cost of Consideration—Affinity Options Rolled over to First Priority Options				44
	Total Acquisition cost				10,045
	Identifiable assets:
	Cash and due from banks	$	24,419
	Securities available for sale		33,253
	Loans and leases		77,359
	Intangible assets		582
	Other assets		38,738
	Total identifiable assets				174,351
	Liabilities:
	Deposits	$	150,904
	Long-term borrowings		14,358
	Other liabilities		575
	Total liabilities				165,837
	Net goodwill resulting from merger			$	1,531
	The acquired assets and assumed liabilities were measured at estimated fair values. In many cases, determining the fair value of the acquired assets and assumed liabilities required First Priority to estimate cash flows expected to result from those assets and liabilities and to discount those cash flows at appropriate rates of interest, which required the utilization of significant estimates and judgment in accounting for the acquisition. As of February 28, 2013, goodwill totaled $1.0 million based on acquisition accounting and the fair values assigned to respective balance sheet categories at the merger date. Subsequently, adjustments related to the fair value of acquired loans were recorded totaling $525 thousand which increase the resulting goodwill from the merger to $1.5 million.
	The estimated fair values of cash and due from banks, other assets and other liabilities approximate their stated value.
	The estimated fair values of the investment securities available for sale were calculated primarily using level 2 inputs. The prices for these instruments are obtained through an independent pricing service and are derived from market quotations and matrix pricing. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond’s terms and conditions, among other things. Management reviewed the data and assumptions used in pricing the securities to ensure the highest level of significant inputs are derived from market observable data.
	Real estate acquired through foreclosure, included in other assets, was primarily valued based on estimated or appraised collateral values.
	The most significant fair value determination related to the valuation of acquired loans. Management measured loan fair values based on loan file reviews (including borrower financial statements or tax returns), appraised collateral values, expected cash flows and historical loss factors. The business combination resulted in the acquisition of loans with and without evidence of credit quality deterioration.
	Affinity’s loans without evidence of credit deterioration were fair valued by discounting both expected principal and interest cash flows using an observable discount rate for similar instruments that a market participant would consider in determining fair value. Additionally, consideration was given to management’s best estimates of default rates and payment speeds. At acquisition, Affinity’s loan portfolio without evidence of deterioration was recorded at a current fair value of $74.6 million. The Company utilized an interest rate loan fair value analysis, which resulted in a positive fair value adjustment of $1.6 million related to this portion of the acquired loans and a general credit fair value analysis which resulted in an offsetting $1.6 million reduction in the fair value.
	To prepare the interest rate loan fair value analysis loans were assembled into groupings by characteristics such as loan type, term, collateral and rate. Market rates for similar loans were obtained from various external data sources and reviewed by Company management for reasonableness. The average of these rates was used as the fair value interest rate a market participant would utilize.
	A present value approach was utilized to calculate the interest rate fair value adjustment. The general credit risk fair value adjustment was calculated using a two part general credit fair value analysis: (1) expected lifetime losses, using an average of historical losses of the Company, Affinity and peer banks; and (2) an estimated fair value adjustment for qualitative factors related to general economic conditions and the risk related to lack of familiarity with the originator’s underwriting process.
	Affinity’s loans were deemed impaired at the acquisition date if the Company did not expect to receive all contractually required cash flows due to concerns about credit quality. Such loans were fair valued and the difference between contractually required payments at the acquisition date and cash flows expected to be collected was recorded as a nonaccretable difference. Effectively at the acquisition date, the Company recorded $2.8 million of purchased credit-impaired loans subject to a nonaccretable discount difference of $1.6 million. The method of measuring carrying value of purchased loans differs from loans originated by the Company (“originated loans”), and as such, the Company identifies purchased loans and purchased loans with a credit quality discount and originated loans at amortized cost. The aggregate expected cash flows less the acquisition date fair value will result in an accretable yield amount of $292 thousand, which will be recognized over the life of the loans on a level yield basis as an adjustment to yield.
	The following is a summary of the acquired impaired loans resulting from the merger with Affinity (dollars in thousands):
		Acquired Impaired Loans
	Contractually required principal and interest at acquisition	$	5,577
	Contractual cash flows not expected to be collected		2,441
	Expected cash flows at acquisition		3,136
	Interest component of expected cash flows		359
	Basis in acquired loans at acquisition—estimated fair value	$	2,777
	The fair value of demand deposits, money market and savings deposits acquired through the merger with Affinity was assumed to be approximately the carrying value as these accounts have no stated maturity and are payable on demand. Certificate of deposit accounts were valued as the present value of the certificates expected contractual payments discounted at market rates for similar certificates.
	Core deposit intangibles (CDI) represent the value assigned to demand, interest checking, money market and savings accounts acquired as part of an acquisition. The CDI value represents the future economic benefit of the potential cost savings from acquiring Core Deposits as part of an acquisition compared to the cost of alternative funding sources and the alternative cost to grow a similar core deposit base. The core deposit intangible of $582 thousand is being amortized over an estimated useful life of approximately 10 years.
	The following table shows amortization expense for the core deposit intangible for the next 5 years:
	In thousands
	Nine months Ended September 30, 2013	$	62
	Nine months Ended September 30, 2012		—
	Remainder of 2013:		26
	2014		97
	2015		86
	2016		76
	2017		65
	2018		55
	Management used specific market quotations from the FHLB to fair value long-term FHLB advances. These borrowings were subsequently paid off by the Company in the first quarter of 2013 at the recorded fair values.
	In addition, the Company has determined, based on the analysis of available positive and negative evidence, that a valuation allowance should be recorded against deferred taxes of the Company. Therefore, the incremental net deferred tax assets resulting from the merger with Affinity, totaling $1.8 million, were fully reserved by a valuation allowance. Affinity had a Federal net operating loss carryforward (“NOL”) for tax purposes of $1.5 million, or a $500 thousand tax impact at the statutory federal income tax rate of 34%, which is subject to certain limitations and expires in 2028 if not fully utilized. The $500 thousand deferred tax asset related to the NOL is included in the $1.8 million net deferred tax asset discussed above.
	In connection with the Affinity acquisition, First Priority incurred merger-related expenses in regards to personnel, professional fees, occupancy and equipment and other costs of integrating and conforming acquired operations with and into First Priority. Those expenses consisted largely of costs related to professional and consulting services, consolidating a branch office, termination of Affinity’s core system contractual agreement and conversion of systems and/or integration of operations, initial communication expenses to introduce First Priority to its new customers, printing and filing costs of completing the transaction and investment banking charges.
	A summary of merger related costs included in the consolidated statements of income follows (dollars in thousands):
		Three Months				Nine Months
		Ended September 30,				Ended September 30,
		2013		2012		2013		2012
	Accounting	$	—	$	62	$	26	$	67
	Branch consolidation		—		—		103		—
Investment banking		—		—		350		—
Investor & customer document printing and filing		35		14		153		14
Legal		—		109		5		247
Purchase accounting consulting		—		—		50		—
Salaries and employee benefits		83		—		83		—
System contract termination		—		—		314		—
System conversion/deconversion costs		206		—		450		—
	$	324	$	185	$	1,534	$	328
Pro Forma Condensed Combined Financial Information
The following table presents unaudited pro forma information as if the merger between First Priority and Affinity had been completed on January 1, 2012. These amounts do not include merger related expenses. Supplemental pro forma earnings for 2013 were adjusted to exclude $324 thousand and $1.78 million of merger related costs incurred in the three and nine month periods ended September 30, 2013, respectively; the results for the first nine months of 2012 were adjusted to include these charges. The pro forma information does not necessarily reflect the results of operations that would have occurred had the Company merged with Affinity at the beginning of 2012. Cost savings are also not reflected in the unaudited pro forma amounts for the periods presented, respectively. The pro forma financial information does not include the impact of possible business model changes, nor does it consider any potential impacts of current market conditions or revenues, expense efficiencies, or other factors.
	For the three months				For the nine months
	ended September 30,				ended September 30,
	2013				2013
	(Dollars in thousands)
	2013		2012		2013		2012
Total revenue, consisting of net interest income plus non-interest income	$	4,220	$	3,992	$	13,054	$	12,302
Net income (loss)	$	527	$	418	$	1,870	$	(619	)

Recently_Issued_Accounting_Sta

Recently Issued Accounting Standards	9 Months Ended
	Sep. 30, 2013
Accounting Changes And Error Corrections [Abstract]	'
Recently Issued Accounting Standards	'
	Note 3—Recently Issued Accounting Standards
	In February 2013, the Financial Accounting Standards Board, or FASB issued Accounting Standards Update (ASU) 2013-02, “Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income”. ASU 2013-02 requires reporting the effect of significant reclassifications out of accumulated other comprehensive income by component on the respective line items in the income statement parenthetically or in the notes to the financial statements if the amounts being reclassified are required under U.S. GAAP to be reclassified in their entirety to net income. This ASU is effective for public companies prospectively for fiscal years, and interim periods within those years, beginning after December 15, 2012 and early adoption is permitted. The adoption of ASU 2013- 02 did not have an impact on our results of operations or financial position.
	In January 2013, the FASB issued ASU 2013-01, “Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities” in order to clarify the scope of ASU 2011-11, “Disclosures About Offsetting Assets and Liabilities”, issued in December 2011. ASU 2011-11 required entities to disclose both gross and net information about instruments and transactions eligible for offset in the statement of financial position and instruments and transactions subject to an agreement similar to a master netting arrangement. This ASU was issued to allow investors to better compare financial statements prepared under U.S. GAAP with financial statements prepared under International Financial Reporting Standards, or IFRS. ASU 2013-01 clarified that ASU 2011-11 applies to derivatives, sale and repurchase agreements and reverse sale of repurchase agreements, and securities borrowing and securities lending arrangements, but does not apply to standard commercial contracts allowing either party to net in the event of default or to broker- dealer unsettled regular-way trades. Both ASUs are effective for public companies retrospectively for fiscal years, and interim periods within those years, beginning on or after January 1, 2013. The adoption of ASU 2013-02 and ASU 2011-11 did not have an impact on our results of operations or financial position.
	In February 2013, the FASB issued ASU 2013-04 “Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation is fixed at the Reporting Date”. The ASU requires the measurement of obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement with its co-obligors as well as any additional amount that the entity expects to pay on behalf of its co-obligors. The new standard is effective retrospectively for fiscal years and interim periods within those years, beginning after December 15, 2013, and early adoption is permitted. We are currently evaluating the implications of ASU 2013-04.

Earnings_Loss_Per_Common_Share

Earnings (Loss) Per Common Share	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Earnings (Loss) Per Common Share	'
	Note 4—Earnings (Loss) Per Common Share
	Diluted earnings (loss) per common share take into account the potential dilution that could occur if securities or other contracts to issue common stock were exercised and converted into common stock. Proceeds assumed to have been received on such exercise or conversion, are assumed to be used to purchase shares of the Company’s common stock at the average market price during the period, as required by the “treasury stock method” of accounting for common stock equivalents. For purposes of calculating the basic and diluted earnings (loss) per share, the Company’s reported net income (loss) is adjusted for dividends on preferred stock and net accretion/amortization related to the issuance of preferred stock to determine the net income (loss) to common shareholders. For the three and nine months ended September 30, 2013 diluted loss per share is the same as basic loss per share, as the effect of any common stock equivalent is antidilutive.
	The calculations of basic and diluted earnings (loss) per common share are presented below for the three and nine months ended September 30, 2013 and 2012:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		(In thousands, except per						(In thousands, except per
		share information)						share information)
		2013			2012			2013			2012
	Net income (loss)	$	87		$	218		$	(506	)	$	551
	Less: preferred stock dividends		(119	)		(119	)		(359	)		(359	)
	Less: net discount accretion on preferred stock		(14	)		(13	)		(40	)		(40	)
	Income (loss) to common shareholders	$	(46	)	$	86		$	(905	)	$	152
	Average basic common shares outstanding		6,332			3,144			5,641			3,144
	Effect of dilutive stock options		—			8			—			13
	Average number of common shares used to calculate diluted earnings per common share		6,332			3,152			5,641			3,157
	Basic earnings (loss) per common share	$	(0.01	)	$	0.03		$	(0.16	)	$	0.05
	Diluted earnings (loss) per common share	$	(0.01	)	$	0.03		$	(0.16	)	$	0.05
	The amount of preferred stock dividends and the net accretion or amortization related to each series of preferred stock is presented below for the three and nine months ended September 30, 2013 and 2012:
		For the three months ended						For the nine months ended
		September 30,						September 30,
		2013			2012			2013			2012
		(Dollars in thousands)						(Dollars in thousands)
	Preferred dividends:
	Preferred Series A	$	57		$	57		$	172		$	172
	Preferred Series B		5			5			15			15
	Preferred Series C		57			57			172			172
	Total preferred dividends	$	119		$	119		$	359		$	359
	Net accretion (amortization) on preferred stock:
	Preferred Series A	$	(14	)	$	(14	)	$	(43	)	$	(43	)
	Preferred Series B		2			2			5			5
	Preferred Series C		(2	)		(1	)		(2	)		(2	)
	Total net accretion (amortization) on preferred stock	$	(14	)	$	(13	)	$	(40	)	$	(40	)

Securities

Securities	9 Months Ended
	Sep. 30, 2013
Investments Debt And Equity Securities [Abstract]	'
Securities	'
	Note 5—Securities
	Management determines the appropriate classification of debt securities at the time of purchase and re-evaluates such designation as of each balance sheet date. Securities classified as available for sale are those securities that the Company intends to hold for an indefinite period of time, but not necessarily to maturity. Available for sale securities are carried at fair value.
	Unrealized gains and losses on available for sale investment securities are reported as increases or decreases in other comprehensive income as a component of shareholders’ equity. Realized gains or losses, determined on the basis of the cost of the specific securities sold, are included in earnings. Premiums and discounts are recognized in interest income using the interest method over the term of each security. Any decision to sell a security classified as available for sale would be based on various factors, including significant movements, or anticipated movements in interest rates, changes in the maturity mix of the Company’s assets and liabilities, liquidity needs, regulatory capital considerations and other similar factors.
	Securities classified as held to maturity are those debt securities the Company has both the intent and ability to hold to maturity regardless of changes in market conditions, liquidity needs or changes in general economic conditions. These securities are carried at cost adjusted for the amortization of premium and accretion of discount, computed by a method which approximates the interest method over the terms of the securities. There were no securities classified as held to maturity as of December 31, 2012. During the second quarter of 2013, the Company transferred securities with fair values of $11.2 million of obligations of states and political subdivisions from available for sale securities to held to maturity securities.
	Net unrealized holding gains arising prior to the reclassification date as of May 31, 2013 totaling $293 thousand are reported as a separate line item within accumulated other comprehensive income when reclassified from available for sale investments to held to maturity investments. This balance, totaling $267 thousand as of September 30, 2013, is being amortized over the remaining life of the related securities as an adjustment of yield in a manner consistent with the accretion of discount on the same transferred debt securities. This will have no impact on the Company’s net income because the amortization of the unrealized holding loss reported in equity will offset the effect on the interest income of the accretion of the discount on these securities. The transfer of securities from available for sale to held to maturity was completed in order to mitigate the volatility to common equity caused by sudden market fluctuations and to lock in a predictable earnings on these related securities.
	The amortized cost, unrealized gains and losses, and the estimated fair value of the Company’s investment securities available for sale and held to maturity are as follows:
		As of September 30, 2013
		Amortized		Gross		Gross			Estimated Fair
		Cost		Unrealized		Unrealized			Value
				Gains		Losses
		(Dollars in thousands)
	Available For Sale:
	Obligations of U.S. government agencies and corporations	$	24,612	$	12	$	(408	)	$	24,216
	Obligations of states and political subdivisions		8,347		—		(396	)		7,951
	Federal agency mortgage-backed securities		21,513		164		(256	)		21,421
	Federal agency collateralized mortgage obligations		855		6		(7	)		854
	Other debt securities		1,253		1		(32	)		1,222
	Money market mutual fund		27		—		—			27
	Total investment securities available for sale	$	56,607	$	183	$	(1,099	)	$	55,691
	Held To Maturity:
	Obligations of states and political subdivisions	$	11,005	$	1	$	(578	)	$	10,428
	Total held to maturity	$	11,005	$	1	$	(578	)	$	10,428
		As of December 31, 2012
		Amortized		Gross		Gross			Estimated Fair
		Cost		Unrealized		Unrealized			Value
				Gains		Losses
		(Dollars in thousands)
	Available For Sale:
	Obligations of U.S. government agencies and corporations	$	1,000	$	1	$	—		$	1,001
	Obligations of states and political subdivisions		11,304		585		(32	)		11,857
	Federal agency mortgage-backed securities		3,552		129		—			3,681
	Money market mutual fund		140		—		—			140
	Total investment securities available for sale	$	15,996	$	715	$	(32	)	$	16,679
	There were no securities classified as held to maturity as of December 31, 2012.
	Other-than-temporary impairment, if any, is separated into (a) the amount of the total other-than-temporary impairment related to a decrease in cash flows expected to be collected from the debt security (the credit loss) and (b) the amount of the total other-than- temporary impairment related to all other factors. The amount of the total other-than-temporary impairment related to the credit loss is recognized in earnings. The amount of the total other-than-temporary impairment related to all other factors is recognized in other comprehensive income.
	As of September 30, 2013, management believes that the estimated fair value of the securities disclosed above is primarily dependent upon the movement in market interest rates particularly given the minimal inherent credit risk associated with the issuers of these securities.
	The impairment in the available for sale investment portfolio totaled $1.1 million as of September 30, 2013 with a total fair value of $55.7 million; while impairment in the held to maturity portfolio totaled $578 thousand with a total fair value of $10.4 million. The unrealized losses in these portfolios are attributable to the increase in interest rates that occurred in the second quarter of 2013 and are not the result of deteriorating credit within any investment category. Investment rates at September 30, 2013 are comparable to June 30, 2013.
	Securities issued by states and political subdivisions are all rated investment grade. Each holding is reviewed quarterly for impairment by management and our investment advisor. All mortgage backed securities and collateralized mortgage obligations are issued by U.S. government sponsored agencies; there are no holdings of private label mortgage backed securities or securities rated “Alt-A” or “Subprime”.
	Although the fair value will fluctuate as market interest rates move, management believes that these fair values will recover as the underlying portfolios mature. As of September 30, 2013, there were 19 obligations of U.S. government agencies and corporations, 41 obligations of states and political subdivisions, 8 federal agency mortgage-backed securities, 1 federal agency collateralized mortgage obligation and 1other debt security which were in an unrealized loss position. The Company evaluates a variety of factors in concluding whether securities are other-than-temporarily impaired. These factors include, but are not limited to, the type and purpose of the bond, the underlying rating of the bond issuer, and the presence of credit enhancements (i.e. state guarantees, municipal bond insurance, collateral requirements, etc.). One state and political subdivision security has been in a continuous unrealized loss position for twelve months or longer as of September 30, 2013. At that date, the current amortized cost and market value of this security was $520 thousand and $491 thousand, respectively, or an unrealized loss of $29 thousand. The Company does not intend to sell any of these securities and it is unlikely that it will be required to sell any of these securities before recovery. Management does not believe any individual unrealized loss as of September 30, 2013 represents an other-than-temporary impairment. There were no individual securities in a continuous unrealized loss position for twelve months or longer as of the year ended December 31, 2012.
	For the three and nine months ended September 30, 2012 net gains of $57 thousand and $422 thousand were realized from the sale of available for sale securities. There were no realized gains or losses for the three and nine months ended September 30, 2013.
	Securities with an estimated fair value of $42.1 million were pledged at September 30, 2013 to secure public fund deposits. There were no securities pledged for public fund deposits by the Bank as of December 31, 2012. In addition, securities pledged to secure borrowings by the Bank totaled $117 thousand and $4.7 million as of September 30, 2013 and December 31, 2012, respectively.
	The amortized cost and fair value of securities as of September 30, 2013 by contractual maturity are shown below. Certain of these investment securities have call features which allow the issuer to call the security prior to its maturity date at the issuer’s discretion.
		September 30, 2013				September 30, 2013
		Available for Sale Securities				Held to Maturity
		Amortized Cost		Fair Value		Amortized Cost			Fair Value
		(Dollars in thousands)				(Dollars in thousands)
	Due within one year	$	251	$	251	$	—		$	—
	Due after one year through five years		13,505		13,358		—			—
	Due after five years through ten years		19,188		18,795		1,594			1,537
	Due after ten years		23,636		23,260		9,411			8,891
			56,580		55,664		11,005			10,428
	Money market mutual fund		27		27		—			—
	Total	$	56,607	$	55,691	$	11,005		$	10,428

Loans_Receivable_and_Related_A

Loans Receivable and Related Allowance for Loan Losses	9 Months Ended
	Sep. 30, 2013
Receivables [Abstract]	'
Loans Receivable and Related Allowance for Loan Losses	'
	Note 6—Loans Receivable and Related Allowance for Loan Losses
	Loans receivable consist of the following at September 30, 2013 and December 31, 2012. For presentation, originated loans exclude loans acquired through the merger with Affinity consummated on February 28, 2013, and acquired loans include loans acquired through the merger with Affinity as of this same date.
		September 30,			December 31,
		2013			2012
		(Dollars in thousands)
	Commercial:
	Commercial and industrial	$	79,038		$	62,366
	Commercial mortgage		139,287			93,775
	Commercial construction		3,671			4,112
	Total commercial		221,996			160,253
	Residential mortgage loans		56,780			49,354
	Consumer:
	Home equity lines of credit		31,286			20,654
	Other consumer loans		22,464			14,298
	Total consumer		53,750			34,952
	Total loans		332,526			244,559
	Allowance for loan losses		(2,236	)		(2,460	)
	Net deferred loan fees		(329	)		(284	)
	Total loans receivable, net	$	329,961		$	241,815
	Originated loans	$	278,843		$	244,559
	Acquired loans		53,683			—
	Total loans	$	332,526		$	244,559
	The Bank’s loans consist of credits to borrowers spread over a broad range of industrial classifications. The largest concentrations of loans are to lessors of nonresidential buildings and lessors of residential buildings and dwellings. As of September 30, 2013, these loans totaled $62.6 million and $42.3 million, respectively, or 18.8% and 12.7%, respectively, of the total loans outstanding. As of December 31, 2012, these same classifications of loans totaled $48.1 million and $27.6 million, respectively, or 19.7% and 11.3%, respectively, of the total loans outstanding at that time. These credits were subject to normal underwriting standards and did not present more than the normal amount of risk assumed by the Bank’s other lending activities. Management believes this concentration does not pose abnormal risk when compared to the risk it assumes in other types of lending. The Bank has no other concentration of loans which exceeds 10% of total loans.
	The following tables summarize the activity in the allowance for loan losses by loan class for the three and nine months ended September 30, 2013 and 2012:
		For the three months ended													For the nine months ended
		September 30, 2013													September 30, 2013
		Allowance for Loan Losses													Allowance for Loan Losses
		(Dollars in thousands)													(Dollars in thousands)
		Beginning			Charge-			Recoveries		Provision			Ending		Beginning		Charge-			Recoveries		Provision			Ending
		Balance			offs					for loan			Balance		Balance		offs					for loan			Balance
										losses												losses
	Commercial and industrial	$	431		$	—		$	11	$	(49	)	$	393	$	566	$	(339	)	$	19	$	147		$	393
	Commercial mortgage		389			(137	)		—		202			454		559		(137	)		—		32			454
	Commercial construction		30			—			—		(22	)		8		31		—			—		(23	)		8
	Residential mortgage loans		145			(6	)		—		9			148		176		(14	)		7		(21	)		148
	Home equity lines of credit		180			(86	)		—		82			176		89		(332	)		—		419			176
	Other consumer loans		61			(9	)		4		20			76		41		(9	)		11		33			76
	Unallocated		993			—			—		(12	)		981		998		—			—		(17	)		981
	Total loans	$	2,229		$	(238	)	$	15	$	230		$	2,236	$	2,460	$	(831	)	$	37	$	570		$	2,236
	Commercial and industrial	$	431		$	—		$	3	$	(41	)	$	393	$	566	$	(339	)	$	1	$	165		$	393
	Commercial mortgage		389			—			—		65			454		559		—			—		(105	)		454
	Commercial construction		30			—			—		(22	)		8		31		—			—		(23	)		8
	Residential mortgage loans		145			—			—		3			148		176		(5	)		7		(30	)		148
	Home equity lines of credit		180			—			—		(4	)		176		89		(246	)		—		333			176
	Other consumer loans		61			(9	)		2		22			76		41		(9	)		4		40			76
	Unallocated		993			—			—		(12	)		981		998		—			—		(17	)		981
	Total originated loans	$	2,229		$	(9	)	$	5	$	11		$	2,236	$	2,460	$	(599	)	$	12	$	363		$	2,236
	Commercial and industrial	$	—		$	—		$	8	$	(8	)	$	—	$	—	$	—		$	18	$	(18	)	$	—
	Commercial mortgage		—			(137	)		—		137			—		—		(137	)		—		137			—
	Commercial construction		—			—			—		—			—		—		—			—		—			—
	Residential mortgage loans		—			(6	)		—		6			—		—		(9	)		—		9			—
	Home equity lines of credit		—			(86	)		—		86			—		—		(86	)		—		86			—
	Other consumer loans		—			—			2		(2	)		—		—		—			7		(7	)		—
	Unallocated		—			—			—		—			—		—		—			—		—			—
	Total acquired loans	$	—		$	(229	)	$	10	$	219		$	—	$	—	$	(232	)	$	25	$	207		$	—
		For the three months ended													For the nine months ended
		September 30, 2012													September 30, 2012
		Allowance for Loan Losses													Allowance for Loan Losses
		(Dollars in thousands)													(Dollars in thousands)
		Beginning			Charge-			Recoveries		Provision			Ending		Beginning		Charge-			Recoveries		Provision			Ending
		Balance			offs					for loan			Balance		Balance		offs					for loan			Balance
										losses												losses
	Commercial and industrial	$	1,090		$	(7	)	$	1	$	(279	)	$	805	$	1,404	$	(207	)	$	2	$	(394	)	$	805
Commercial mortgage		209			—			—		274			483		198		—			—		285			483
Commercial construction		10			—			—		1			11		10		—			—		1			11
Residential mortgage loans		161			—			—		5			166		190		—			—		(24	)		166
Home equity lines of credit		51			—			—		(1	)		50		94		(190	)		—		146			50
Other consumer loans		28			—			1		2			31		34		—			17		(20	)		31
Unallocated		878			—			—		78			956		540		—			—		416			956
Total loans	$	2,427		$	(7	)	$	2	$	80		$	2,502	$	2,470	$	(397	)	$	19	$	410		$	2,502
The following tables present the balance in the allowance for loan losses at September 30, 2013 and December 31, 2012 disaggregated on the basis of the Company’s impairment method by class of loans receivable along with the balance of loans receivable by class disaggregated on the basis of the Company’s impairment methodology:
	September 30, 2013
	Allowance for Loan Losses								Loans Receivables
	(Dollars in thousands)
	Ending			Ending			Ending		Ending			Ending		Ending
	Balance			Balance			Balance		Balance			Balance		Balance
				Individually			Collectively					Individually		Collectively
				Evaluated			Evaluated					Evaluated for		Evaluated for
				for			for					Impairment		Impairment
				Impairment			Impairment
Commercial and industrial	$	393		$	37		$	356	$	79,038		$	1,846	$	77,192
Commercial mortgage		454			52			402		139,287			1,627		137,660
Commercial construction		8			—			8		3,671			443		3,228
Residential mortgage loans		148			—			148		56,780			248		56,532
Home equity lines of credit		176			—			176		31,286			—		31,286
Other consumer loans		76			—			76		22,464			268		22,196
Unallocated		981			—			981		—			—		—
Total loans	$	2,236		$	89		$	2,147	$	332,526		$	4,432	$	328,094
Commercial and industrial	$	393		$	37		$	356	$	69,464		$	841	$	68,623
Commercial mortgage		454			52			402		121,190			519		120,671
Commercial construction		8			—			8		2,839			—		2,839
Residential mortgage loans		148			—			148		48,987			—		48,987
Home equity lines of credit		176			—			176		21,531			—		21,531
Other consumer loans		76			—			76		14,832			49		14,783
Unallocated		981			—			981		—			—		—
Total originated loans	$	2,236		$	89		$	2,147	$	278,843		$	1,409	$	277,434
Commercial and industrial	$	—		$	—		$	—	$	9,574		$	1,005	$	8,569
Commercial mortgage		—			—			—		18,097			1,108		16,989
Commercial construction		—			—			—		832			443		389
Residential mortgage loans		—			—			—		7,793			248		7,545
Home equity lines of credit		—			—			—		9,755			—		9,755
Other consumer loans		—			—			—		7,632			219		7,413
Total acquired loans	$	—		$	—		$	—	$	53,683		$	3,023	$	50,660
	December 31, 2012
	Allowance for Loan Losses								Loans Receivables
	(Dollars in thousands)
	Ending			Ending			Ending		Ending			Ending		Ending
	Balance			Balance			Balance		Balance			Balance		Balance
				Individually			Collectively					Individually		Collectively
				Evaluated			Evaluated					Evaluated for		Evaluated for
				for			for					Impairment		Impairment
				Impairment			Impairment
Commercial and industrial	$	566		$	315		$	251	$	62,366		$	6,372	$	55,994
Commercial mortgage		559			244			315		93,775			2,293		91,482
Commercial construction		31			20			11		4,112			577		3,535
Residential mortgage loans		176			37			139		49,354			1,040		48,314
Home equity lines of credit		89			—			89		20,654			406		20,248
Other consumer loans		41			—			41		14,298			—		14,298
Unallocated		998			—			998		—			—		—
Total loans	$	2,460		$	616		$	1,844	$	244,559		$	10,688	$	233,871
The Bank had no loans acquired with deteriorated credit quality as of December 31, 2012.
The following tables summarize information in regard to impaired loans by loan portfolio class as of September 30, 2013 and December 31, 2012 as well as for the periods then ended, respectively:
	September 30, 2013								December 31, 2012
	Recorded			Unpaid			Related		Recorded			Unpaid		Related
	Investment			Principal			Allowance		Investment			Principal		Allowance
				Balance								Balance
	(Dollars in thousands)
With no related allowance recorded:
Commercial and industrial	$	1,596		$	3,081		$	—	$	4,635		$	4,707	$	—
Commercial mortgage		1,108			1,378			—		—			—		—
Commercial construction		443			885			—		—			—		—
Residential mortgage loans		248			318			—		908			908		—
Home equity lines of credit		—			—			—		406			860		—
Other consumer loans		268			347			—		—			—		—
With an allowance recorded:
Commercial and industrial	$	250		$	250		$	37	$	1,737		$	2,120	$	315
Commercial mortgage		519			521			52		2,293			2,329		244
Commercial construction		—			—			—		577			604		20
Residential mortgage loans		—			—			—		132			143		37
Home equity lines of credit		—			—			—		—			—		—
Other consumer loans		—			—			—		—			—		—
Total:
Commercial and industrial	$	1,846		$	3,331		$	37	$	6,372		$	6,827	$	315
Commercial mortgage		1,627			1,899			52		2,293			2,329		244
Commercial construction		443			885			—		577			604		20
Residential mortgage loans		248			318			—		1,040			1,051		37
Home equity lines of credit		—			—			—		406			860		—
Other consumer loans		268			347			—		—			—		—
Total	$	4,432		$	6,780		$	89	$	10,688		$	11,671	$	616
With no related allowance recorded:
Originated loans	$	640		$	1,263		$	—	$	5,949		$	6,475	$	—
Acquired Loans		3,023			4,746			—		—			—		—
Total	$	3,663		$	6,009		$	—	$	5,949		$	6,475	$	—
With an allowance recorded:
Originated loans	$	769		$	771		$	89	$	4,739		$	5,196	$	616
Acquired Loans		—			—			—		—			—		—
Total	$	769		$	771		$	89	$	4,739		$	5,196	$	616
Total:
Originated loans	$	1,409		$	2,034		$	89	$	10,688		$	11,671	$	616
Acquired Loans		3,023			4,746			—		—			—		—
Total	$	4,432		$	6,780		$	89	$	10,688		$	11,671	$	616
	Three Months Ended September 30,											Nine Months Ended September 30,
	2013						2012					2013				2012
	Average			Interest			Average		Interest			Average		Interest		Average			Interest
	Recorded			Income			Recorded		Income			Recorded		Income		Recorded			Income
	Investment			Recognized			Investment		Recognized			Investment		Recognized		Investment			Recognized
	(Dollars in thousands)
With no related allowance recorded:
Commercial and industrial	$	1,754		$	—		$	—	$	—		$	2,988	$	8	$	608		$	17
Commercial mortgage		982			—			—		—			766		—		—			—
Commercial construction		468			2			—		—			375		18		—			—
Residential mortgage loans		491			—			424		8			789		6		212			22
Home equity lines of credit		255			—			246		1			496		1		293			3
Other consumer loans		236			—			—		—			174		—		—			—
With an allowance recorded:
Commercial and industrial	$	515		$	—		$	5,243	$	12		$	744	$	23	$	5,350		$	36
Commercial mortgage		464			—			650		18			1,281		—		531			56
Commercial construction		243			—			—		—			410		12		—			—
Residential mortgage loans		—			—			136		—			33		—		143			—
Home equity lines of credit		—			—			—		—			—		—		—			—
Other consumer loans		—			—			—		—			—		—		—			—
Total:
Commercial and industrial	$	2,269		$	—		$	5,243	$	12		$	3,732	$	31	$	5,958		$	53
Commercial mortgage		1,446			—			650		18			2,047		—		531			56
Commercial construction		711			2			—		—			785		30		—			—
Residential mortgage loans		491			—			560		8			822		6		355			22
Home equity lines of credit		255			—			246		1			496		1		293			3
Other consumer loans		236			—			—		—			174		—		—			—
Total	$	5,408		$	2		$	6,699	$	39		$	8,056	$	68	$	7,137		$	134
The following table presents nonaccrual loans by classes of the loan portfolio as of September 30, 2013 and December 31, 2012:
	September 30,			December 31,
	2013			2012
	(Dollars in thousands)
Commercial and industrial	$	1,846		$	1,130
Commercial mortgage		1,627			2,293
Commercial construction		301			—
Residential mortgage loans		248			424
Home equity lines of credit		—			246
Other consumer loans		268			—
Total loans	$	4,290		$	4,093
Commercial and industrial	$	841		$	1,130
Commercial mortgage		519			2,293
Commercial construction		—			—
Residential mortgage loans		—			424
Home equity lines of credit		—			246
Other consumer loans		49			—
Total originated loans	$	1,409		$	4,093
Commercial and industrial	$	1,005		$	—
Commercial mortgage		1,108			—
Commercial construction		301			—
Residential mortgage loans		248			—
Home equity lines of credit		—			—
Other consumer loans		219			—
Total acquired loans	$	2,881		$	—
The Bank’s policy for interest income recognition on nonaccrual loans is to recognize income under the cash basis when the loans are both current and the collateral on the loan is sufficient to cover the outstanding obligation to the Bank. The Bank will not recognize income if these factors do not exist. Interest that would have been accrued on non-accruing loans under the original terms but was not recognized as interest income totaled $91 thousand and $216 thousand for the three and nine months ended September 30, 2013 and $32 thousand and $145 thousand for the three and nine months ended September 30, 2012, respectively.
The following tables present the classes of the loan portfolio summarized by the aggregate pass rating and the classified ratings of special mention, substandard and doubtful within the Company’s internal risk rating system as of September 30, 2013 and December 31, 2012:
	September 30, 2013
	Pass			Special			Substandard		Doubtful			Total
				Mention
	(Dollars in thousands)
Commercial:
Commercial and industrial	$	77,143		$	—		$	1,895	$	—		$	79,038
Commercial mortgage		137,201			381			1,705		—			139,287
Commercial construction		3,179			—			492		—			3,671
Residential mortgage loans		56,518			—			262		—			56,780
Consumer:
Home equity lines of credit		31,081			—			205		—			31,286
Other consumer loans		22,415			—			49		—			22,464
Total	$	327,537		$	381		$	4,608	$	—		$	332,526
Commercial:
Commercial and industrial	$	68,701		$	—		$	763	$	—		$	69,464
Commercial mortgage		120,212			381			597		—			121,190
Commercial construction		2,839			—			—		—			2,839
Residential mortgage loans		48,987			—			—		—			48,987
Consumer:
Home equity lines of credit		21,531			—			—		—			21,531
Other consumer loans		14,783			—			49		—			14,832
Total originated loans	$	277,053		$	381		$	1,409	$	—		$	278,843
Commercial:
Commercial and industrial	$	8,442		$	—		$	1,132	$	—		$	9,574
Commercial mortgage		16,989			—			1,108		—			18,097
Commercial construction		340			—			492		—			832
Residential mortgage loans		7,531			—			262		—			7,793
Consumer:
Home equity lines of credit		9,550			—			205		—			9,755
Other consumer loans		7,632			—			—		—			7,632
Total acquired loans	$	50,484		$	—		$	3,199	$	—		$	53,683
	December 31, 2012
	Pass			Special			Substandard		Doubtful			Total
				Mention
	(Dollars in thousands)
Commercial:
Commercial and industrial	$	55,861		$	818		$	5,687	$	—		$	62,366
Commercial mortgage		91,482			—			2,293		—			93,775
Commercial construction		3,535			—			577		—			4,112
Residential mortgage loans		48,446			—			908		—			49,354
Consumer:		—
Home equity lines of credit		20,248			—			406		—			20,654
Other consumer loans		14,298			—			—		—			14,298
Total	$	233,870		$	818		$	9,871	$	—		$	244,559
The performance and credit quality of the loan portfolio is also monitored by analyzing the age of the loans receivable as determined by the length of time a recorded payment is past due. The following tables present the classes of the loan portfolio summarized by the past due status as of September 30, 2013 and December 31, 2012:
	September 30, 2013
	30-59 Days			60-89 Days			Greater		Total Past			Current		Total Loans
	Past Due			Past Due			Than 90		Due					Receivables
							Days
	(Dollars in thousands)
Commercial:
Commercial and industrial	$	—		$	—		$	1,126	$	1,126		$	77,912	$	79,038
Commercial mortgage		396			506			1,103		2,005			137,282		139,287
Commercial construction		—			—			—		—			3,671		3,671
Residential mortgage loans		—			—			171		171			56,609		56,780
Consumer:
Home equity lines of credit		—			—			—		—			31,286		31,286
Other consumer loans		29			79			268		376			22,088		22,464
Total	$	425		$	585		$	2,668	$	3,678		$	328,848	$	332,526
Commercial:
Commercial and industrial	$	—		$	—		$	841	$	841		$	68,623	$	69,464
Commercial mortgage		—			219			519		738			120,452		121,190
Commercial construction		—			—			—		—			2,839		2,839
Residential mortgage loans		—			—			—		—			48,987		48,987
Consumer:
Home equity lines of credit		—			—			—		—			21,531		21,531
Other consumer loans		29			79			49		157			14,675		14,832
Total originated loans	$	29		$	298		$	1,409	$	1,736		$	277,107	$	278,843
Commercial:
Commercial and industrial	$	—		$	—		$	285	$	285		$	9,289	$	9,574
Commercial mortgage		396			287			584		1,267			16,830		18,097
Commercial construction		—			—			—		—			832		832
Residential mortgage loans		—			—			171		171			7,622		7,793
Consumer:
Home equity lines of credit		—			—			—		—			9,755		9,755
Other consumer loans		—			—			219		219			7,413		7,632
Total acquired loans	$	396		$	287		$	1,259	$	1,942		$	51,741	$	53,683
	December 31, 2012
	30-59 Days			60-89 Days			Greater		Total Past			Current		Total Loans
	Past Due			Past Due			Than 90		Due					Receivables
							Days
	(Dollars in thousands)
Commercial:
Commercial and industrial	$	—		$	250		$	880	$	1,130		$	61,236	$	62,366
Commercial mortgage		412			224			1,898		2,534			91,241		93,775
Commercial construction		—			7			—		—			4,112		4,112
Residential mortgage loans		—			—			424		431			48,923		49,354
Consumer:
Home equity lines of credit		—			—			246		246			20,408		20,654
Other consumer loans		—			31			—		31			14,267		14,298
Total	$	412		$	512		$	3,448	$	4,372		$	240,187	$	244,559
As of September 30, 2013 and December 31, 2012, there were no loans greater than 90 days past due and still accruing.
The Bank may grant a concession or modification for economic or legal reasons related to a borrower’s financial condition that it would not otherwise consider, resulting in a modified loan which is then identified as a troubled debt restructuring (“TDR”). The Bank may modify loans through rate reductions, extensions of maturity, interest only payments, or payment modifications to better match the timing of cash flows due under the modified terms with the cash flows from the borrowers’ operations. Loan modifications are intended to minimize the economic loss and to avoid foreclosure or repossession of the collateral. TDRs are considered impaired loans for purposes of calculating the Bank’s allowance for loan losses.
The Bank identifies loans for potential restructure primarily through direct communication with the borrower and evaluation of the borrower’s financial statements, revenue projections, tax returns, and credit reports. Even if the borrower is not presently in default, management will consider the likelihood that cash flow shortages, adverse economic conditions, and negative trends may result in a payment default in the near future.
The following tables reflect information regarding troubled debt restructurings entered into by the Bank for each respective period:
	For the three months ended								For the nine months ended
	30-Sep-13								30-Sep-13
	Number of			Pre-Modification			Post-Modification		Number of			Pre-Modification		Post-Modification
	Contracts			Outstanding			Outstanding		Contracts			Outstanding		Outstanding
				Recorded			Recorded					Recorded		Recorded
				Investments			Investments					Investments		Investments
	(Dollars in thousands)
Troubled debt restructurings:
Commercial and industrial		—		$	—		$	—		—		$	—	$	—
Commercial mortgage		—			—			—		—			—		—
Commercial construction		—			—			—		—			—		—
Residential mortgage loans		1			77			77		1			77		77
Home equity lines of credit		—			—			—		—			—		—
Other consumer loans		—			—			—		—			—		—
Total		1		$	77		$	77		1		$	77	$	77
	For the three months ended								For the nine months ended
	30-Sep-12								30-Sep-12
	Number of			Pre-Modification			Post-Modification		Number of			Pre-Modification		Post-Modification
	Contracts			Outstanding			Outstanding		Contracts			Outstanding		Outstanding
				Recorded			Recorded					Recorded		Recorded
				Investments			Investments					Investments		Investments
	(Dollars in thousands)
Troubled debt restructurings:
Commercial and industrial		—		$	—		$	—		2		$	4,583	$	4,183
Commercial mortgage		—			—			—		—			—		—
Commercial construction		—			—			—		—			—		—
Residential mortgage loans		—			—			—		1			144		135
Home equity lines of credit		—			—			—		1			695		246
Other consumer loans		—			—			—		—			—		—
Total		—		$	—		$	—		4		$	5,422	$	4,564
As of September 30, 2013, two commercial loans classified as troubled debt restructurings with combined outstanding balances totaling $78 thousand were in default and also classified as non-accrual status at September 30, 2013. Two troubled debt restructurings representing loans acquired through the Affinity merger are currently in default and classified as non-accrual; a commercial construction loan with a recorded value of $301 thousand and a residential mortgage with a value of $77 thousand. In addition, one home equity line of credit with an outstanding balance of $246 thousand previously classified as troubled debt restructuring was completely charged-off in the second quarter of 2013. The home equity line of credit troubled debt restructuring as of September 30, 2012, totaling $695 thousand was in default. No other TDR’s have subsequently defaulted.

Deposits

Deposits	9 Months Ended
	Sep. 30, 2013
Banking And Thrift [Abstract]	'
Deposits	'
	Note 7—Deposits
	The components of deposits at September 30, 2013 and December 31, 2012 are as follows:
		September 30, 2013		December 31, 2012
		(Dollars in thousands)
	Demand, non-interest bearing	$	38,070	$	28,176
	Demand, interest-bearing		43,402		9,392
	Money market and savings accounts		108,044		59,636
	Time, $100 and over		45,899		33,049
	Time, other		105,420		102,790
		$	340,835	$	233,043
	Included in time, other at September 30, 2013 and December 31, 2012 are brokered deposits of $27.9 million, and $48.5 million, respectively.
	At September 30, 2013, the scheduled maturities of time deposits were as follows:
		September 30, 2013
		(Dollars in thousands)
	9/30/14	$	59,894
	9/30/15		40,167
	9/30/16		23,803
	9/30/17		16,544
	9/30/18		10,899
	Thereafter		12
		$	151,319

Shareholders_Equity

Shareholders' Equity	9 Months Ended
	Sep. 30, 2013
Equity [Abstract]	'
Shareholders' Equity	'
	Note 8—Shareholders’ Equity
	During the initial offering period in 2005, the Company sold 2,107,500 shares of common stock at $10.00 per share, which resulted in net proceeds of $21.0 million, as well as warrants to purchase a total of 421,500 shares of common stock at an exercise price of $12.50 per share with an expiration date in November 2010, five years from the date of issuance. As of February 29, 2008, in connection with the acquisition of Prestige, First Priority issued an additional 976,137 shares of common stock and warrants to purchase 195,227 shares of its common stock at an exercise price of $12.50 per share with an expiration date in October 2012, resulting in additional equity of $7.4 million. Subsequently, on October 28, 2010, the Company’s Board of Directors authorized an extension of the expiration date of the total 616,727 warrants outstanding to December 31, 2013.
	On August 1, 2008, 39,292 shares of common stock were issued to convert $390 thousand of convertible subordinated debentures, issued in June and July 2007, which the Company elected to convert, resulting in additional equity of $403 thousand. On December 31, 2009, 20,302 shares of restricted common stock were issued to a select group of executives of the Company under provisions of the Company’s Deferred Compensation Plan which became effective January 1, 2009. Of the 20,302 restricted shares issued under this plan, 1,003 shares were forfeited during 2010 resulting in 19,299 restricted shares remaining outstanding as of December 31, 2012 and December 31, 2011. Additionally, shares of restricted common stock were issued to non-management employees throughout the Company under the Stock Compensation Program as described in Note 9, of which 5,025 shares and 1,775 shares were outstanding as of September 30, 2013 and December 31, 2012, respectively.
	On February 28, 2013, in conjunction with the merger with Affinity Bancorp, Inc. and under the terms of the merger agreement, shareholders of Affinity received 0.9813 newly issued shares of First Priority common stock in exchange for each Affinity share. A total of 1,915,942 shares of First Priority common stock were issued.
	Also, on February 28, 2013 and in conjunction with the merger Affinity Bancorp, Inc., First Priority issued 1,268,576 shares of common stock at an issuance price of $5.22 per share through a private placement resulting in total proceeds of $6.6 million, net of $50 thousand of related issuance costs.
	Preferred Stock Outstanding
	On February 20, 2009, First Priority entered into a Letter Agreement with the Treasury (the “Purchase Agreement”) as part of the Treasury’s TARP Capital Purchase Program, pursuant to which the Company issued and sold, and the Treasury agreed to purchase, (i) 4,579 shares of the Company’s Fixed Rate Cumulative Perpetual Preferred Stock, Series A, $100 par value per share, having a liquidation preference of $1,000 per share (the “Series A Preferred Stock”), and (ii) a warrant (the “Warrant) to purchase, on a net basis, up to 229 shares of the Company’s Fixed Rate Cumulative Perpetual Preferred Stock, Series B, par value $100 per share (the “Series B Preferred Stock”), with an exercise price of $100 per share, for an aggregate purchase price of $4.58 million in cash, less $29 thousand in legal issuance costs. On February 20, 2009, the Treasury immediately exercised the Warrant, on a cashless basis, which resulted in the issuance of the 229 shares of the Series B Preferred Stock. The Series A and Series B Preferred Stock were recorded at fair value and will be amortized to liquidation value over a five year expected life.
	On December 18, 2009, First Priority entered into an additional Purchase Agreement with the Treasury as part of the Treasury’s TARP Capital Purchase Program for Small Banks, pursuant to which the Company issued and sold, and the Treasury agreed to purchase, (i) 4,596 shares of the Company’s Fixed Rate Cumulative Perpetual Preferred Stock, Series C, $100 par value per share, having a liquidation preference of $1,000 per share (the “Series C Preferred Stock”), for an aggregate purchase price of $4.60 million in cash, less $8 thousand in legal issuance costs.
	The Series A and Series C Preferred Stock will pay cumulative dividends at a rate of 5% per annum for the first five years and 9% per annum thereafter. The Series B Preferred Stock will pay cumulative dividends at a rate of 9% per annum. The Series A, B and C Preferred Stock have no maturity date and rank senior to common stock with respect to dividends and upon liquidation, dissolution, or winding up. The Company may redeem the Series A or Series C Preferred Stock, in whole or in part, at its liquidation preference plus accrued and unpaid dividends.
	On February 8, 2013, the U.S. Department of Treasury sold its entire holdings of the Company’s preferred stock as part of its ongoing efforts to wind down and recover its remaining Capital Purchase Program (“CPP”) investments in financial institutions through a modified Dutch auction methodology by offering to domestic qualified institutional buyers and certain domestic institutional accredited investors an opportunity to purchase the Company’s preferred stock from the Treasury. Upon final closing of the sale of these securities to private investors, the previously placed limitations on executive compensation expired. There were no additional changes to the previously existing outstanding preferred stock which resulted from the sale to private investors.

Stock_Compensation_Program

Stock Compensation Program	9 Months Ended
	Sep. 30, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Stock Compensation Program	'
	Note 9—Stock Compensation Program
	In 2005, the Company adopted the 2005 Stock Compensation Program, which was amended at the Company’s annual meeting on April 23, 2009 as the 2009 Stock Compensation Program (the “Program”) and further amended effective March 18, 2010. The Program allows equity benefits to be awarded in the form of Incentive Stock Options, Compensatory Stock Options or Restricted Stock. The Program authorizes the Board of Directors to grant options up to an aggregate maximum of 825,000 shares to officers, other employees and directors of the Company. An additional 382,957 shares were authorized for grant under this plan as a result of the merger with Affinity. Only employees of the Company will be eligible to receive Incentive Stock Options and such grants are subject to the limitations under Section 422 of the Internal Revenue Code.
	All stock options granted under the Program fully vest in four years from the date of grant (or potentially earlier upon a change of control) and terminate ten years from the date of the grant. The exercise price of the options granted is the fair value of a share of common stock at the time of the grant, with a minimum exercise price of $10 per share for shares issued prior to March 18, 2010. Effective March 18, 2010, the Company’s stock compensation program was amended to eliminate the minimum exercise price.
	A summary of stock option activity for the nine months ended September 30, 2013 is presented below:
			Shares			Weighted
						Average
						Exercise
						Price
	Outstanding at beginning of period			712,350		$	8.87
	Granted during period			—			—
	Acquired in merger with Affinity			132,112			8.49
	Forfeited/cancelled during period			(2,609	)		9.67
	Expired			(30,666	)		6.52
	Outstanding at end of period (1)			811,187		$	8.89
	Exercisable at end of period (1)			608,687		$	9.86
	-1	Included in options outstanding and exercisable at September 30, 2013 are 100,000 organizer options, with an exercise price of $10.00 per share, exchanged as part of the 2008 acquisition of Prestige which were issued outside of the Program.
	On September 30, 2013 the weighted average remaining contractual life of all outstanding stock options was 4.2 years and exercisable options was 3.0 years. Options outstanding and exercisable options at September 30, 2013 had no intrinsic value.
	The fair value of each option grant is estimated on the date of grant using the Black-Scholes option pricing model. There were no options granted in the nine months ending September 30, 2013, other than options granted in conjunction with the merger of Affinity.
	Under the terms of the merger agreement, each Affinity option became fully vested and was exchanged for a grant of 0.9813 FPFC options, with an adjusted exercise price to reflect the exchange ratio and maintains the same expiration date as the original option. As a result, 132,112 options to purchase common shares of FPFC were issued with an average exercise price of $8.49 and a remaining contractual term of 3.2 years.
	These options were valued at the date of the merger at $44 thousand based on the following weighted average assumptions:
			September 30, 2013
	Dividend yield			0	%
	Expected life			2.6 years
	Expected volatility			33	%
	Risk-free interest rate			0.38	%
	Weighted average fair value		$	0.36
	FPFC stock price at date of issuance		$	5.22
	The dividend yield assumption is based on the Company’s history and expectation of dividend payouts. Due to the Company’s lack of sufficient historical exercise data and the limited period of time for which shares have been issued, the “simplified” method is used to determine the expected life of options, calculated as the average of the sum of the vesting term and original contractual term for all periods presented. In valuing Affinity options, an expected life was calculated assuming all options expire with a three year expiration date expire at expiration date; otherwise, the expected expiration date is the average of three years and the expiration date. The expected volatility percentage is based on the average expected volatility of similar public financial institutions in the Company’s market area. The risk-free interest rates for periods within the contractual life of the awards are based on the U.S. Treasury yield curve in effect at the time of the grant.
	As of September 30, 2013, there was $177 thousand of unrecognized compensation cost related to non-vested stock options granted after January 1, 2007. That cost is expected to be recognized over a weighted average period of 1.7 years. There was no tax benefit recognized related to this stock-based compensation.
	Restricted Stock grants fully vest three years from the date of grant (or potentially earlier upon a change of control), subject to the recipient remaining an employee of the Company. Upon issuance of the shares, resale of the shares is restricted during the vesting period, during which the shares may not be sold, pledged, or otherwise disposed of. Prior to the vesting date and in the event the recipient terminates association with Company for any reasons other than death, disability or change of control, the recipient forfeits all rights to the shares that would otherwise be issued under the grant. Restricted stock awards granted under the Plan were recorded at the date of the award based on the estimated fair value of the shares. As of September 30, 2013, there was $62 thousand of unrecognized compensation cost related to restricted stock, which will be amortized through June 30, 2016.
	A summary of restricted stock award activity is presented below for the nine months ended September 30, 2013:
			Shares
	Outstanding at beginning of period (1)			21,074
	Granted during year			3,625
	Forfeited/cancelled during year			(375	)
	Outstanding at end of period			24,324
	-1	Included in outstanding restricted stock are 19,299 grants issued as part of the 2009 Deferred Compensation Plan

Financial_Instruments_with_Off

Financial Instruments with Off-Balance Sheet Risk	9 Months Ended
	Sep. 30, 2013
Commitments And Contingencies Disclosure [Abstract]	'
Financial Instruments with Off-Balance Sheet Risk	'
	Note 10—Financial Instruments with Off-Balance Sheet Risk
	The Company is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit. Such commitments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the consolidated balance sheet.
	The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit is represented by the contractual amount of those instruments. The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments.
	At September 30, 2013 and December 31, 2012, outstanding commitments to extend credit consisting of total unfunded commitments under lines of credit were $74.4 million and $53.7 million, respectively. In addition, as of each of these dates, there were $1.3 million of performance standby letters of credit outstanding, and as of September 30, 2013, $1.3 million of financial standby letters of credit. There were no financial standby letters of credit outstanding as of December 31, 2012.
	Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements.
	Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. The Bank evaluates each customer’s credit worthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Bank upon extension of credit, is based on management’s credit evaluation. Collateral held varies but may include personal or commercial real estate, accounts receivable, inventory and equipment.
	In addition, as of September 30, 2013 and December 31, 2012 the Bank pledged $199 thousand of deposit balances at a correspondent bank to support a $199 thousand letter of credit issued by the correspondent on behalf of a customer of the Bank. This transaction is fully secured by the customer through a pledge of the customer’s deposits at the Bank. Also, as of September 30, 2013, the Bank had outstanding a financial standby letter of credit, which was collateralized by a pledge of Bank assets at a correspondent bank totaling $512 thousand.

Regulatory_Matters

Regulatory Matters

9 Months Ended

Sep. 30, 2013

Banking And Thrift [Abstract]

'

Regulatory Matters

'

Note 11—Regulatory Matters

The Bank is subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet the minimum capital requirements can initiate certain mandatory and possibly additional discretionary-actions by regulators that, if undertaken, could have a direct material effect on the Bank’s consolidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines that involve quantitative measures of the Bank’s assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk-weightings and other factors. Prompt corrective action provisions are not applicable to bank holding companies.

Quantitative measures established by regulation to ensure capital adequacy require the Company and the Bank to maintain minimum amounts and ratios (set forth below) of total and Tier 1 capital (as defined in the regulations) to risk-weighted assets and of Tier 1 capital to average assets. Management believes, as of September 30, 2013, that the Company and the Bank meet all capital adequacy requirements to which it is subject.

The Bank’s capital amounts and ratios at September 30, 2013 and December 31, 2012 are presented below:

Actual

Minimum Capital

To be Well

Requirement

Capitalized under

Prompt Corrective

Action Provisions

Amount

Ratio

Amount

Ratio

Amount

Ratio

(Dollars in thousands)

September 30, 2013

Total capital (to risk-weighted assets)

$

41,488

12.96

%

$

³25,601

³8.0

%

$

³32,002

³10.0

%

Tier 1 capital (to risk-weighted assets)

39,217

12.25

³12,801

³4.0

³19,201

³6.0

Tier 1 capital (to total assets)

39,217

9.54

³16,445

³4.0

³20,556

³5.0

December 31, 2012

Total capital (to risk-weighted assets)

$

28,073

12.48

%

$

³18,054

³8.0

%

$

³22,568

³10.0

%

Tier 1 capital (to risk-weighted

25,703

11.39

³9,027

³4.0

³13,541

³6.0

assets) Tier 1 capital (to total assets)

25,703

9.4

³10,934

³4.0

³13,668

³5.0

First Priority’s ability to pay cash dividends is dependent on receiving cash in the form of dividends from First Priority Bank. However, certain restrictions exist regarding the ability of First Priority Bank to transfer funds to First Priority in the form of cash dividends. All dividends are currently subject to prior approval of the Pennsylvania Department of Banking and Securities and the FDIC and are payable only from the undivided profits of First Priority Bank, with the exception of an exemption enacted by the Pennsylvania Department of Banking and Securities which allows the Bank to pay dividends related to the preferred stock originally issued under the U.S. Department of the Treasury’s Troubled Asset Relief Program—Capital Purchase Program. Additionally, any payment of dividends by First Priority, including dividends on the aforementioned preferred stock, requires prior approval of the Federal Reserve Bank when net income for the past four quarters is not sufficient to fund the dividend payments over that same period or when such payment would negatively impact capital adequacy of the Company.

The Company’s capital amounts and ratios are similar to those of the Bank.

Fair_Value_Measurements_and_Fa

Fair Value Measurements and Fair Values of Financial Instruments	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Measurements and Fair Values of Financial Instruments	'
	Note 12—Fair Value Measurements and Fair Values of Financial Instruments
	Management uses its best judgment in estimating the fair value of the Bank’s financial instruments; however, there are inherent weaknesses in any estimation technique. Therefore, for substantially all financial instruments, the fair value estimates herein are not necessarily indicative of the amounts the Company could have realized in a sales transaction on the dates indicated. The estimated fair value amounts have been measured as of September 30, 2013 and December 31, 2012 and have not been re-evaluated or updated for purposes of these financial statements subsequent to those respective dates. As such, the estimated fair values of these financial instruments subsequent to the respective reporting dates may be different than the amounts reported at each period end.
	The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. In accordance with FASB ASC Topic 820—Fair Value Measurements, the fair value of a financial instrument is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is best determined based upon quoted market prices. However, in some instances, there are no quoted market prices for the Company’s various financial instruments. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument.
	The recent fair value guidance provides a consistent definition of fair value, which focuses on exit price in an orderly transaction (that is, not a forced liquidation or distressed sale) between market participants at the measurement date under current market conditions. If there has been a significant decrease in the volume and level of activity for the asset or liability, a change in valuation technique or the use of multiple valuation techniques may be appropriate. In such instances, determining the price at which willing market participants would transact at the measurement date under current market conditions depends on the facts and circumstances and requires the use of significant judgment. The fair value is a reasonable point within the range that is most representative of fair value under current market conditions.
	FASB ASC Topic 820 establishes a fair value hierarchy that prioritizes the inputs to valuation methods used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy under FASB ASC Topic 820 are as follows:
	Level 1: Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.
	Level 2: Quoted prices in markets that are not active, or inputs that are observable either directly or indirectly, for substantially the full term of the asset or liability.
	Level 3: Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported with little or no market activity).
	An asset’s or liability’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement.
	For financial assets measured at fair value on a recurring basis, the fair value measurements by level within the fair value hierarchy used at September 30, 2013 and December 31, 2012 are as follows:
	Description		Fair Value		(Level 1) Quoted			(Level 2)		(Level 3)
					Prices in Active			Significant		Significant
					Markets for			Other		Unobservable
					Identical Assets			Observable		Inputs
								Inputs
			(Dollars in thousands)
	As of September 30, 2013:
	Investment securities available for sale:
	Obligations of U.S. government agencies and corporations		$	24,216	$	—		$	24,216	$	—
	Obligations of states and political subdivisions			7,952		—			7,952		—
	Federal agency mortgage-backed securities			21,421		—			21,421		—
	Federal agency CMO’s			853		—			853		—
	Other debt securities			1,222		—			1,222		—
	Money market mutual fund			27		27			—		—
	Total assets measured at fair value on a recurring basis		$	55,691	$	27		$	55,664	$	—
	As of December 31, 2012:
	Investment securities available for sale:
	Obligations of U.S. government agencies and corporations		$	1,001	$	—		$	1,001	$	—
	Obligations of states and political subdivisions			11,857		—			11,857		—
	Agency mortgage-backed securities			3,681		—			3,681		—
	Money market mutual fund			140		140			—		—
	Total assets measured at fair value on a recurring basis		$	16,679	$	140		$	16,539	$	—
	For financial assets measured at fair value on a nonrecurring basis, the fair value measurements by level within the fair value hierarchy used at September 30, 2013 and December 31, 2012 are as follows:
	Description		Fair Value		(Level 1)			(Level 2)		(Level 3)
					Quoted Prices			Significant		Significant
					in Active			Other		Unobservable
					Markets for			Observable		Inputs
					Identical			Inputs
					Assets
			(Dollars in thousands)
	As of September 30, 2013:
	Impaired loans, net		$	4,343	$	—		$	—	$	4,343
	Other real estate owned			907		—			—		907
	Repossessed assets			75		—			—		75
	Total assets measured at fair value on a nonrecurring basis		$	5,325	$	—		$	—	$	5,325
	As of December 31, 2012:
	Impaired loans		$	10,072	$	—		$	—	$	10,072
	Other real estate owned			184		—			—		184
	Total assets measured at fair value on a nonrecurring basis		$	10,256	$	—		$	—	$	10,256
	Management generally uses a discounted appraisal technique in valuing impaired assets, resulting in the discounting of the collateral values underlying each impaired asset. A discounted tax assessment rate has been applied for smaller assets to determine the discounted collateral value. All impaired loans are classified as Level 3 in the fair value hierarchy. Collateral may be real estate and/or business assets. Impaired loans are reviewed and evaluated on at least a quarterly basis for additional impairment.
	Quantitative information about Level 3 fair value measurements at September 30, 2013 is included in the table below:
			Fair Value		Valuation Techniques		Unobservable	Estimated
							Inputs	Ratings
								(Weighted
								Average) (3)
			(Dollars in thousands)
	Impaired loans		$	4,343	Appraisal of real		Appraisal	0%-20%
					estate collateral (1)		adjustments(2)	-6.20%
					Valuation of business		Valuation	25%-30%
					assets used as		adjustments(2)
					collateral(1)
							Liquidation	5%-10%
							expenses	-6.91%
Other real estate owned		$	907	Appraisal of		Appraisal	0%-90%
				collateral(1)		adjustments(2)	-20.32%
						Liquidation	0%-35%
						expenses	-10.09%
Quantitative information about Level 3 fair value measurements at December 31, 2012 is included in the table below:
		Fair Value		Valuation Techniques		Unobservable	Estimated
						Inputs	Ratings
							(Weighted
							Average) (3)
		(Dollars in thousands)
Impaired loans		$	10,072	Appraisal of real		Appraisal	0%-15%
				estate collateral (1)		adjustments(2)	-8.60%
				Valuation of business		Valuation	25%-30%
				assets used as		adjustments(2)
				collateral(1)
						Liquidation	5%-10%
						expenses	-9.90%
Other real estate owned		$	184	Appraisal of		Appraisal	None
				collateral(1)		adjustments(2)
						Liquidation	5%-10%
						expenses	-8.00%
-1	Fair Value is generally determined through independent appraisals of the underlying collateral, which include Level 3 inputs that are not identifiable.
-2	Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses.
-3	The range and weighted average of qualitative factors such as economic conditions and estimated liquidation expenses are presented as a percent of the appraised value.
Valuation of real estate collateral may be discounted based on the age of the existing appraisal. No discounts are taken for recent appraisals. Valuations related to business assets used as collateral are typically discounted more heavily due to the inherent level of uncertainty in determining the fair value of these types of assets.
Real estate properties acquired through, or in lieu of, foreclosure are to be sold and are carried at fair value less estimated cost to sell. Fair value is based upon independent market prices or appraised value of the property. These assets are included in Level 3 fair value based upon the lowest level of input that is significant to the fair value measurement.
The following information should not be interpreted as an estimate of the fair value of the entire Company since a fair value calculation is only provided for a limited portion of the Company’s assets and liabilities. Due to a wide range of valuation techniques and the degree of subjectivity used in making the estimates, comparisons between the Company’s disclosures and those of other companies may not be meaningful.
The following methods and assumptions were used to estimate the fair values of the Company’s financial instruments at September 30, 2013 and December 31, 2012:
Cash and Cash Equivalents
The carrying amounts reported in the balance sheet for cash and short-term instruments approximate those assets’ fair values.
Securities
The fair value of securities available for sale (carried at fair value) and held to maturity (carried at amortized cost) are determined by obtaining quoted market prices on nationally recognized securities exchanges (Level 1), or matrix pricing (Level 2), which is a mathematical technique used widely in the industry to value debt securities without relying exclusively on quoted market prices for the specific securities but rather by relying on the securities’ relationship to other benchmark quoted prices. For certain securities which are not traded in active markets or are subject to transfer restrictions, valuations are adjusted to reflect illiquidity and/or non-transferability, and such adjustments are generally based on available market evidence (Level 3). In the absence of such evidence, management’s best estimate is used. Management’s best estimate consists of both internal and external support on certain Level 3 investments. Internal cash flow models using a present value formula that includes assumptions market participants would use along with indicative exit pricing obtained from broker/dealers (where available) were used to support fair values of certain Level 3 investments, if applicable.
Loans Receivable
The fair values of loans are estimated using discounted cash flow analyses, using market rates at the balance sheet date that reflect the credit and interest rate-risk inherent in the loans. Projected future cash flows are calculated based upon contractual maturity or call dates, projected repayments and prepayments of principal.
Impaired Loans
Impaired loans are those that are accounted for under FASB ASC Topic 310, “Receivables”, in which the Company has measured impairment generally based on the fair value of the loan’s collateral. Fair value is generally determined based upon independent third- party appraisals of the properties, or discounted cash flows based upon the expected proceeds. These assets are included as Level 3 fair values, based upon the lowest level of input that is significant to the fair value measurements. Of the total impaired loan portfolio at September 30, 2013 totaling $4.4 million, $769 thousand of originated loans were carried at cost with a fair value of $680 thousand and a specific reserve allocation of $89 thousand; $640 thousand of originated loans were carried at cost with no specific reserve allocation as the fair value of the collateral exceeded the carrying value; and $3.0 million of acquired loans were carried at fair value. As of December 31, 2012 total impaired loans were $10.7 million, net of a valuation allowance of $616 thousand.
Other Real Estate Owned
Other real estate owned consists of properties acquired as a result of accepting a deed in lieu of foreclosure, foreclosure or through other means related to collateral on Bank loans. Costs relating to the development or improvement of assets are capitalized, and costs relating to holding the property are charged to expense. The Company had $907 thousand and $184 thousand of other real estate owned at September 30, 2013 and December 31, 2012, respectively. Fair value is generally determined based upon independent third-party appraisals of the properties.
Repossessed Assets
Repossessed assets consist of personal property, specifically manufactured housing, that has been acquired for debts previously contracted and are included in other assets on the balance sheet. Costs relating to these assets are charged to expense. The Company had $75 thousand of repossessed assets as of September 30, 2013. There were no repossessed assets at December 31, 2012.
Restricted Investment in Bank Stock
The carrying amount of restricted investment in bank stock approximates fair value, and considers the limited marketability of such securities.
Accrued Interest Receivable and Payable
The carrying amount of accrued interest receivable and accrued interest payable approximates fair value.
Deposit Liabilities
The fair values disclosed for demand deposits (interest and noninterest checking), money market and savings accounts are, by definition, equal to the amount payable on demand at the reporting date (i.e., their carrying amounts). Fair values for fixed-rate certificates of deposit are estimated using a discounted cash flow calculation that applies interest rates currently being offered in the market to the maturities of the time deposits.
Short-Term Borrowings
The carrying amounts of short-term borrowings approximate their fair values.
Long-Term Debt
Fair values of FHLB advances are estimated using discounted cash flow analysis, based on quoted prices for new FHLB advances with similar credit risk characteristics, terms and remaining maturity. These prices obtained from this active market represent a market value that is deemed to represent the transfer price if the liability were assumed by a third party.
Off-Balance Sheet Financial Instruments
Fair values for the Company’s off-balance sheet financial instruments (lending commitments and letters of credit) are based on fees currently charged in the market to enter into similar agreements, taking into account, the remaining terms of the agreements and the counterparties’ credit standing.
At September 30, 2013 and December 31, 2012, the estimated fair values of the Company’s financial instruments were as follows:
		September 30, 2013
		Carrying		Fair Value			Level 1		Level 2		Level 3
		Amount
		(Dollars in thousands)
Assets:
Cash and cash equivalents		$	19,082	$	19,082		$	19,082	$	—	$	—
Securities available for sale			55,691		55,691			27		55,664		—
Securities held to maturity			11,005		10,428			—		10,428		—
Loans receivable, net			329,961		336,641			—		—		336,641
Restricted stock			2,461		2,461			—		2,461		—
Accrued interest receivable			1,423		1,423			—		1,423		—
Liabilities:
Deposits			340,835		342,183			—		342,183		—
Short-term borrowings			26,875		26,875			—		26,875		—
Long-term debt			11,000		10,806			—		10,806		—
Accrued interest payable			460		460			—		460		—
Off-balance sheet credit related instruments:
Commitments to extend credit			—		—			—		—		—
		December 31, 2012
		Carrying		Fair Value			Level 1		Level 2		Level 3
		Amount
		(Dollars in thousands)
Assets:
Cash and cash equivalents		$	11,016	$	11,016		$	11,016	$	—	$	—
Securities available for sale			16,079		16,679			140		16,539		—
Loans receivable, net			241,815		245,493			—		—		245,493
Restricted stock			1,337		1,337			—		1,337		—
Accrued interest receivable			1,040		1,040			—		1,040		—
Liabilities:
Deposits			233,043		235,563			—		235,563		—
Long-term debt			13,000		12,902			—		12,902		—
Accrued interest payable			378		378			—		378		—
Off-balance sheet credit related instruments:
Commitments to extend credit			—		—			—		—		—

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Organization and Nature of Operations	'
	Organization and Nature of Operations
	First Priority Financial Corp.
	First Priority Financial Corp. (“First Priority”, the “Company”) was incorporated under the laws of the Commonwealth of Pennsylvania on February 13, 2007, for the purpose of becoming the holding company of First Priority Bank (the “Bank”) and had no prior operating history. On May 11, 2007, as a result of a reorganization and merger where each outstanding share of First Priority Bank common stock and each outstanding warrant to acquire a share of First Priority Bank common stock were converted into one share of First Priority common stock and one warrant to acquire First Priority common stock, First Priority Bank became a wholly- owned subsidiary of First Priority.
	On February 29, 2008, First Priority acquired Prestige Community Bank (“Prestige”) and Prestige merged with and into First Priority Bank.
	On May 23, 2012, First Priority and Affinity Bancorp, Inc. (“Affinity”), the holding company for Affinity Bank of PA (“Affinity Bank”), jointly announced a definitive agreement to merge their respective holding companies and bank subsidiaries. Subsequently, on February 28, 2013, the merger with Affinity was completed. Total assets acquired as a result of the merger were $175.9 million, including $77.4 million in loans, and deposits of $150.9 million. Affinity operated five branch offices within the Berks County, Pennsylvania market. Under the terms of the merger agreement, shareholders of Affinity received 0.9813 newly issued shares of First Priority in exchange for each Affinity share. A total of 1,915,942 shares of First Priority common stock were issued in connection with the merger. Also, in conjunction with the completion of the merger, the Company also issued 1,268,576 shares of First Priority common stock as part of a private placement offering resulting in incremental net equity proceeds of $6.6 million.
	First Priority provides banking services through First Priority Bank and does not engage in any activities other than banking and related activities. As of September 30, 2013, First Priority had total assets of $427.4 million and total shareholders’ equity of $42.2 million.
	First Priority Bank
	First Priority Bank is a state-chartered commercial banking institution which was incorporated under the laws of the Commonwealth of Pennsylvania on May 25, 2005. First Priority Bank’s deposits are insured by the FDIC up to the maximum amount permitted for all banks. As of September 30, 2013, First Priority Bank had total assets of $427.3 million, total loans of $332.2 million, total deposits of $341.9 million and total shareholder’s equity of $41.5 million.
	First Priority Bank engages in a full service commercial and consumer banking business with strong private banking and individual wealth management services. First Priority Bank offers a variety of consumer, private banking and commercial loans, mortgage products and commercial real estate financing. First Priority Bank does not engage in sub-prime lending. The Company’s operations are significantly affected by prevailing economic conditions, competition, and the monetary, fiscal, and regulatory policies of governmental agencies. Lending activities are influenced by a number of factors, including the general credit needs of individuals and small and medium-sized businesses in the Company’s market area, competition, the current regulatory environment, the level of interest rates, and the availability of funds. Deposit flows and costs of funds are influenced by prevailing market rates of interest, competition, account maturities, and the level of personal income and savings in the market area.
	First Priority Bank also offers certain financial planning and investment management services. These investment services are provided by First Priority Financial Services, a Division of First Priority Bank, through an agreement with a third party provider. In addition, various life insurance products are offered through First Priority Bank, and the Bank has also entered into solicitation agreements with several investment advisors to provide portfolio management services for introduced customers of the Bank.
	The ability to originate loans and build a sound, growing loan portfolio is critically important to the success of First Priority Bank. The Bank provides highly customized loan products offered with excellent service and expertise with a goal of timely responsiveness within the market, and delivers these products and quality services through a staff of highly experienced lenders who are properly supported in the marketplace by seasoned management. The Bank’s lenders provide true relationship banking based upon a deep understanding of client needs, personal service, prompt decision making and customized banking solutions.
	First Priority Bank currently seeks deposits and commercial and private banking relationships through its ten banking offices. The Bank provides deposit products that include checking, money market and savings accounts, and certificates of deposit as well as other deposit services, including cash management and electronic banking products and online account opening capabilities. The Bank obtains funding in the local community by providing excellent service and competitive rates to its customers and utilizes electronic and print media advertising to attract current and potential deposit customers. The Bank also uses brokered certificates of deposit as a cost effective funding alternative.
Basis of Presentation	'
	Basis of Presentation
	The accompanying unaudited consolidated financial statements were prepared in accordance with instructions to Form 10-Q, and therefore, do not include information or all footnotes necessary for a complete presentation of financial position, results of operations and cash flows in conformity with accounting principles generally accepted in the United States (“GAAP”). However, all normal recurring adjustments that, in the opinion of management, are necessary for a fair presentation of these financial statements have been included. These financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto for First Priority Financial Corp. for the year ended December 31, 2012, included in the Company’s Form 10-K filed with the Securities and Exchange Commission on April 9, 2013. The results of interim periods presented are not necessarily indicative of the results that may be expected for the year ending December 31, 2013.
	The accompanying unaudited consolidated financial statements consist of the parent company, First Priority Financial Corp. and its consolidated wholly owned subsidiary, First Priority Bank. The consolidated balance sheets and related statements of income of the Company are substantially the same as the consolidated balance sheets and related statements of income of the Bank. All significant intercompany accounts and transactions have been eliminated in consolidation.
Acquired Loans	'
	Acquired Loans
	Acquired loans are initially recorded at their acquisition date fair values. The carryover of allowance for loan losses is prohibited as any credit losses in the loans are included in the determination of the fair value of the loans at the acquisition date. Fair values for acquired loans are based on a discounted cash flow methodology that involves assumptions and judgments as to credit risk, prepayment risk, liquidity risk, default rates, loss severity, payment speeds, collateral values and discount rate.
	For acquired loans that are not deemed impaired at acquisition, credit discounts representing principal losses expected over the life of the loan are a component of the initial fair value. Subsequent to the acquisition date, the methods used to estimate the required allowance for loan losses for these loans is similar to originated loans. However, the Company records a provision for loan losses only when the required allowance exceeds any remaining credit discount. The remaining differences between the acquisition date fair value and the unpaid principal balance at the date of acquisition are recorded in interest income over the life of the loan.
	Acquired loans that have evidence of deterioration in credit quality since origination and for which it is probable, at acquisition, that the Company will be unable to collect all contractually required payments are accounted for as impaired loans under ASC 310-30. The excess of cash flows expected at acquisition over the estimated fair value is referred to as the accretable discount and is recognized into interest income over the remaining life of the loans. The difference between contractually required payments at acquisition and the cash flows expected to be collected at acquisition is referred to as the non-accretable discount. The non-accretable discount represents estimated future credit losses expected to be incurred over the life of the loan. Subsequent decreases to the expected cash flows require the Company to evaluate the need for an allowance for loan losses on these loans. Subsequent improvements in expected cash flows result in the reversal of a corresponding amount of the non-accretable discount which the Company then reclassifies as an accretable discount that is recognized into interest income over the remaining life of the loans using the interest method.
	Acquired loans that met the criteria for non-accrual of interest prior to acquisition may be considered performing upon acquisition, or in the future, regardless of whether the customer is contractually delinquent, if the Company can reasonably estimate the timing and amount of the expected cash flows on such loans and if the Company expects to fully collect the new carrying value of the loans. As such, the Company may no longer consider the loan to be non-accrual or non-performing and may accrue interest on these loans, including the impact of any accretable discount. For acquired loans that are not deemed impaired at acquisition, credit discounts representing the principal losses expected over the life of the loan are a component of the initial fair value and amortized over the life of the asset. Subsequent to the acquisition date, the methods utilized to estimate the required allowance for loan losses for these loans is similar to originated loans, however, the Company records a provision for loan losses only when the required allowance exceeds any remaining pooled discounts for loans evaluated collectively for impairment.
Allowances for Loan Losses	'
	Allowance for Loan Losses
	The allowance for credit losses consists of the allowance for loan losses and the reserve for unfunded lending commitments. The allowance for loan losses represents management’s estimate of losses inherent in the loan portfolio as of the balance sheet date and is recorded as a reduction to loans. The reserve for unfunded lending commitments represents management’s estimate of losses inherent in its unfunded loan commitments and is recorded in other liabilities on the consolidated balance sheet. The allowance for loan losses is increased by the provision for loan losses, and decreased by charge-offs, net of recoveries. Loans deemed to be uncollectible are charged against the allowance for loan losses, and subsequent recoveries, if any, are credited to the allowance. All, or part, of the principal balance of loans receivable are charged off to the allowance as soon as it is determined that the repayment of all, or part, of the principal balance is highly unlikely. Because all identified losses are immediately charged off, no portion of the allowance for loan losses is restricted to any individual loan or groups of loans, and the entire allowance is available to absorb any and all loan losses.
	The allowance for loan losses is maintained at a level considered adequate to provide for losses that can be reasonably anticipated. Management performs a quarterly evaluation of the adequacy of the allowance. The allowance is based on the Company’s past loan loss experience, known and inherent risks in the portfolio, adverse situations that may affect the borrower’s ability to repay, the estimated value of any underlying collateral, composition of the loan portfolio, current economic conditions and other relevant factors. This evaluation is inherently subjective as it requires material estimates that may be susceptible to significant revision as more information becomes available.
	The allowance consists of specific, general and unallocated components. The specific component relates to loans that are classified as impaired. For loans that are classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers pools of loans by loan class including commercial loans not considered impaired, as well as smaller balance homogeneous loans, such as residential real estate, home equity and other consumer loans. These pools of loans are evaluated for loss exposure based upon historical loss rates for each of these categories of loans, adjusted for qualitative factors. These qualitative risk factors include:
	1	Lending policies and procedures, including underwriting standards and collection, charge-off, and recovery practices.
	2	National, regional, and local economic and business conditions as well as the condition of various market segments, including the value of underlying collateral for collateral dependent loans.
	3	Nature and volume of the portfolio and terms of loans.
	4	Management team with experience, depth, and knowledge in banking and in many areas of lending. Each contributes to the sound credit culture and control within the Bank.
	5	Volume and severity of past due, classified and nonaccrual loans as well as and other loan modifications.
	6	The Bank engages a third party to perform an independent review of the loan portfolio as a measure for quality and consistency in credit evaluation and credit decisions.
	7	Existence and effect of any concentrations of credit and changes in the level of such concentrations.
	8	Effect of external factors, such as competition and legal and regulatory requirements.
	Each factor is assigned a value to reflect improving, stable or declining conditions based on management’s best judgment using relevant information available at the time of the evaluation. Adjustments to the factors are supported through documentation of changes in conditions in a narrative accompanying the allowance for loan loss calculation.
	A majority of the Bank’s loans are to business owners of many types. The Bank makes commercial loans for real estate development and other business purposes required by our customers.
	The Bank’s credit policies determine advance rates against the different forms of collateral that can be pledged against commercial loans. Typically, the majority of loans will be limited to a percentage of their underlying collateral values such as real estate values, equipment, eligible accounts receivable and inventory. Individual loan advance rates may be higher or lower depending upon the financial strength of the borrower and/or term of the loan. The assets financed through commercial loans are used within the business for its ongoing operation. Repayment of these kinds of loans generally comes from the cash flow of the business or the ongoing conversions of assets. Commercial real estate loans include long-term loans financing commercial properties. Repayment of this kind of loan is dependent upon either the ongoing cash flow of the borrowing entity or the resale of or lease of the subject property. Commercial real estate loans typically require a loan to value ratio of not greater than 80% and vary in terms.
	Residential mortgages and home equity loans are secured by the borrower’s residential real estate in either a first or second lien position. Residential mortgages and home equity loans have varying loan rates depending on the financial condition of the borrower and the loan to value ratio. Residential mortgages have amortizations up to 30 years and home equity loans have maturities up to 10 years.
	Other consumer loans include installment loans, car loans, and overdraft lines of credit. The majority of these loans are secured.
	An unallocated component of the allowance for loan losses is maintained to cover uncertainties that could affect management’s estimate of probable losses. The unallocated component of the allowance reflects the margin of imprecision inherent in the underlying assumptions used in the methodologies for estimating specific and general losses in the portfolio.
	A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case- by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record and the amount of the shortfall in relation to the principal and interest owed. Impairment is measured on a loan by loan basis for commercial and industrial loans, commercial real estate loans and commercial construction loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate or the fair value of the collateral if the loan is collateral dependent.
	An allowance for loan losses is established for an impaired loan if its carrying value exceeds its estimated fair value. The estimated fair values of substantially all of the Company’s impaired loans are measured based on the estimated fair value of the loan’s collateral.
	For commercial loans secured by real estate, estimated fair values are determined primarily through third-party appraisals. When a real estate secured loan becomes impaired, a decision is made regarding whether an updated certified appraisal of the real estate is necessary. This decision is based on various considerations, including the age of the most recent appraisal, the loan-to-value ratio based on the original appraisal and the condition of the property. Appraised values may be discounted to arrive at the estimated selling price of the collateral, which is considered to be the estimated fair value. The discounts also include estimated costs to sell the property.
	For commercial and industrial loans secured by non-real estate collateral, such as accounts receivable, inventory and equipment, estimated fair values are determined based on the borrower’s financial statements, inventory reports, accounts receivable aging or equipment appraisals or invoices. Indications of value from these sources are generally discounted based on the age of the financial information or the quality of the assets.
	Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. Accordingly, the Company does not separately identify individual residential mortgage loans, home equity loans and other consumer loans for impairment disclosures, unless such loans are the subject of a troubled debt restructuring agreement.
	Acquired loans are recorded at acquisition date at their acquisition date fair values, and therefore, are excluded from the calculation of loan loss reserves as of the acquisition date. To the extent there is a decrease in the present value of cash flows expected from the acquired impaired loans after the date of acquisition, the Company records a provision for potential losses. During the three and nine months ended September 30, 2013, the Company recorded a provision for loan losses totaling $89 thousand for acquired impaired loans. There were no acquired loans as of September 30, 2012.
	For acquired loans that are not deemed impaired at acquisition, credit discounts representing the principal losses expected over the life of the loan are a component of the initial fair value. Subsequent to the acquisition date, the methods utilized to estimate the required allowance for loan losses for these loans is similar to originated loans, however, the Company records a provision for loan losses only when the required allowance exceeds any remaining pooled discounts for loans evaluated collectively for impairment. During the nine months ended September 30, 2013, the Company recorded a provision for loan losses totaling $118 thousand on acquired non-impaired loans. There were no acquired loans as of September 30, 2012.
	The allowance calculation methodology includes further segregation of loan classes into risk rating categories. The borrower’s overall financial condition, repayment sources, guarantors and value of collateral, if appropriate, are evaluated annually for commercial loans or when credit deficiencies arise, such as delinquent loan payments, for commercial and consumer loans. Credit quality risk ratings include regulatory classifications of special mention, substandard, doubtful and loss. Loans criticized special mention have potential weaknesses that deserve management’s close attention. If uncorrected, the potential weaknesses may result in deterioration of the repayment prospects. Loans classified substandard have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They include loans that are inadequately protected by the current sound net worth and paying capacity of the obligor or of the collateral pledged, if any. Loans classified doubtful have all the weaknesses inherent in loans classified substandard with the added characteristic that collection or liquidation in full, on the basis of current conditions and facts, is highly improbable. Loans classified as a loss are considered uncollectible and are charged to the allowance for loan losses. Loans not classified are rated pass.
	In addition, Federal regulatory agencies, as an integral part of their examination process, periodically review the Company’s allowance for loan losses and may require the Company to recognize additions to the allowance based on their judgments about information available to them at the time of their examination, which may not be currently available to management. Based on management’s comprehensive analysis of the loan portfolio, management believes the current level of the allowance for loan losses is adequate.
Subsequent Events	'
	Subsequent Events
	The Company has evaluated subsequent events for potential recognition and/or disclosure through the date that these financial statements were issued.
Estimates	'
	Estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, stock-based compensation, impairment of goodwill, impairment of investments and restricted investments in bank stocks and the valuation of deferred tax assets and other real estate owned.
Restricted Investments in Bank Stocks	'
	Restricted Investments in Bank Stocks
	Restricted investments in bank stocks, which represents the required investment in the common stock of correspondent banks, are carried at cost and consist of stock of the Federal Home Loan Bank of Pittsburgh (“FHLB”) and Atlantic Central Bankers Bank. Federal law requires a member institution of the FHLB to hold FHLB stock according to a predetermined formula. Management’s determination of whether these investments are impaired is based on management’s assessment of the ultimate recoverability of their cost rather than by recognizing temporary declines in value.
Recently Issued Accounting Standards	'
	In February 2013, the Financial Accounting Standards Board, or FASB issued Accounting Standards Update (ASU) 2013-02, “Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income”. ASU 2013-02 requires reporting the effect of significant reclassifications out of accumulated other comprehensive income by component on the respective line items in the income statement parenthetically or in the notes to the financial statements if the amounts being reclassified are required under U.S. GAAP to be reclassified in their entirety to net income. This ASU is effective for public companies prospectively for fiscal years, and interim periods within those years, beginning after December 15, 2012 and early adoption is permitted. The adoption of ASU 2013- 02 did not have an impact on our results of operations or financial position.
	In January 2013, the FASB issued ASU 2013-01, “Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities” in order to clarify the scope of ASU 2011-11, “Disclosures About Offsetting Assets and Liabilities”, issued in December 2011. ASU 2011-11 required entities to disclose both gross and net information about instruments and transactions eligible for offset in the statement of financial position and instruments and transactions subject to an agreement similar to a master netting arrangement. This ASU was issued to allow investors to better compare financial statements prepared under U.S. GAAP with financial statements prepared under International Financial Reporting Standards, or IFRS. ASU 2013-01 clarified that ASU 2011-11 applies to derivatives, sale and repurchase agreements and reverse sale of repurchase agreements, and securities borrowing and securities lending arrangements, but does not apply to standard commercial contracts allowing either party to net in the event of default or to broker- dealer unsettled regular-way trades. Both ASUs are effective for public companies retrospectively for fiscal years, and interim periods within those years, beginning on or after January 1, 2013. The adoption of ASU 2013-02 and ASU 2011-11 did not have an impact on our results of operations or financial position.
	In February 2013, the FASB issued ASU 2013-04 “Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation is fixed at the Reporting Date”. The ASU requires the measurement of obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement with its co-obligors as well as any additional amount that the entity expects to pay on behalf of its co-obligors. The new standard is effective retrospectively for fiscal years and interim periods within those years, beginning after December 15, 2013, and early adoption is permitted. We are currently evaluating the implications of ASU 2013-04.

Merger_with_Affinity_Bancorp_I1

Merger with Affinity Bancorp, Inc. (Tables)	9 Months Ended
	Sep. 30, 2013
Business Combinations [Abstract]	'
Schedule of Acquired Assets and Liabilities	'
	The fair value estimates are subject to change for up to one year after the closing date of the transaction if additional information relative to the closing date fair values becomes available. As the Company continues to analyze the acquired assets and liabilities, there may be adjustments to the recorded carrying values.
	(In thousands, except share and per share data)	February 28, 2013
	Purchase Price Consideration in Common Stock
	Affinity common shares settled for stock		1,952,644
	Exchange ratio		0.9813
	First Priority shares issued		1,915,942
	Fair value assigned to First Priority’s common shares	$	5.22
	Acquisition cost of Affinity common shares exchanged for First Priority Stock—Total Acquisition cost			$	10,001
	Acquisition cost of Consideration—Affinity Options Rolled over to First Priority Options				44
	Total Acquisition cost				10,045
	Identifiable assets:
	Cash and due from banks	$	24,419
	Securities available for sale		33,253
	Loans and leases		77,359
	Intangible assets		582
	Other assets		38,738
	Total identifiable assets				174,351
	Liabilities:
	Deposits	$	150,904
	Long-term borrowings		14,358
	Other liabilities		575
	Total liabilities				165,837
	Net goodwill resulting from merger			$	1,531
Summary of Acquired Impaired Loans	'
	The following is a summary of the acquired impaired loans resulting from the merger with Affinity (dollars in thousands):
		Acquired Impaired Loans
	Contractually required principal and interest at acquisition	$	5,577
	Contractual cash flows not expected to be collected		2,441
	Expected cash flows at acquisition		3,136
	Interest component of expected cash flows		359
	Basis in acquired loans at acquisition—estimated fair value	$	2,777
Schedule of Amortization Expense for Core Deposit Intangible	'
	The following table shows amortization expense for the core deposit intangible for the next 5 years:
	In thousands
	Nine months Ended September 30, 2013	$	62
	Nine months Ended September 30, 2012		—
	Remainder of 2013:		26
	2014		97
	2015		86
	2016		76
	2017		65
	2018		55
Summary of Merger Related Costs	'
	A summary of merger related costs included in the consolidated statements of income follows (dollars in thousands):
		Three Months				Nine Months
		Ended September 30,				Ended September 30,
		2013		2012		2013		2012
	Accounting	$	—	$	62	$	26	$	67
	Branch consolidation		—		—		103		—
	Investment banking		—		—		350		—
	Investor & customer document printing and filing		35		14		153		14
	Legal		—		109		5		247
	Purchase accounting consulting		—		—		50		—
	Salaries and employee benefits		83		—		83		—
	System contract termination		—		—		314		—
	System conversion/deconversion costs		206		—		450		—
		$	324	$	185	$	1,534	$	328
Summary of Unaudited Pro Forma Information	'
	The following table presents unaudited pro forma information as if the merger between First Priority and Affinity had been completed on January 1, 2012.
		For the three months				For the nine months
		ended September 30,				ended September 30,
		2013				2013
		(Dollars in thousands)
		2013		2012		2013		2012
	Total revenue, consisting of net interest income plus non-interest income	$	4,220	$	3,992	$	13,054	$	12,302
	Net income (loss)	$	527	$	418	$	1,870	$	(619	)

Earnings_Loss_Per_Common_Share1

Earnings (Loss) Per Common Share (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Schedule of Calculations of Basic and Diluted Earnings (Loss) Per Common Share	'
	The calculations of basic and diluted earnings (loss) per common share are presented below for the three and nine months ended September 30, 2013 and 2012:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		(In thousands, except per						(In thousands, except per
		share information)						share information)
		2013			2012			2013			2012
	Net income (loss)	$	87		$	218		$	(506	)	$	551
	Less: preferred stock dividends		(119	)		(119	)		(359	)		(359	)
	Less: net discount accretion on preferred stock		(14	)		(13	)		(40	)		(40	)
	Income (loss) to common shareholders	$	(46	)	$	86		$	(905	)	$	152
	Average basic common shares outstanding		6,332			3,144			5,641			3,144
	Effect of dilutive stock options		—			8			—			13
	Average number of common shares used to calculate diluted earnings per common share		6,332			3,152			5,641			3,157
	Basic earnings (loss) per common share	$	(0.01	)	$	0.03		$	(0.16	)	$	0.05
	Diluted earnings (loss) per common share	$	(0.01	)	$	0.03		$	(0.16	)	$	0.05
Schedule of Amount of Preferred Stock Dividends and Net Accretion or Amortization Related to Each Series of Preferred Stock	'
	The amount of preferred stock dividends and the net accretion or amortization related to each series of preferred stock is presented below for the three and nine months ended September 30, 2013 and 2012:
		For the three months ended						For the nine months ended
		September 30,						September 30,
		2013			2012			2013			2012
		(Dollars in thousands)						(Dollars in thousands)
	Preferred dividends:
	Preferred Series A	$	57		$	57		$	172		$	172
	Preferred Series B		5			5			15			15
	Preferred Series C		57			57			172			172
	Total preferred dividends	$	119		$	119		$	359		$	359
	Net accretion (amortization) on preferred stock:
	Preferred Series A	$	(14	)	$	(14	)	$	(43	)	$	(43	)
	Preferred Series B		2			2			5			5
	Preferred Series C		(2	)		(1	)		(2	)		(2	)
	Total net accretion (amortization) on preferred stock	$	(14	)	$	(13	)	$	(40	)	$	(40	)

Securities_Tables

Securities (Tables)	9 Months Ended
	Sep. 30, 2013
Investments Debt And Equity Securities [Abstract]	'
Summary of Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Company's Investment Securities Available for Sale	'
		As of September 30, 2013
		Amortized		Gross		Gross			Estimated Fair
		Cost		Unrealized		Unrealized			Value
				Gains		Losses
		(Dollars in thousands)
	Available For Sale:
	Obligations of U.S. government agencies and corporations	$	24,612	$	12	$	(408	)	$	24,216
	Obligations of states and political subdivisions		8,347		—		(396	)		7,951
	Federal agency mortgage-backed securities		21,513		164		(256	)		21,421
	Federal agency collateralized mortgage obligations		855		6		(7	)		854
	Other debt securities		1,253		1		(32	)		1,222
	Money market mutual fund		27		—		—			27
	Total investment securities available for sale	$	56,607	$	183	$	(1,099	)	$	55,691
		As of December 31, 2012
		Amortized		Gross		Gross			Estimated Fair
		Cost		Unrealized		Unrealized			Value
				Gains		Losses
		(Dollars in thousands)
	Available For Sale:
	Obligations of U.S. government agencies and corporations	$	1,000	$	1	$	—		$	1,001
	Obligations of states and political subdivisions		11,304		585		(32	)		11,857
	Federal agency mortgage-backed securities		3,552		129		—			3,681
	Money market mutual fund		140		—		—			140
	Total investment securities available for sale	$	15,996	$	715	$	(32	)	$	16,679
Summary of Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Company's Investment Securities Held to Maturity	'
	Held To Maturity:
	Obligations of states and political subdivisions	$	11,005	$	1	$	(578	)	$	10,428
	Total held to maturity	$	11,005	$	1	$	(578	)	$	10,428
Summary of Amortized Cost and Fair Value of Securities by Contractual Maturity	'
	The amortized cost and fair value of securities as of September 30, 2013 by contractual maturity are shown below. Certain of these investment securities have call features which allow the issuer to call the security prior to its maturity date at the issuer’s discretion.
		September 30, 2013				September 30, 2013
		Available for Sale Securities				Held to Maturity
		Amortized Cost		Fair Value		Amortized Cost			Fair Value
		(Dollars in thousands)				(Dollars in thousands)
	Due within one year	$	251	$	251	$	—		$	—
	Due after one year through five years		13,505		13,358		—			—
	Due after five years through ten years		19,188		18,795		1,594			1,537
	Due after ten years		23,636		23,260		9,411			8,891
			56,580		55,664		11,005			10,428
	Money market mutual fund		27		27		—			—
	Total	$	56,607	$	55,691	$	11,005		$	10,428

Loans_Receivable_and_Related_A1

Loans Receivable and Related Allowance for Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2013
Receivables [Abstract]	'
Summary of Loans Receivable	'
	Loans receivable consist of the following at September 30, 2013 and December 31, 2012. For presentation, originated loans exclude loans acquired through the merger with Affinity consummated on February 28, 2013, and acquired loans include loans acquired through the merger with Affinity as of this same date.
		September 30,			December 31,
		2013			2012
		(Dollars in thousands)
	Commercial:
	Commercial and industrial	$	79,038		$	62,366
	Commercial mortgage		139,287			93,775
	Commercial construction		3,671			4,112
	Total commercial		221,996			160,253
	Residential mortgage loans		56,780			49,354
	Consumer:
	Home equity lines of credit		31,286			20,654
	Other consumer loans		22,464			14,298
	Total consumer		53,750			34,952
	Total loans		332,526			244,559
	Allowance for loan losses		(2,236	)		(2,460	)
	Net deferred loan fees		(329	)		(284	)
	Total loans receivable, net	$	329,961		$	241,815
	Originated loans	$	278,843		$	244,559
	Acquired loans		53,683			—
	Total loans	$	332,526		$	244,559
Activity in Allowance for Loan Losses by Loan Class	'
	The following tables summarize the activity in the allowance for loan losses by loan class for the three and nine months ended September 30, 2013 and 2012:
		For the three months ended													For the nine months ended
		September 30, 2013													September 30, 2013
		Allowance for Loan Losses													Allowance for Loan Losses
		(Dollars in thousands)													(Dollars in thousands)
		Beginning			Charge-			Recoveries		Provision			Ending		Beginning		Charge-			Recoveries		Provision			Ending
		Balance			offs					for loan			Balance		Balance		offs					for loan			Balance
										losses												losses
	Commercial and industrial	$	431		$	—		$	11	$	(49	)	$	393	$	566	$	(339	)	$	19	$	147		$	393
	Commercial mortgage		389			(137	)		—		202			454		559		(137	)		—		32			454
	Commercial construction		30			—			—		(22	)		8		31		—			—		(23	)		8
	Residential mortgage loans		145			(6	)		—		9			148		176		(14	)		7		(21	)		148
	Home equity lines of credit		180			(86	)		—		82			176		89		(332	)		—		419			176
	Other consumer loans		61			(9	)		4		20			76		41		(9	)		11		33			76
	Unallocated		993			—			—		(12	)		981		998		—			—		(17	)		981
	Total loans	$	2,229		$	(238	)	$	15	$	230		$	2,236	$	2,460	$	(831	)	$	37	$	570		$	2,236
	Commercial and industrial	$	431		$	—		$	3	$	(41	)	$	393	$	566	$	(339	)	$	1	$	165		$	393
	Commercial mortgage		389			—			—		65			454		559		—			—		(105	)		454
	Commercial construction		30			—			—		(22	)		8		31		—			—		(23	)		8
	Residential mortgage loans		145			—			—		3			148		176		(5	)		7		(30	)		148
	Home equity lines of credit		180			—			—		(4	)		176		89		(246	)		—		333			176
	Other consumer loans		61			(9	)		2		22			76		41		(9	)		4		40			76
	Unallocated		993			—			—		(12	)		981		998		—			—		(17	)		981
	Total originated loans	$	2,229		$	(9	)	$	5	$	11		$	2,236	$	2,460	$	(599	)	$	12	$	363		$	2,236
	Commercial and industrial	$	—		$	—		$	8	$	(8	)	$	—	$	—	$	—		$	18	$	(18	)	$	—
	Commercial mortgage		—			(137	)		—		137			—		—		(137	)		—		137			—
	Commercial construction		—			—			—		—			—		—		—			—		—			—
	Residential mortgage loans		—			(6	)		—		6			—		—		(9	)		—		9			—
	Home equity lines of credit		—			(86	)		—		86			—		—		(86	)		—		86			—
	Other consumer loans		—			—			2		(2	)		—		—		—			7		(7	)		—
	Unallocated		—			—			—		—			—		—		—			—		—			—
	Total acquired loans	$	—		$	(229	)	$	10	$	219		$	—	$	—	$	(232	)	$	25	$	207		$	—
		For the three months ended													For the nine months ended
		September 30, 2012													September 30, 2012
		Allowance for Loan Losses													Allowance for Loan Losses
		(Dollars in thousands)													(Dollars in thousands)
		Beginning			Charge-			Recoveries		Provision			Ending		Beginning		Charge-			Recoveries		Provision			Ending
		Balance			offs					for loan			Balance		Balance		offs					for loan			Balance
										losses												losses
	Commercial and industrial	$	1,090		$	(7	)	$	1	$	(279	)	$	805	$	1,404	$	(207	)	$	2	$	(394	)	$	805
	Commercial mortgage		209			—			—		274			483		198		—			—		285			483
	Commercial construction		10			—			—		1			11		10		—			—		1			11
	Residential mortgage loans		161			—			—		5			166		190		—			—		(24	)		166
	Home equity lines of credit		51			—			—		(1	)		50		94		(190	)		—		146			50
	Other consumer loans		28			—			1		2			31		34		—			17		(20	)		31
	Unallocated		878			—			—		78			956		540		—			—		416			956
	Total loans	$	2,427		$	(7	)	$	2	$	80		$	2,502	$	2,470	$	(397	)	$	19	$	410		$	2,502
Balance in Allowance for Loan Losses Disaggregated on Basis of Company's Impairment Method	'
	The following tables present the balance in the allowance for loan losses at September 30, 2013 and December 31, 2012 disaggregated on the basis of the Company’s impairment method by class of loans receivable along with the balance of loans receivable by class disaggregated on the basis of the Company’s impairment methodology:
		September 30, 2013
		Allowance for Loan Losses								Loans Receivables
		(Dollars in thousands)
		Ending			Ending			Ending		Ending			Ending		Ending
		Balance			Balance			Balance		Balance			Balance		Balance
					Individually			Collectively					Individually		Collectively
					Evaluated			Evaluated					Evaluated for		Evaluated for
					for			for					Impairment		Impairment
					Impairment			Impairment
	Commercial and industrial	$	393		$	37		$	356	$	79,038		$	1,846	$	77,192
	Commercial mortgage		454			52			402		139,287			1,627		137,660
	Commercial construction		8			—			8		3,671			443		3,228
	Residential mortgage loans		148			—			148		56,780			248		56,532
	Home equity lines of credit		176			—			176		31,286			—		31,286
	Other consumer loans		76			—			76		22,464			268		22,196
	Unallocated		981			—			981		—			—		—
	Total loans	$	2,236		$	89		$	2,147	$	332,526		$	4,432	$	328,094
	Commercial and industrial	$	393		$	37		$	356	$	69,464		$	841	$	68,623
	Commercial mortgage		454			52			402		121,190			519		120,671
	Commercial construction		8			—			8		2,839			—		2,839
	Residential mortgage loans		148			—			148		48,987			—		48,987
	Home equity lines of credit		176			—			176		21,531			—		21,531
	Other consumer loans		76			—			76		14,832			49		14,783
	Unallocated		981			—			981		—			—		—
	Total originated loans	$	2,236		$	89		$	2,147	$	278,843		$	1,409	$	277,434
	Commercial and industrial	$	—		$	—		$	—	$	9,574		$	1,005	$	8,569
	Commercial mortgage		—			—			—		18,097			1,108		16,989
	Commercial construction		—			—			—		832			443		389
	Residential mortgage loans		—			—			—		7,793			248		7,545
	Home equity lines of credit		—			—			—		9,755			—		9,755
	Other consumer loans		—			—			—		7,632			219		7,413
	Total acquired loans	$	—		$	—		$	—	$	53,683		$	3,023	$	50,660
		December 31, 2012
		Allowance for Loan Losses								Loans Receivables
		(Dollars in thousands)
		Ending			Ending			Ending		Ending			Ending		Ending
		Balance			Balance			Balance		Balance			Balance		Balance
					Individually			Collectively					Individually		Collectively
					Evaluated			Evaluated					Evaluated for		Evaluated for
					for			for					Impairment		Impairment
					Impairment			Impairment
	Commercial and industrial	$	566		$	315		$	251	$	62,366		$	6,372	$	55,994
	Commercial mortgage		559			244			315		93,775			2,293		91,482
	Commercial construction		31			20			11		4,112			577		3,535
	Residential mortgage loans		176			37			139		49,354			1,040		48,314
	Home equity lines of credit		89			—			89		20,654			406		20,248
	Other consumer loans		41			—			41		14,298			—		14,298
	Unallocated		998			—			998		—			—		—
	Total loans	$	2,460		$	616		$	1,844	$	244,559		$	10,688	$	233,871
Summary of Impaired Loans by Loan Portfolio Class	'
	The following tables summarize information in regard to impaired loans by loan portfolio class as of September 30, 2013 and December 31, 2012 as well as for the periods then ended, respectively:
		September 30, 2013								December 31, 2012
		Recorded			Unpaid			Related		Recorded			Unpaid		Related
		Investment			Principal			Allowance		Investment			Principal		Allowance
					Balance								Balance
		(Dollars in thousands)
	With no related allowance recorded:
	Commercial and industrial	$	1,596		$	3,081		$	—	$	4,635		$	4,707	$	—
	Commercial mortgage		1,108			1,378			—		—			—		—
	Commercial construction		443			885			—		—			—		—
	Residential mortgage loans		248			318			—		908			908		—
	Home equity lines of credit		—			—			—		406			860		—
	Other consumer loans		268			347			—		—			—		—
	With an allowance recorded:
	Commercial and industrial	$	250		$	250		$	37	$	1,737		$	2,120	$	315
	Commercial mortgage		519			521			52		2,293			2,329		244
	Commercial construction		—			—			—		577			604		20
	Residential mortgage loans		—			—			—		132			143		37
	Home equity lines of credit		—			—			—		—			—		—
	Other consumer loans		—			—			—		—			—		—
	Total:
	Commercial and industrial	$	1,846		$	3,331		$	37	$	6,372		$	6,827	$	315
	Commercial mortgage		1,627			1,899			52		2,293			2,329		244
	Commercial construction		443			885			—		577			604		20
	Residential mortgage loans		248			318			—		1,040			1,051		37
	Home equity lines of credit		—			—			—		406			860		—
	Other consumer loans		268			347			—		—			—		—
	Total	$	4,432		$	6,780		$	89	$	10,688		$	11,671	$	616
	With no related allowance recorded:
	Originated loans	$	640		$	1,263		$	—	$	5,949		$	6,475	$	—
	Acquired Loans		3,023			4,746			—		—			—		—
	Total	$	3,663		$	6,009		$	—	$	5,949		$	6,475	$	—
	With an allowance recorded:
	Originated loans	$	769		$	771		$	89	$	4,739		$	5,196	$	616
	Acquired Loans		—			—			—		—			—		—
	Total	$	769		$	771		$	89	$	4,739		$	5,196	$	616
	Total:
	Originated loans	$	1,409		$	2,034		$	89	$	10,688		$	11,671	$	616
	Acquired Loans		3,023			4,746			—		—			—		—
	Total	$	4,432		$	6,780		$	89	$	10,688		$	11,671	$	616
		Three Months Ended September 30,											Nine Months Ended September 30,
		2013						2012					2013				2012
		Average			Interest			Average		Interest			Average		Interest		Average			Interest
		Recorded			Income			Recorded		Income			Recorded		Income		Recorded			Income
		Investment			Recognized			Investment		Recognized			Investment		Recognized		Investment			Recognized
		(Dollars in thousands)
	With no related allowance recorded:
	Commercial and industrial	$	1,754		$	—		$	—	$	—		$	2,988	$	8	$	608		$	17
	Commercial mortgage		982			—			—		—			766		—		—			—
	Commercial construction		468			2			—		—			375		18		—			—
	Residential mortgage loans		491			—			424		8			789		6		212			22
	Home equity lines of credit		255			—			246		1			496		1		293			3
	Other consumer loans		236			—			—		—			174		—		—			—
	With an allowance recorded:
	Commercial and industrial	$	515		$	—		$	5,243	$	12		$	744	$	23	$	5,350		$	36
	Commercial mortgage		464			—			650		18			1,281		—		531			56
	Commercial construction		243			—			—		—			410		12		—			—
	Residential mortgage loans		—			—			136		—			33		—		143			—
	Home equity lines of credit		—			—			—		—			—		—		—			—
	Other consumer loans		—			—			—		—			—		—		—			—
	Total:
	Commercial and industrial	$	2,269		$	—		$	5,243	$	12		$	3,732	$	31	$	5,958		$	53
	Commercial mortgage		1,446			—			650		18			2,047		—		531			56
Commercial construction		711			2			—		—			785		30		—			—
Residential mortgage loans		491			—			560		8			822		6		355			22
Home equity lines of credit		255			—			246		1			496		1		293			3
Other consumer loans		236			—			—		—			174		—		—			—
Total	$	5,408		$	2		$	6,699	$	39		$	8,056	$	68	$	7,137		$	134
Nonaccrual Loans by Classes of Loan Portfolio	'
	The following table presents nonaccrual loans by classes of the loan portfolio as of September 30, 2013 and December 31, 2012:
		September 30,			December 31,
		2013			2012
		(Dollars in thousands)
	Commercial and industrial	$	1,846		$	1,130
	Commercial mortgage		1,627			2,293
	Commercial construction		301			—
	Residential mortgage loans		248			424
	Home equity lines of credit		—			246
	Other consumer loans		268			—
	Total loans	$	4,290		$	4,093
	Commercial and industrial	$	841		$	1,130
	Commercial mortgage		519			2,293
	Commercial construction		—			—
	Residential mortgage loans		—			424
	Home equity lines of credit		—			246
	Other consumer loans		49			—
	Total originated loans	$	1,409		$	4,093
	Commercial and industrial	$	1,005		$	—
	Commercial mortgage		1,108			—
	Commercial construction		301			—
	Residential mortgage loans		248			—
	Home equity lines of credit		—			—
	Other consumer loans		219			—
	Total acquired loans	$	2,881		$	—
Classes of Loan Portfolio within Company's Internal Risk Rating System	'
	The following tables present the classes of the loan portfolio summarized by the aggregate pass rating and the classified ratings of special mention, substandard and doubtful within the Company’s internal risk rating system as of September 30, 2013 and December 31, 2012:
		September 30, 2013
		Pass			Special			Substandard		Doubtful			Total
					Mention
		(Dollars in thousands)
	Commercial:
	Commercial and industrial	$	77,143		$	—		$	1,895	$	—		$	79,038
	Commercial mortgage		137,201			381			1,705		—			139,287
	Commercial construction		3,179			—			492		—			3,671
	Residential mortgage loans		56,518			—			262		—			56,780
	Consumer:
	Home equity lines of credit		31,081			—			205		—			31,286
	Other consumer loans		22,415			—			49		—			22,464
	Total	$	327,537		$	381		$	4,608	$	—		$	332,526
	Commercial:
	Commercial and industrial	$	68,701		$	—		$	763	$	—		$	69,464
	Commercial mortgage		120,212			381			597		—			121,190
	Commercial construction		2,839			—			—		—			2,839
	Residential mortgage loans		48,987			—			—		—			48,987
	Consumer:
	Home equity lines of credit		21,531			—			—		—			21,531
	Other consumer loans		14,783			—			49		—			14,832
	Total originated loans	$	277,053		$	381		$	1,409	$	—		$	278,843
	Commercial:
	Commercial and industrial	$	8,442		$	—		$	1,132	$	—		$	9,574
	Commercial mortgage		16,989			—			1,108		—			18,097
	Commercial construction		340			—			492		—			832
	Residential mortgage loans		7,531			—			262		—			7,793
	Consumer:
	Home equity lines of credit		9,550			—			205		—			9,755
	Other consumer loans		7,632			—			—		—			7,632
	Total acquired loans	$	50,484		$	—		$	3,199	$	—		$	53,683
		December 31, 2012
		Pass			Special			Substandard		Doubtful			Total
					Mention
		(Dollars in thousands)
	Commercial:
	Commercial and industrial	$	55,861		$	818		$	5,687	$	—		$	62,366
	Commercial mortgage		91,482			—			2,293		—			93,775
	Commercial construction		3,535			—			577		—			4,112
	Residential mortgage loans		48,446			—			908		—			49,354
	Consumer:		—
	Home equity lines of credit		20,248			—			406		—			20,654
	Other consumer loans		14,298			—			—		—			14,298
	Total	$	233,870		$	818		$	9,871	$	—		$	244,559
Classes of Loan Portfolio Summarized by Past Due Status	'
	The following tables present the classes of the loan portfolio summarized by the past due status as of September 30, 2013 and December 31, 2012:
		September 30, 2013
		30-59 Days			60-89 Days			Greater		Total Past			Current		Total Loans
		Past Due			Past Due			Than 90		Due					Receivables
								Days
		(Dollars in thousands)
	Commercial:
	Commercial and industrial	$	—		$	—		$	1,126	$	1,126		$	77,912	$	79,038
	Commercial mortgage		396			506			1,103		2,005			137,282		139,287
	Commercial construction		—			—			—		—			3,671		3,671
	Residential mortgage loans		—			—			171		171			56,609		56,780
	Consumer:
	Home equity lines of credit		—			—			—		—			31,286		31,286
	Other consumer loans		29			79			268		376			22,088		22,464
	Total	$	425		$	585		$	2,668	$	3,678		$	328,848	$	332,526
	Commercial:
	Commercial and industrial	$	—		$	—		$	841	$	841		$	68,623	$	69,464
	Commercial mortgage		—			219			519		738			120,452		121,190
	Commercial construction		—			—			—		—			2,839		2,839
	Residential mortgage loans		—			—			—		—			48,987		48,987
	Consumer:
	Home equity lines of credit		—			—			—		—			21,531		21,531
	Other consumer loans		29			79			49		157			14,675		14,832
	Total originated loans	$	29		$	298		$	1,409	$	1,736		$	277,107	$	278,843
	Commercial:
	Commercial and industrial	$	—		$	—		$	285	$	285		$	9,289	$	9,574
	Commercial mortgage		396			287			584		1,267			16,830		18,097
	Commercial construction		—			—			—		—			832		832
	Residential mortgage loans		—			—			171		171			7,622		7,793
	Consumer:
	Home equity lines of credit		—			—			—		—			9,755		9,755
	Other consumer loans		—			—			219		219			7,413		7,632
	Total acquired loans	$	396		$	287		$	1,259	$	1,942		$	51,741	$	53,683
		December 31, 2012
		30-59 Days			60-89 Days			Greater		Total Past			Current		Total Loans
		Past Due			Past Due			Than 90		Due					Receivables
								Days
		(Dollars in thousands)
	Commercial:
	Commercial and industrial	$	—		$	250		$	880	$	1,130		$	61,236	$	62,366
	Commercial mortgage		412			224			1,898		2,534			91,241		93,775
	Commercial construction		—			7			—		—			4,112		4,112
	Residential mortgage loans		—			—			424		431			48,923		49,354
	Consumer:
	Home equity lines of credit		—			—			246		246			20,408		20,654
	Other consumer loans		—			31			—		31			14,267		14,298
	Total	$	412		$	512		$	3,448	$	4,372		$	240,187	$	244,559
Summary of Information Regarding Bank's Troubled Debt Restructurings	'
	The following tables reflect information regarding troubled debt restructurings entered into by the Bank for each respective period:
		For the three months ended								For the nine months ended
		30-Sep-13								30-Sep-13
		Number of			Pre-Modification			Post-Modification		Number of			Pre-Modification		Post-Modification
		Contracts			Outstanding			Outstanding		Contracts			Outstanding		Outstanding
					Recorded			Recorded					Recorded		Recorded
					Investments			Investments					Investments		Investments
		(Dollars in thousands)
	Troubled debt restructurings:
	Commercial and industrial		—		$	—		$	—		—		$	—	$	—
	Commercial mortgage		—			—			—		—			—		—
	Commercial construction		—			—			—		—			—		—
	Residential mortgage loans		1			77			77		1			77		77
	Home equity lines of credit		—			—			—		—			—		—
	Other consumer loans		—			—			—		—			—		—
	Total		1		$	77		$	77		1		$	77	$	77
		For the three months ended								For the nine months ended
		30-Sep-12								30-Sep-12
		Number of			Pre-Modification			Post-Modification		Number of			Pre-Modification		Post-Modification
		Contracts			Outstanding			Outstanding		Contracts			Outstanding		Outstanding
					Recorded			Recorded					Recorded		Recorded
					Investments			Investments					Investments		Investments
		(Dollars in thousands)
	Troubled debt restructurings:
	Commercial and industrial		—		$	—		$	—		2		$	4,583	$	4,183
	Commercial mortgage		—			—			—		—			—		—
	Commercial construction		—			—			—		—			—		—
	Residential mortgage loans		—			—			—		1			144		135
	Home equity lines of credit		—			—			—		1			695		246
	Other consumer loans		—			—			—		—			—		—
	Total		—		$	—		$	—		4		$	5,422	$	4,564

Deposits_Tables

Deposits (Tables)	9 Months Ended
	Sep. 30, 2013
Banking And Thrift [Abstract]	'
Components of Deposits	'
	The components of deposits at September 30, 2013 and December 31, 2012 are as follows:
		September 30, 2013		December 31, 2012
		(Dollars in thousands)
	Demand, non-interest bearing	$	38,070	$	28,176
	Demand, interest-bearing		43,402		9,392
	Money market and savings accounts		108,044		59,636
	Time, $100 and over		45,899		33,049
	Time, other		105,420		102,790
		$	340,835	$	233,043
Scheduled Maturities of Time Deposits	'
	At September 30, 2013, the scheduled maturities of time deposits were as follows:
		September 30, 2013
		(Dollars in thousands)
	9/30/14	$	59,894
	9/30/15		40,167
	9/30/16		23,803
	9/30/17		16,544
	9/30/18		10,899
	Thereafter		12
		$	151,319

Stock_Compensation_Program_Tab

Stock Compensation Program (Tables)	9 Months Ended
	Sep. 30, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Summary of Stock Option Activity	'
	A summary of stock option activity for the nine months ended September 30, 2013 is presented below:
			Shares			Weighted
						Average
						Exercise
						Price
	Outstanding at beginning of period			712,350		$	8.87
	Granted during period			—			—
	Acquired in merger with Affinity			132,112			8.49
	Forfeited/cancelled during period			(2,609	)		9.67
	Expired			(30,666	)		6.52
	Outstanding at end of period (1)			811,187		$	8.89
	Exercisable at end of period (1)			608,687		$	9.86
	-1	Included in options outstanding and exercisable at September 30, 2013 are 100,000 organizer options, with an exercise price of $10.00 per share, exchanged as part of the 2008 acquisition of Prestige which were issued outside of the Program.
Summary of Weighted Average Assumptions	'
	These options were valued at the date of the merger at $44 thousand based on the following weighted average assumptions:
			September 30, 2013
	Dividend yield			0	%
	Expected life			2.6 years
	Expected volatility			33	%
	Risk-free interest rate			0.38	%
	Weighted average fair value		$	0.36
	FPFC stock price at date of issuance		$	5.22
Summary of Restricted Stock Award Activity	'
	A summary of restricted stock award activity is presented below for the nine months ended September 30, 2013:
			Shares
	Outstanding at beginning of period (1)			21,074
	Granted during year			3,625
	Forfeited/cancelled during year			(375	)
	Outstanding at end of period			24,324
	-1	Included in outstanding restricted stock are 19,299 grants issued as part of the 2009 Deferred Compensation Plan

Regulatory_Matters_Tables

Regulatory Matters (Tables)

9 Months Ended

Sep. 30, 2013

Banking And Thrift [Abstract]

'

Schedule of Bank's Capital Amounts and Ratios

'

The Bank’s capital amounts and ratios at September 30, 2013 and December 31, 2012 are presented below:

Actual

Minimum Capital

To be Well

Requirement

Capitalized under

Prompt Corrective

Action Provisions

Amount

Ratio

Amount

Ratio

Amount

Ratio

(Dollars in thousands)

September 30, 2013

Total capital (to risk-weighted assets)

$

41,488

12.96

%

$

³25,601

³8.0

%

$

³32,002

³10.0

%

Tier 1 capital (to risk-weighted assets)

39,217

12.25

³12,801

³4.0

³19,201

³6.0

Tier 1 capital (to total assets)

39,217

9.54

³16,445

³4.0

³20,556

³5.0

December 31, 2012

Total capital (to risk-weighted assets)

$

28,073

12.48

%

$

³18,054

³8.0

%

$

³22,568

³10.0

%

Tier 1 capital (to risk-weighted

25,703

11.39

³9,027

³4.0

³13,541

³6.0

assets) Tier 1 capital (to total assets)

25,703

9.4

³10,934

³4.0

³13,668

³5.0

Fair_Value_Measurements_and_Fa1

Fair Value Measurements and Fair Values of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]	'
Summary of Financial Assets Measured at Fair Value on Recurring Basis	'
	For financial assets measured at fair value on a recurring basis, the fair value measurements by level within the fair value hierarchy used at September 30, 2013 and December 31, 2012 are as follows:
	Description		Fair Value		(Level 1) Quoted			(Level 2)		(Level 3)
					Prices in Active			Significant		Significant
					Markets for			Other		Unobservable
					Identical Assets			Observable		Inputs
								Inputs
			(Dollars in thousands)
	As of September 30, 2013:
	Investment securities available for sale:
	Obligations of U.S. government agencies and corporations		$	24,216	$	—		$	24,216	$	—
	Obligations of states and political subdivisions			7,952		—			7,952		—
	Federal agency mortgage-backed securities			21,421		—			21,421		—
	Federal agency CMO’s			853		—			853		—
	Other debt securities			1,222		—			1,222		—
	Money market mutual fund			27		27			—		—
	Total assets measured at fair value on a recurring basis		$	55,691	$	27		$	55,664	$	—
	As of December 31, 2012:
	Investment securities available for sale:
	Obligations of U.S. government agencies and corporations		$	1,001	$	—		$	1,001	$	—
	Obligations of states and political subdivisions			11,857		—			11,857		—
	Agency mortgage-backed securities			3,681		—			3,681		—
	Money market mutual fund			140		140			—		—
	Total assets measured at fair value on a recurring basis		$	16,679	$	140		$	16,539	$	—
Summary of Financial Assets Measured at Fair Value on Nonrecurring Basis	'
	For financial assets measured at fair value on a nonrecurring basis, the fair value measurements by level within the fair value hierarchy used at September 30, 2013 and December 31, 2012 are as follows:
	Description		Fair Value		(Level 1)			(Level 2)		(Level 3)
					Quoted Prices			Significant		Significant
					in Active			Other		Unobservable
					Markets for			Observable		Inputs
					Identical			Inputs
					Assets
			(Dollars in thousands)
	As of September 30, 2013:
	Impaired loans, net		$	4,343	$	—		$	—	$	4,343
	Other real estate owned			907		—			—		907
	Repossessed assets			75		—			—		75
	Total assets measured at fair value on a nonrecurring basis		$	5,325	$	—		$	—	$	5,325
	As of December 31, 2012:
	Impaired loans		$	10,072	$	—		$	—	$	10,072
	Other real estate owned			184		—			—		184
	Total assets measured at fair value on a nonrecurring basis		$	10,256	$	—		$	—	$	10,256
Quantitative Information About Level 3 Fair Value Measurements	'
	Quantitative information about Level 3 fair value measurements at September 30, 2013 is included in the table below:
			Fair Value		Valuation Techniques		Unobservable	Estimated
							Inputs	Ratings
								(Weighted
								Average) (3)
			(Dollars in thousands)
	Impaired loans		$	4,343	Appraisal of real		Appraisal	0%-20%
					estate collateral (1)		adjustments(2)	-6.20%
					Valuation of business		Valuation	25%-30%
					assets used as		adjustments(2)
					collateral(1)
							Liquidation	5%-10%
							expenses	-6.91%
	Other real estate owned		$	907	Appraisal of		Appraisal	0%-90%
					collateral(1)		adjustments(2)	-20.32%
							Liquidation	0%-35%
							expenses	-10.09%
	Quantitative information about Level 3 fair value measurements at December 31, 2012 is included in the table below:
			Fair Value		Valuation Techniques		Unobservable	Estimated
							Inputs	Ratings
								(Weighted
								Average) (3)
			(Dollars in thousands)
	Impaired loans		$	10,072	Appraisal of real		Appraisal	0%-15%
					estate collateral (1)		adjustments(2)	-8.60%
					Valuation of business		Valuation	25%-30%
					assets used as		adjustments(2)
					collateral(1)
							Liquidation	5%-10%
							expenses	-9.90%
	Other real estate owned		$	184	Appraisal of		Appraisal	None
					collateral(1)		adjustments(2)
							Liquidation	5%-10%
							expenses	-8.00%
	-1	Fair Value is generally determined through independent appraisals of the underlying collateral, which include Level 3 inputs that are not identifiable.
	-2	Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses.
	-3	The range and weighted average of qualitative factors such as economic conditions and estimated liquidation expenses are presented as a percent of the appraised value.
Summary of Estimated Fair Values of Company's Financial Instruments	'
	At September 30, 2013 and December 31, 2012, the estimated fair values of the Company’s financial instruments were as follows:
			September 30, 2013
			Carrying		Fair Value			Level 1		Level 2		Level 3
			Amount
			(Dollars in thousands)
	Assets:
	Cash and cash equivalents		$	19,082	$	19,082		$	19,082	$	—	$	—
	Securities available for sale			55,691		55,691			27		55,664		—
	Securities held to maturity			11,005		10,428			—		10,428		—
	Loans receivable, net			329,961		336,641			—		—		336,641
	Restricted stock			2,461		2,461			—		2,461		—
	Accrued interest receivable			1,423		1,423			—		1,423		—
	Liabilities:
	Deposits			340,835		342,183			—		342,183		—
	Short-term borrowings			26,875		26,875			—		26,875		—
	Long-term debt			11,000		10,806			—		10,806		—
	Accrued interest payable			460		460			—		460		—
	Off-balance sheet credit related instruments:
	Commitments to extend credit			—		—			—		—		—
			December 31, 2012
			Carrying		Fair Value			Level 1		Level 2		Level 3
			Amount
			(Dollars in thousands)
	Assets:
	Cash and cash equivalents		$	11,016	$	11,016		$	11,016	$	—	$	—
	Securities available for sale			16,079		16,679			140		16,539		—
	Loans receivable, net			241,815		245,493			—		—		245,493
	Restricted stock			1,337		1,337			—		1,337		—
	Accrued interest receivable			1,040		1,040			—		1,040		—
	Liabilities:
	Deposits			233,043		235,563			—		235,563		—
	Long-term debt			13,000		12,902			—		12,902		—
	Accrued interest payable			378		378			—		378		—
	Off-balance sheet credit related instruments:
	Commitments to extend credit			—		—			—		—		—

Summary_of_Significant_Account2

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	1 Months Ended		3 Months Ended		9 Months Ended
	Feb. 28, 2013	Dec. 31, 2005	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2011	11-May-07
					Bank				Warrant
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'	'	'	'	'
Entity date of formation	'	'	'	'	13-Feb-07	'	'	'	'
Agreement of reorganization and merger date	'	'	'	'	11-May-07	'	'	'	'
Common stock exchange ratio after reorganization	'	'	'	'	'	'	'	'	1
Warrants acquire ratio after reorganization	'	'	'	'	'	'	'	'	1
Effective date of acquisition	28-Feb-13	'	'	'	'	'	'	'	'
Common stock exchange ratio	0.9813	'	'	'	'	'	'	'	'
Value of shares issued in private placement	'	$21,000,000	'	'	'	'	'	'	'
Total assets	'	'	427,367,000	'	427,367,000	'	275,146,000	'	'
Total Shareholders' Equity	'	'	42,228,000	28,005,000	42,228,000	28,005,000	27,710,000	27,444,000	'
Total loans	'	'	332,197,000	'	332,197,000	'	244,275,000	'	'
Total deposits	'	'	340,835,000	'	340,835,000	'	233,043,000	'	'
Number of banking offices	'	'	'	'	10	'	'	'	'
Percentage of loan to value ratio	'	'	'	'	'Commercial real estate loans typically require a loan to value ratio of not greater than 80% and vary in terms	'	'	'	'
Residential mortgages amortization period	'	'	'	'	'Residential mortgages have amortizations up to 30 years	'	'	'	'
Home equity loans maturity period	'	'	'	'	'Home equity loans have maturities up to 10 years	'	'	'	'
Provision for loan losses	'	'	-230,000	-80,000	-570,000	-410,000	'	'	'
Acquired Impaired Loans [Member]	'	'	'	'	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'	'	'	'	'
Provision for loan losses	'	'	89,000	'	89,000	'	'	'	'
Acquired Non-Impaired Loans [Member]	'	'	'	'	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'	'	'	'	'
Provision for loan losses	'	'	118,000	'	118,000	'	'	'	'
Affinity Bancorp, Inc. [Member]	'	'	'	'	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'	'	'	'	'
Total identifiable assets	175,900,000	'	'	'	'	'	'	'	'
Loans and leases	77,359,000	'	'	'	'	'	'	'	'
Liabilities, deposits	150,904,000	'	'	'	'	'	'	'	'
Number of operating branches	5	'	'	'	'	'	'	'	'
Common stock exchange ratio	0.9813	'	'	'	'	'	'	'	'
Number of shares issued as a result of merger	1,915,942	'	'	'	'	'	'	'	'
Number of banking offices	10	'	'	'	'	'	'	'	'
Prestige Community Bank [Member]	'	'	'	'	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'	'	'	'	'
Effective date of acquisition	'	'	'	'	29-Feb-08	'	'	'	'
Private Placement [Member]	'	'	'	'	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'	'	'	'	'
Number of shares issued in private placement	1,268,576	'	'	'	'	'	'	'	'
Value of shares issued in private placement	6,600,000	'	'	'	6,572,000	'	'	'	'
Private Placement [Member] | Affinity Bancorp, Inc. [Member]	'	'	'	'	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'	'	'	'	'
Number of shares issued in private placement	1,268,576	'	'	'	'	'	'	'	'
First Priority Bank [Member]	'	'	'	'	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'	'	'	'	'
Total assets	'	'	427,300,000	'	427,300,000	'	'	'	'
Total Shareholders' Equity	'	'	41,500,000	'	41,500,000	'	'	'	'
Entity date of incorporation	'	'	'	'	25-May-05	'	'	'	'
Total loans	'	'	332,200,000	'	332,200,000	'	'	'	'
Total deposits	'	'	$341,900,000	'	$341,900,000	'	'	'	'

Merger_with_Affinity_Bancorp_I2

Merger with Affinity Bancorp, Inc. - Additional Information (Detail) (USD $)	1 Months Ended	9 Months Ended		3 Months Ended	9 Months Ended	1 Months Ended
	Feb. 28, 2013	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Sep. 30, 2013	Feb. 28, 2013	Sep. 30, 2013
		Bank		Pro Forma with Affinity [Member]	Pro Forma with Affinity [Member]	Affinity Bancorp, Inc. [Member]	Affinity Bancorp, Inc. [Member]
						Bank
Business Acquisition [Line Items]	'	'	'	'	'	'	'
Date of merger agreement	23-May-12	'	'	'	'	'	'
Merger agreement completion date	28-Feb-13	'	'	'	'	'	'
Common stock exchange ratio	0.9813	'	'	'	'	0.9813	'
Number of shares issued as a result of merger	'	'	'	'	'	1,915,942	'
Number of banking offices	'	10	'	'	'	10	'
Total identifiable assets	'	'	'	'	'	$175,900,000	'
Loans and leases	'	'	'	'	'	77,359,000	'
Securities available for sale	'	'	'	'	'	33,253,000	'
Cash and due from banks	'	'	'	'	'	24,419,000	'
Other assets	'	'	'	'	'	38,738,000	'
Receivable from investment securities	'	'	'	'	'	33,600,000	'
Intangible assets	'	'	'	'	'	582,000	'
Net goodwill resulting from merger	'	2,725,000	1,194,000	'	'	1,531,000	'
Total liabilities	'	'	'	'	'	165,837,000	'
Deposits	'	'	'	'	'	150,904,000	'
Long-term borrowings	'	'	'	'	'	14,358,000	'
Shareholders' equity	'	'	'	'	'	10,000,000	'
Fair value estimates description	'	'The fair value estimates are subject to change for up to one year after the closing date of the transaction if additional information relative to the closing date fair values becomes available. As the Company continues to analyze the acquired assets and liabilities, there may be adjustments to the recorded carrying values.	'	'	'	'	'
Goodwill	'	'	'	'	'	1,000,000	'
Goodwill adjustment related to the fair value of acquired loans	'	'	'	'	'	'	525,000
Loan portfolio, at fair value	74,600,000	'	'	'	'	'	'
Loan at positive fair value adjustments	1,600,000	'	'	'	'	'	'
Loan reduction in fair value	1,600,000	'	'	'	'	'	'
Credit risk fair value adjustment calculation description	'	'The general credit risk fair value adjustment was calculated using a two part general credit fair value analysis (1) expected lifetime losses, using an average of historical losses of the Company, Affinity and peer banks; and (2) an estimated fair value adjustment for qualitative factors related to general economic conditions and the risk related to lack of familiarity with the originator's underwriting process.	'	'	'	'	'
Purchased credit impairment loans	2,800,000	'	'	'	'	'	'
Credit impairment loans nonaccretable discount difference	1,600,000	'	'	'	'	'	'
Accretable yield amount	'	292,000	'	'	'	'	'
Core deposit intangible assets amortized over estimated useful life	'	'10 years	'	'	'	'	'
Deferred tax asset valuation allowance	'	1,800,000	'	'	'	'	'
Federal net operating loss carrryforward	'	1,500,000	'	'	'	'	'
Deferred tax asset related to NOL	'	500,000	'	'	'	'	'
Statutory federal income tax rate	'	34.00%	'	'	'	'	'
Net operating loss carryforward expiry period	'	'Subject to certain limitations and expires in 2028 if not fully utilized	'	'	'	'	'
Proforma merger related costs	'	'	'	$324,000	$1,780,000	'	'

Merger_with_Affinity_Bancorp_I3

Merger with Affinity Bancorp, Inc. - Schedule of Acquired Assets and Liabilities (Detail) (USD $)	1 Months Ended
In Thousands, except Share data, unless otherwise specified	Feb. 28, 2013	Sep. 30, 2013	Dec. 31, 2012
Purchase Price Consideration in Common Stock	'	'	'
Common stock exchange ratio	0.9813	'	'
Liabilities:	'	'	'
Net goodwill resulting from merger	'	$2,725	$1,194
Affinity Bancorp, Inc. [Member]	'	'	'
Purchase Price Consideration in Common Stock	'	'	'
Affinity common shares settled for stock	1,952,644	'	'
Common stock exchange ratio	0.9813	'	'
Number of shares issued as a result of merger	1,915,942	'	'
Fair value assigned to First Priority's common shares	5.22	'	'
Acquisition cost of Affinity common shares exchanged for First Priority Stock-Total Acquisition cost	10,001	'	'
Acquisition cost of Consideration-Affinity Options Rolled over to First Priority Options	44	'	'
Total Acquisition cost	10,045	'	'
Identifiable assets:	'	'	'
Cash and due from banks	24,419	'	'
Securities available for sale	33,253	'	'
Loans and leases	77,359	'	'
Intangible assets	582	'	'
Other assets	38,738	'	'
Total identifiable assets	174,351	'	'
Liabilities:	'	'	'
Deposits	150,904	'	'
Long-term borrowings	14,358	'	'
Other liabilities	575	'	'
Total liabilities	165,837	'	'
Net goodwill resulting from merger	1,531	'	'

Merger_with_Affinity_Bancorp_I4

Merger with Affinity Bancorp, Inc. - Summary of Acquired Impaired Loans (Detail) (Acquired Impaired Loans [Member], USD $)	Sep. 30, 2013
In Thousands, unless otherwise specified
Acquired Impaired Loans [Member]	'
Financing Receivable, Impaired [Line Items]	'
Contractually required principal and interest at acquisition	$5,577
Contractual cash flows not expected to be collected	2,441
Expected cash flows at acquisition	3,136
Interest component of expected cash flows	359
Basis in acquired loans at acquisition - estimated fair value	$2,777

Merger_with_Affinity_Bancorp_I5

Merger with Affinity Bancorp, Inc. - Schedule of Amortization Expense for Core Deposit Intangible (Detail) (Core Deposit [Member], USD $)	Sep. 30, 2013	Sep. 30, 2012
In Thousands, unless otherwise specified
Core Deposit [Member]	'	'
Finite Lived Intangible Assets, Future Amortization Expense [Line Items]	'	'
Amortization expense	$62	'
Amortization expense, Remainder of 2013	26	'
Amortization expense, 2014	97	'
Amortization expense, 2015	86	'
Amortization expense, 2016	76	'
Amortization expense, 2017	65	'
Amortization expense, 2018	$55	'

Merger_with_Affinity_Bancorp_I6

Merger with Affinity Bancorp, Inc. - Summary of Merger Related Costs (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Merger related costs	$324	$185	$1,534	$328
Accounting [Member]	'	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Merger related costs	'	62	26	67
Branch Consolidation [Member]	'	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Merger related costs	'	'	103	'
Investment Banking [Member]	'	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Merger related costs	'	'	350	'
Investor & Customer Document Printing and Filing [Member]	'	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Merger related costs	35	14	153	14
Legal [Member]	'	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Merger related costs	'	109	5	247
Purchase Accounting Consulting [Member]	'	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Merger related costs	'	'	50	'
Salaries and Employee Benefits [Member]	'	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Merger related costs	83	'	83	'
System Contract Termination [Member]	'	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Merger related costs	'	'	314	'
System Conversion/Deconversion Costs [Member]	'	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Merger related costs	$206	'	$450	'

Merger_with_Affinity_Bancorp_I7

Merger with Affinity Bancorp, Inc. - Summary of Unaudited Pro Forma Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Business Combination [Abstract]	'	'	'	'
Total revenue, consisting of net interest income plus non-interest income	$4,220	$3,992	$13,054	$12,302
Net income (loss)	$527	$418	$1,870	($619)

Earnings_Loss_Per_Common_Share2

Earnings (Loss) Per Common Share - Schedule of Calculations of Basic and Diluted Earnings (Loss) Per Common Share (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]	'	'	'	'
Net income (loss)	$87	$218	($506)	$551
Less: preferred stock dividends	-119	-119	-359	-359
Income (loss) to common shareholders	-46	86	-905	152
Average basic common shares outstanding	6,332	3,144	5,641	3,144
Effect of dilutive stock options	'	8	'	13
Average number of common shares used to calculate diluted earnings per common share	6,332	3,152	5,641	3,157
Basic earnings (loss) per common share	($0.01)	$0.03	($0.16)	$0.05
Diluted earnings (loss) per common share	($0.01)	$0.03	($0.16)	$0.05
Preferred Stock [Member]	'	'	'	'
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]	'	'	'	'
Less: net discount accretion on preferred stock	($14)	($13)	($40)	($40)

Earnings_Loss_Per_Common_Share3

Earnings (Loss) Per Common Share - Schedule of Amount of Preferred Stock Dividends and Net Accretion or Amortization Related to Each Series of Preferred Stock (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Class of Stock [Line Items]	'	'	'	'
Preferred dividends	$119	$119	$359	$359
Series A Preferred Stock [Member]	'	'	'	'
Class of Stock [Line Items]	'	'	'	'
Preferred dividends	57	57	172	172
Net accretion (amortization) on preferred stock	-14	-14	-43	-43
Series B Preferred Stock [Member]	'	'	'	'
Class of Stock [Line Items]	'	'	'	'
Preferred dividends	5	5	15	15
Net accretion (amortization) on preferred stock	2	2	5	5
Series C Preferred Stock [Member]	'	'	'	'
Class of Stock [Line Items]	'	'	'	'
Preferred dividends	57	57	172	172
Net accretion (amortization) on preferred stock	-2	-1	-2	-2
Preferred Stock [Member]	'	'	'	'
Class of Stock [Line Items]	'	'	'	'
Net accretion (amortization) on preferred stock	($14)	($13)	($40)	($40)

Securities_Additional_Informat

Securities - Additional Information (Detail) (USD $)	1 Months Ended		3 Months Ended	9 Months Ended
	Sep. 30, 2013	31-May-13	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
	Securities			Securities
Schedule Of Held To Maturity And Available For Sale Securities [Line Items]	'	'	'	'	'	'
Fair value of transferred amount of available for sale securities to held to maturity	'	$11,200,000	'	'	'	'
Accumulated other comprehensive income	267,000	293,000	'	293,000	'	'
Available for sale securities, fair value	55,691,000	'	'	55,691,000	'	16,679,000
Held to maturity securities, fair value	10,428,000	'	'	10,428,000	'	0
Impairment on available for sale investment portfolio	'	'	'	1,100,000	'	'
Impairment on held to maturity portfolio	'	'	'	578,000	'	'
Number of securities in continuous unrealized loss position	1	'	'	1	'	'
Amortized Cost	11,005,000	'	'	11,005,000	'	'
Net gains on sale of available for sale securities	'	'	57,000	'	422,000	'
Securities estimated fair value	42,100,000	'	'	42,100,000	'	'
Securities fair value	117,000	'	'	117,000	'	4,700,000
Obligations of U.S. Government Agencies and Corporations [Member]	'	'	'	'	'	'
Schedule Of Held To Maturity And Available For Sale Securities [Line Items]	'	'	'	'	'	'
Available for sale securities, fair value	24,216,000	'	'	24,216,000	'	1,001,000
Number of securities in unrealized loss position	19	'	'	19	'	'
Obligations of States and Political Subdivisions [Member]	'	'	'	'	'	'
Schedule Of Held To Maturity And Available For Sale Securities [Line Items]	'	'	'	'	'	'
Available for sale securities, fair value	7,951,000	'	'	7,951,000	'	11,857,000
Held to maturity securities, fair value	10,428,000	'	'	10,428,000	'	'
Number of securities in unrealized loss position	41	'	'	41	'	'
Amortized Cost	11,005,000	'	'	11,005,000	'	'
Obligations of States and Political Subdivisions [Member] | State unrealized loss position greater than 1 year [Member]	'	'	'	'	'	'
Schedule Of Held To Maturity And Available For Sale Securities [Line Items]	'	'	'	'	'	'
Held to maturity securities, fair value	491,000	'	'	491,000	'	'
Amortized Cost	520,000	'	'	520,000	'	'
Unrealized loss	29,000	'	'	29,000	'	'
Federal Agency Mortgage-Backed Securities [Member]	'	'	'	'	'	'
Schedule Of Held To Maturity And Available For Sale Securities [Line Items]	'	'	'	'	'	'
Available for sale securities, fair value	21,421,000	'	'	21,421,000	'	3,681,000
Number of securities in unrealized loss position	8	'	'	8	'	'
Federal Agency Collateralized Mortgage Obligations [Member]	'	'	'	'	'	'
Schedule Of Held To Maturity And Available For Sale Securities [Line Items]	'	'	'	'	'	'
Available for sale securities, fair value	854,000	'	'	854,000	'	'
Number of securities in unrealized loss position	1	'	'	1	'	'
Other Debt Securities [Member]	'	'	'	'	'	'
Schedule Of Held To Maturity And Available For Sale Securities [Line Items]	'	'	'	'	'	'
Available for sale securities, fair value	$1,222,000	'	'	$1,222,000	'	'
Number of securities in unrealized loss position	1	'	'	1	'	'

Securities_Summary_of_Amortize

Securities - Summary of Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Company's Investment Securities Available for Sale (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	$56,607	$15,996
Gross Unrealized Gains	183	715
Gross Unrealized Losses	-1,099	-32
Estimated Fair Value	55,691	16,679
Obligations of U.S. Government Agencies and Corporations [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	24,612	1,000
Gross Unrealized Gains	12	1
Gross Unrealized Losses	-408	'
Estimated Fair Value	24,216	1,001
Obligations of States and Political Subdivisions [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	8,347	11,304
Gross Unrealized Gains	'	585
Gross Unrealized Losses	-396	-32
Estimated Fair Value	7,951	11,857
Federal Agency Mortgage-Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	21,513	3,552
Gross Unrealized Gains	164	129
Gross Unrealized Losses	-256	'
Estimated Fair Value	21,421	3,681
Federal Agency Collateralized Mortgage Obligations [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	855	'
Gross Unrealized Gains	6	'
Gross Unrealized Losses	-7	'
Estimated Fair Value	854	'
Other Debt Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	1,253	'
Gross Unrealized Gains	1	'
Gross Unrealized Losses	-32	'
Estimated Fair Value	1,222	'
Money Market Mutual Fund [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	27	140
Gross Unrealized Gains	'	'
Gross Unrealized Losses	'	'
Estimated Fair Value	$27	$140

Securities_Summary_of_Amortize1

Securities - Summary of Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Company's Investment Securities Held to Maturity (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized Cost	$11,005	'
Gross Unrealized Gains	1	'
Gross Unrealized Losses	-578	'
Estimated Fair Value	10,428	0
Obligations of States and Political Subdivisions [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized Cost	11,005	'
Gross Unrealized Gains	1	'
Gross Unrealized Losses	-578	'
Estimated Fair Value	$10,428	'

Securities_Summary_of_Amortize2

Securities - Summary of Amortized Cost and Fair Value of Securities by Contractual Maturity (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Investments Debt And Equity Securities [Abstract]	'	'
Amortized Cost, Due within one year, Available for Sale Securities	$251	'
Amortized Cost, Due after one year through five years, Available for Sale Securities	13,505	'
Amortized Cost, Due after five years through ten years, Available for Sale Securities	19,188	'
Amortized Cost, Due after ten years, Available for Sale Securities	23,636	'
Total Amortized Cost, Available for Sale Securities	56,580	'
Amortized Cost, Money market mutual fund, Available for Sale Securities	27	'
Total Amortized Cost, Available for Sale Securities	56,607	15,996
Fair Value, Due within one year, Available for Sale Securities	251	'
Fair Value, Due after one year through five years, Available for Sale Securities	13,358	'
Fair Value, Due after five years through ten years, Available for Sale Securities	18,795	'
Fair Value, Due after ten years, Available for Sale Securities	23,260	'
Total Fair Value, Available for Sale Securities	55,664	'
Fair Value, Money market mutual fund, Available for Sale Securities	27	'
Estimated Fair Value	55,691	16,679
Amortized Cost, Due within one year, Held to Maturity	'	'
Amortized Cost, Due after one year through five years, Held to Maturity	'	'
Amortized Cost, Due after five years through ten years, Held to Maturity	1,594	'
Amortized Cost, Due after ten years, Held to Maturity	9,411	'
Total Amortized Cost	11,005	'
Fair Value, Due within one year, Held to Maturity	'	'
Fair Value, Due after one year through five years, Held to Maturity	'	'
Fair Value, Due after five years through ten years, Held to Maturity	1,537	'
Fair Value, Due after ten years, Held to Maturity	8,891	'
Estimated Fair Value	$10,428	$0

Loans_Receivable_and_Related_A2

Loans Receivable and Related Allowance for Loan Losses - Summary of Loans Receivable (Detail) (USD $)	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Commercial:	'	'	'	'	'	'
Commercial and industrial	$79,038	'	$62,366	'	'	'
Commercial mortgage	139,287	'	93,775	'	'	'
Commercial construction	3,671	'	4,112	'	'	'
Total commercial	221,996	'	160,253	'	'	'
Residential mortgage loans	56,780	'	49,354	'	'	'
Consumer:	'	'	'	'	'	'
Home equity lines of credit	31,286	'	20,654	'	'	'
Other consumer loans	22,464	'	14,298	'	'	'
Total consumer	53,750	'	34,952	'	'	'
Total loans	332,526	'	244,559	'	'	'
Allowance for loan losses	-2,236	-2,229	-2,460	-2,502	-2,427	-2,470
Net deferred loan fees	-329	'	-284	'	'	'
Net loans	329,961	'	241,815	'	'	'
Total loans	332,526	'	244,559	'	'	'
Originated Loans [Member]	'	'	'	'	'	'
Commercial:	'	'	'	'	'	'
Commercial and industrial	69,464	'	'	'	'	'
Commercial mortgage	121,190	'	'	'	'	'
Commercial construction	2,839	'	'	'	'	'
Residential mortgage loans	48,987	'	'	'	'	'
Consumer:	'	'	'	'	'	'
Home equity lines of credit	21,531	'	'	'	'	'
Other consumer loans	14,832	'	'	'	'	'
Total loans	278,843	'	244,559	'	'	'
Allowance for loan losses	-2,236	-2,229	-2,460	'	'	'
Total loans	278,843	'	244,559	'	'	'
Acquired Loans [Member]	'	'	'	'	'	'
Commercial:	'	'	'	'	'	'
Commercial and industrial	9,574	'	'	'	'	'
Commercial mortgage	18,097	'	'	'	'	'
Commercial construction	832	'	'	'	'	'
Residential mortgage loans	7,793	'	'	'	'	'
Consumer:	'	'	'	'	'	'
Home equity lines of credit	9,755	'	'	'	'	'
Other consumer loans	7,632	'	'	'	'	'
Total loans	53,683	'	'	'	'	'
Allowance for loan losses	'	'	'	'	'	'
Total loans	$53,683	'	'	'	'	'

Loans_Receivable_and_Related_A3

Loans Receivable and Related Allowance for Loan Losses - Additional Information (Detail) (USD $)

3 Months Ended

9 Months Ended

9 Months Ended

3 Months Ended

6 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

In Thousands, unless otherwise specified

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2012

Jun. 30, 2013

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Contract

Contract

Contract

Contract

Affinity Bancorp, Inc. [Member]

Lessors Of Nonresidential Buildings [Member]

Lessors Of Nonresidential Buildings [Member]

Lessors Of Residential Buildings And Dwellings [Member]

Lessors Of Residential Buildings And Dwellings [Member]

Home Equity Lines of Credit [Member]

Home Equity Lines of Credit [Member]

Home Equity Lines of Credit [Member]

Home Equity Lines of Credit [Member]

Home Equity Lines of Credit [Member]

Home Equity Lines of Credit [Member]

Commercial Loans [Member]

Commercial Construction [Member]

Commercial Construction [Member]

Commercial Construction [Member]

Commercial Construction [Member]

Commercial Construction [Member]

Residential Mortgage Loans [Member]

Residential Mortgage Loans [Member]

Residential Mortgage Loans [Member]

Residential Mortgage Loans [Member]

Residential Mortgage Loans [Member]

Contract

Contract

Contract

Contract

Contract

Contract

Affinity Bancorp, Inc. [Member]

Contract

Contract

Contract

Contract

Contract

Affinity Bancorp, Inc. [Member]

Contract

Contract

Contract

Contract

Affinity Bancorp, Inc. [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loans

$329,961

'

$329,961

'

$241,815

'

$62,600

$48,100

$42,300

$27,600

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding loans receivable, Percentage

'

'

'

'

'

'

18.80%

19.70%

12.70%

11.30%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Concentration of loans

'The Bank has no other concentration of loans which exceeds 10% of total loans.

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Non-accruing loans interest income not yet recognized

91

32

216

145

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Troubled debt restructurings outstanding in default

'

'

78

'

'

'

'

'

'

'

'

'

'

'

'

695

'

'

'

'

'

'

'

'

'

'

'

Allowance for Loan Losses, Charge-offs

'

'

'

'

'

'

'

'

'

'

'

'

246

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of troubled debt Restructuring

1

'

1

4

'

2

'

'

'

'

'

'

1

'

1

'

2

'

'

'

'

'

1

'

1

1

'

Nonaccrual loans

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$301

'

'

'

'

$77

Loans_Receivable_and_Related_A4

Loans Receivable and Related Allowance for Loan Losses - Activity in Allowance for Loan Losses by Loan Class (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	$2,229	$2,427	$2,460	$2,470
Allowance for Loan Losses, Charge-offs	-238	-7	-831	-397
Allowance for Loan Losses, Recoveries	15	2	37	19
Allowance for Loan Losses, Provision for loan losses	230	80	570	410
Allowance for Loan Losses, Ending Balance	2,236	2,502	2,236	2,502
Originated Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	2,229	'	2,460	'
Allowance for Loan Losses, Charge-offs	-9	'	-599	'
Allowance for Loan Losses, Recoveries	5	'	12	'
Allowance for Loan Losses, Provision for loan losses	11	'	363	'
Allowance for Loan Losses, Ending Balance	2,236	'	2,236	'
Acquired Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	'	'	'	'
Allowance for Loan Losses, Charge-offs	-229	'	-232	'
Allowance for Loan Losses, Recoveries	10	'	25	'
Allowance for Loan Losses, Provision for loan losses	219	'	207	'
Allowance for Loan Losses, Ending Balance	'	'	'	'
Commercial and Industrial [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	431	1,090	566	1,404
Allowance for Loan Losses, Charge-offs	'	-7	-339	-207
Allowance for Loan Losses, Recoveries	11	1	19	2
Allowance for Loan Losses, Provision for loan losses	-49	-279	147	-394
Allowance for Loan Losses, Ending Balance	393	805	393	805
Commercial and Industrial [Member] | Originated Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	431	'	566	'
Allowance for Loan Losses, Charge-offs	'	'	-339	'
Allowance for Loan Losses, Recoveries	3	'	1	'
Allowance for Loan Losses, Provision for loan losses	-41	'	165	'
Allowance for Loan Losses, Ending Balance	393	'	393	'
Commercial and Industrial [Member] | Acquired Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	'	'	'	'
Allowance for Loan Losses, Charge-offs	'	'	'	'
Allowance for Loan Losses, Recoveries	8	'	18	'
Allowance for Loan Losses, Provision for loan losses	-8	'	-18	'
Allowance for Loan Losses, Ending Balance	'	'	'	'
Commercial Mortgage [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	389	209	559	198
Allowance for Loan Losses, Charge-offs	-137	'	-137	'
Allowance for Loan Losses, Recoveries	'	'	'	'
Allowance for Loan Losses, Provision for loan losses	202	274	32	285
Allowance for Loan Losses, Ending Balance	454	483	454	483
Commercial Mortgage [Member] | Originated Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	389	'	559	'
Allowance for Loan Losses, Charge-offs	'	'	'	'
Allowance for Loan Losses, Recoveries	'	'	'	'
Allowance for Loan Losses, Provision for loan losses	65	'	-105	'
Allowance for Loan Losses, Ending Balance	454	'	454	'
Commercial Mortgage [Member] | Acquired Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	'	'	'	'
Allowance for Loan Losses, Charge-offs	-137	'	-137	'
Allowance for Loan Losses, Recoveries	'	'	'	'
Allowance for Loan Losses, Provision for loan losses	137	'	137	'
Allowance for Loan Losses, Ending Balance	'	'	'	'
Commercial Construction [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	30	10	31	10
Allowance for Loan Losses, Charge-offs	'	'	'	'
Allowance for Loan Losses, Recoveries	'	'	'	'
Allowance for Loan Losses, Provision for loan losses	-22	1	-23	1
Allowance for Loan Losses, Ending Balance	8	11	8	11
Commercial Construction [Member] | Originated Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	30	'	31	'
Allowance for Loan Losses, Charge-offs	'	'	'	'
Allowance for Loan Losses, Recoveries	'	'	'	'
Allowance for Loan Losses, Provision for loan losses	-22	'	-23	'
Allowance for Loan Losses, Ending Balance	8	'	8	'
Commercial Construction [Member] | Acquired Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	'	'	'	'
Allowance for Loan Losses, Charge-offs	'	'	'	'
Allowance for Loan Losses, Recoveries	'	'	'	'
Allowance for Loan Losses, Provision for loan losses	'	'	'	'
Allowance for Loan Losses, Ending Balance	'	'	'	'
Residential Mortgage Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	145	161	176	190
Allowance for Loan Losses, Charge-offs	-6	'	-14	'
Allowance for Loan Losses, Recoveries	'	'	7	'
Allowance for Loan Losses, Provision for loan losses	9	5	-21	-24
Allowance for Loan Losses, Ending Balance	148	166	148	166
Residential Mortgage Loans [Member] | Originated Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	145	'	176	'
Allowance for Loan Losses, Charge-offs	'	'	-5	'
Allowance for Loan Losses, Recoveries	'	'	7	'
Allowance for Loan Losses, Provision for loan losses	3	'	-30	'
Allowance for Loan Losses, Ending Balance	148	'	148	'
Residential Mortgage Loans [Member] | Acquired Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	'	'	'	'
Allowance for Loan Losses, Charge-offs	-6	'	-9	'
Allowance for Loan Losses, Recoveries	'	'	'	'
Allowance for Loan Losses, Provision for loan losses	6	'	9	'
Allowance for Loan Losses, Ending Balance	'	'	'	'
Home Equity Lines of Credit [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	180	51	89	94
Allowance for Loan Losses, Charge-offs	-86	'	-332	-190
Allowance for Loan Losses, Recoveries	'	'	'	'
Allowance for Loan Losses, Provision for loan losses	82	-1	419	146
Allowance for Loan Losses, Ending Balance	176	50	176	50
Home Equity Lines of Credit [Member] | Originated Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	180	'	89	'
Allowance for Loan Losses, Charge-offs	'	'	-246	'
Allowance for Loan Losses, Recoveries	'	'	'	'
Allowance for Loan Losses, Provision for loan losses	-4	'	333	'
Allowance for Loan Losses, Ending Balance	176	'	176	'
Home Equity Lines of Credit [Member] | Acquired Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	'	'	'	'
Allowance for Loan Losses, Charge-offs	-86	'	-86	'
Allowance for Loan Losses, Recoveries	'	'	'	'
Allowance for Loan Losses, Provision for loan losses	86	'	86	'
Allowance for Loan Losses, Ending Balance	'	'	'	'
Other Consumer Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	61	28	41	34
Allowance for Loan Losses, Charge-offs	-9	'	-9	'
Allowance for Loan Losses, Recoveries	4	1	11	17
Allowance for Loan Losses, Provision for loan losses	20	2	33	-20
Allowance for Loan Losses, Ending Balance	76	31	76	31
Other Consumer Loans [Member] | Originated Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	61	'	41	'
Allowance for Loan Losses, Charge-offs	-9	'	-9	'
Allowance for Loan Losses, Recoveries	2	'	4	'
Allowance for Loan Losses, Provision for loan losses	22	'	40	'
Allowance for Loan Losses, Ending Balance	76	'	76	'
Other Consumer Loans [Member] | Acquired Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	'	'	'	'
Allowance for Loan Losses, Charge-offs	'	'	'	'
Allowance for Loan Losses, Recoveries	2	'	7	'
Allowance for Loan Losses, Provision for loan losses	-2	'	-7	'
Allowance for Loan Losses, Ending Balance	'	'	'	'
Unallocated [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	993	878	998	540
Allowance for Loan Losses, Charge-offs	'	'	'	'
Allowance for Loan Losses, Recoveries	'	'	'	'
Allowance for Loan Losses, Provision for loan losses	-12	78	-17	416
Allowance for Loan Losses, Ending Balance	981	956	981	956
Unallocated [Member] | Originated Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	993	'	998	'
Allowance for Loan Losses, Charge-offs	'	'	'	'
Allowance for Loan Losses, Recoveries	'	'	'	'
Allowance for Loan Losses, Provision for loan losses	-12	'	-17	'
Allowance for Loan Losses, Ending Balance	981	'	981	'
Unallocated [Member] | Acquired Loans [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance for Loan Losses, Beginning Balance	'	'	'	'
Allowance for Loan Losses, Charge-offs	'	'	'	'
Allowance for Loan Losses, Recoveries	'	'	'	'
Allowance for Loan Losses, Provision for loan losses	'	'	'	'
Allowance for Loan Losses, Ending Balance	'	'	'	'

Loans_Receivable_and_Related_A5

Loans Receivable and Related Allowance for Loan Losses - Balance in Allowance for Loan Losses Disaggregated on Basis of Company's Impairment Method (Detail) (USD $)	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	$2,236	$2,229	$2,460	$2,502	$2,427	$2,470
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	89	'	616	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	2,147	'	1,844	'	'	'
Loans Receivables, Ending Balance	332,526	'	244,559	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	4,432	'	10,688	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	328,094	'	233,871	'	'	'
Commercial and Industrial [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	393	431	566	805	1,090	1,404
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	37	'	315	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	356	'	251	'	'	'
Loans Receivables, Ending Balance	79,038	'	62,366	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	1,846	'	6,372	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	77,192	'	55,994	'	'	'
Commercial Mortgage [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	454	389	559	483	209	198
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	52	'	244	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	402	'	315	'	'	'
Loans Receivables, Ending Balance	139,287	'	93,775	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	1,627	'	2,293	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	137,660	'	91,482	'	'	'
Commercial Construction [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	8	30	31	11	10	10
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	'	'	20	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	8	'	11	'	'	'
Loans Receivables, Ending Balance	3,671	'	4,112	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	443	'	577	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	3,228	'	3,535	'	'	'
Residential Mortgage Loans [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	148	145	176	166	161	190
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	'	'	37	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	148	'	139	'	'	'
Loans Receivables, Ending Balance	56,780	'	49,354	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	248	'	1,040	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	56,532	'	48,314	'	'	'
Home Equity Lines of Credit [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	176	180	89	50	51	94
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	176	'	89	'	'	'
Loans Receivables, Ending Balance	31,286	'	20,654	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	'	'	406	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	31,286	'	20,248	'	'	'
Other Consumer Loans [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	76	61	41	31	28	34
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	76	'	41	'	'	'
Loans Receivables, Ending Balance	22,464	'	14,298	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	268	'	'	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	22,196	'	14,298	'	'	'
Unallocated [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	981	993	998	956	878	540
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	981	'	998	'	'	'
Loans Receivables, Ending Balance	'	'	'	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	'	'	'	'	'	'
Originated Loans [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	2,236	2,229	2,460	'	'	'
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	89	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	2,147	'	'	'	'	'
Loans Receivables, Ending Balance	278,843	'	244,559	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	1,409	'	'	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	277,434	'	'	'	'	'
Originated Loans [Member] | Commercial and Industrial [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	393	431	566	'	'	'
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	37	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	356	'	'	'	'	'
Loans Receivables, Ending Balance	69,464	'	'	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	841	'	'	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	68,623	'	'	'	'	'
Originated Loans [Member] | Commercial Mortgage [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	454	389	559	'	'	'
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	52	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	402	'	'	'	'	'
Loans Receivables, Ending Balance	121,190	'	'	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	519	'	'	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	120,671	'	'	'	'	'
Originated Loans [Member] | Commercial Construction [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	8	30	31	'	'	'
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	8	'	'	'	'	'
Loans Receivables, Ending Balance	2,839	'	'	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	2,839	'	'	'	'	'
Originated Loans [Member] | Residential Mortgage Loans [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	148	145	176	'	'	'
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	148	'	'	'	'	'
Loans Receivables, Ending Balance	48,987	'	'	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	48,987	'	'	'	'	'
Originated Loans [Member] | Home Equity Lines of Credit [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	176	180	89	'	'	'
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	176	'	'	'	'	'
Loans Receivables, Ending Balance	21,531	'	'	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	21,531	'	'	'	'	'
Originated Loans [Member] | Other Consumer Loans [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	76	61	41	'	'	'
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	76	'	'	'	'	'
Loans Receivables, Ending Balance	14,832	'	'	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	49	'	'	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	14,783	'	'	'	'	'
Originated Loans [Member] | Unallocated [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	981	993	998	'	'	'
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	981	'	'	'	'	'
Loans Receivables, Ending Balance	'	'	'	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	'	'	'	'	'	'
Acquired Loans [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	'	'	'	'	'	'
Loans Receivables, Ending Balance	53,683	'	'	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	3,023	'	'	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	50,660	'	'	'	'	'
Acquired Loans [Member] | Commercial and Industrial [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	'	'	'	'	'	'
Loans Receivables, Ending Balance	9,574	'	'	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	1,005	'	'	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	8,569	'	'	'	'	'
Acquired Loans [Member] | Commercial Mortgage [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	'	'	'	'	'	'
Loans Receivables, Ending Balance	18,097	'	'	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	1,108	'	'	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	16,989	'	'	'	'	'
Acquired Loans [Member] | Commercial Construction [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	'	'	'	'	'	'
Loans Receivables, Ending Balance	832	'	'	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	443	'	'	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	389	'	'	'	'	'
Acquired Loans [Member] | Residential Mortgage Loans [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	'	'	'	'	'	'
Loans Receivables, Ending Balance	7,793	'	'	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	248	'	'	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	7,545	'	'	'	'	'
Acquired Loans [Member] | Home Equity Lines of Credit [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	'	'	'	'	'	'
Loans Receivables, Ending Balance	9,755	'	'	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	9,755	'	'	'	'	'
Acquired Loans [Member] | Other Consumer Loans [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Individually Evaluated for Impairment	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance: Collectively Evaluated for Impairment	'	'	'	'	'	'
Loans Receivables, Ending Balance	7,632	'	'	'	'	'
Loans Receivables, Ending Balance: Individually Evaluated for Impairment	219	'	'	'	'	'
Loans Receivables, Ending Balance: Collectively Evaluated for Impairment	7,413	'	'	'	'	'
Acquired Loans [Member] | Unallocated [Member]	'	'	'	'	'	'
Loan Lease Allowance For Credit Losses Loan Activity And Report By Impairment Methodology [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Ending Balance	'	'	'	'	'	'

Loans_Receivable_and_Related_A6

Loans Receivable and Related Allowance for Loan Losses - Summary of Impaired Loans by Loan Portfolio Class (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
With no related allowance recorded, Recorded Investment	$3,663	'	$3,663	'	$5,949
Total, Recorded Investment	4,432	'	4,432	'	10,688
With no related allowance recorded, Unpaid Principle Balance	6,009	'	6,009	'	6,475
Total, Unpaid Principle Balance	6,780	'	6,780	'	11,671
With no related allowance recorded, Related Allowance	'	'	'	'	'
With an allowance recorded, Recorded Investment	769	'	769	'	4,739
With an allowance recorded, Unpaid Principle Balance	771	'	771	'	5,196
Total, Related Allowance	89	'	89	'	616
Total, Average Recorded Investment	5,408	6,699	8,056	7,137	'
Total, Interest Income Recognized	2	39	68	134	'
Commercial and Industrial [Member]	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
With no related allowance recorded, Recorded Investment	1,596	'	1,596	'	4,635
Total, Recorded Investment	1,846	'	1,846	'	6,372
With no related allowance recorded, Unpaid Principle Balance	3,081	'	3,081	'	4,707
Total, Unpaid Principle Balance	3,331	'	3,331	'	6,827
With no related allowance recorded, Related Allowance	'	'	'	'	'
With an allowance recorded, Recorded Investment	250	'	250	'	1,737
With an allowance recorded, Unpaid Principle Balance	250	'	250	'	2,120
Total, Related Allowance	37	'	37	'	315
With no related allowance recorded, Average Recorded Investment	1,754	'	2,988	608	'
With no related allowance recorded, Interest Income Recognized	'	'	8	17	'
With an allowance recorded, Average Recorded Investment	515	5,243	744	5,350	'
With an allowance recorded, Interest Income Recognized	'	12	23	36	'
Total, Average Recorded Investment	2,269	5,243	3,732	5,958	'
Total, Interest Income Recognized	'	12	31	53	'
Commercial Mortgage [Member]	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
With no related allowance recorded, Recorded Investment	1,108	'	1,108	'	'
Total, Recorded Investment	1,627	'	1,627	'	2,293
With no related allowance recorded, Unpaid Principle Balance	1,378	'	1,378	'	'
Total, Unpaid Principle Balance	1,899	'	1,899	'	2,329
With no related allowance recorded, Related Allowance	'	'	'	'	'
With an allowance recorded, Recorded Investment	519	'	519	'	2,293
With an allowance recorded, Unpaid Principle Balance	521	'	521	'	2,329
Total, Related Allowance	52	'	52	'	244
With no related allowance recorded, Average Recorded Investment	982	'	766	'	'
With no related allowance recorded, Interest Income Recognized	'	'	'	'	'
With an allowance recorded, Average Recorded Investment	464	650	1,281	531	'
With an allowance recorded, Interest Income Recognized	'	18	'	56	'
Total, Average Recorded Investment	1,446	650	2,047	531	'
Total, Interest Income Recognized	'	18	'	56	'
Commercial Construction [Member]	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
With no related allowance recorded, Recorded Investment	443	'	443	'	'
Total, Recorded Investment	443	'	443	'	577
With no related allowance recorded, Unpaid Principle Balance	885	'	885	'	'
Total, Unpaid Principle Balance	885	'	885	'	604
With no related allowance recorded, Related Allowance	'	'	'	'	'
With an allowance recorded, Recorded Investment	'	'	'	'	577
With an allowance recorded, Unpaid Principle Balance	'	'	'	'	604
Total, Related Allowance	'	'	'	'	20
With no related allowance recorded, Average Recorded Investment	468	'	375	'	'
With no related allowance recorded, Interest Income Recognized	2	'	18	'	'
With an allowance recorded, Average Recorded Investment	243	'	410	'	'
With an allowance recorded, Interest Income Recognized	'	'	12	'	'
Total, Average Recorded Investment	711	'	785	'	'
Total, Interest Income Recognized	2	'	30	'	'
Residential Mortgage Loans [Member]	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
With no related allowance recorded, Recorded Investment	248	'	248	'	908
Total, Recorded Investment	248	'	248	'	1,040
With no related allowance recorded, Unpaid Principle Balance	318	'	318	'	908
Total, Unpaid Principle Balance	318	'	318	'	1,051
With no related allowance recorded, Related Allowance	'	'	'	'	'
With an allowance recorded, Recorded Investment	'	'	'	'	132
With an allowance recorded, Unpaid Principle Balance	'	'	'	'	143
Total, Related Allowance	'	'	'	'	37
With no related allowance recorded, Average Recorded Investment	491	424	789	212	'
With no related allowance recorded, Interest Income Recognized	'	8	6	22	'
With an allowance recorded, Average Recorded Investment	'	136	33	143	'
With an allowance recorded, Interest Income Recognized	'	'	'	'	'
Total, Average Recorded Investment	491	560	822	355	'
Total, Interest Income Recognized	'	8	6	22	'
Home Equity Lines of Credit [Member]	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
With no related allowance recorded, Recorded Investment	'	'	'	'	406
Total, Recorded Investment	'	'	'	'	406
With no related allowance recorded, Unpaid Principle Balance	'	'	'	'	860
Total, Unpaid Principle Balance	'	'	'	'	860
With no related allowance recorded, Related Allowance	'	'	'	'	'
With an allowance recorded, Recorded Investment	'	'	'	'	'
With an allowance recorded, Unpaid Principle Balance	'	'	'	'	'
Total, Related Allowance	'	'	'	'	'
With no related allowance recorded, Average Recorded Investment	255	246	496	293	'
With no related allowance recorded, Interest Income Recognized	'	1	1	3	'
With an allowance recorded, Average Recorded Investment	'	'	'	'	'
With an allowance recorded, Interest Income Recognized	'	'	'	'	'
Total, Average Recorded Investment	255	246	496	293	'
Total, Interest Income Recognized	'	1	1	3	'
Other Consumer Loans [Member]	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
With no related allowance recorded, Recorded Investment	268	'	268	'	'
Total, Recorded Investment	268	'	268	'	'
With no related allowance recorded, Unpaid Principle Balance	347	'	347	'	'
Total, Unpaid Principle Balance	347	'	347	'	'
With no related allowance recorded, Related Allowance	'	'	'	'	'
With an allowance recorded, Recorded Investment	'	'	'	'	'
With an allowance recorded, Unpaid Principle Balance	'	'	'	'	'
Total, Related Allowance	'	'	'	'	'
With no related allowance recorded, Average Recorded Investment	236	'	174	'	'
With no related allowance recorded, Interest Income Recognized	'	'	'	'	'
With an allowance recorded, Average Recorded Investment	'	'	'	'	'
With an allowance recorded, Interest Income Recognized	'	'	'	'	'
Total, Average Recorded Investment	236	'	174	'	'
Total, Interest Income Recognized	'	'	'	'	'
Originated Loans [Member]	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
With no related allowance recorded, Recorded Investment	640	'	640	'	5,949
Total, Recorded Investment	1,409	'	1,409	'	10,688
With no related allowance recorded, Unpaid Principle Balance	1,263	'	1,263	'	6,475
Total, Unpaid Principle Balance	2,034	'	2,034	'	11,671
With no related allowance recorded, Related Allowance	'	'	'	'	'
With an allowance recorded, Recorded Investment	769	'	769	'	4,739
With an allowance recorded, Unpaid Principle Balance	771	'	771	'	5,196
Total, Related Allowance	89	'	89	'	616
Acquired Loans [Member]	'	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'	'
With no related allowance recorded, Recorded Investment	3,023	'	3,023	'	'
Total, Recorded Investment	3,023	'	3,023	'	'
With no related allowance recorded, Unpaid Principle Balance	4,746	'	4,746	'	'
Total, Unpaid Principle Balance	4,746	'	4,746	'	'
With no related allowance recorded, Related Allowance	'	'	'	'	'
With an allowance recorded, Recorded Investment	'	'	'	'	'
With an allowance recorded, Unpaid Principle Balance	'	'	'	'	'
Total, Related Allowance	'	'	'	'	'

Loans_Receivable_and_Related_A7

Loans Receivable and Related Allowance for Loan Losses - Nonaccrual Loans by Classes of Loan Portfolio (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	$4,290	$4,093
Commercial and Industrial [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	1,846	1,130
Commercial Mortgage [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	1,627	2,293
Commercial Construction [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	301	'
Residential Mortgage Loans [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	248	424
Home Equity Lines of Credit [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	'	246
Other Consumer Loans [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	268	'
Originated Loans [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	1,409	4,093
Originated Loans [Member] | Commercial and Industrial [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	841	1,130
Originated Loans [Member] | Commercial Mortgage [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	519	2,293
Originated Loans [Member] | Commercial Construction [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	'	'
Originated Loans [Member] | Residential Mortgage Loans [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	'	424
Originated Loans [Member] | Home Equity Lines of Credit [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	'	246
Originated Loans [Member] | Other Consumer Loans [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	49	'
Acquired Loans [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	2,881	'
Acquired Loans [Member] | Commercial and Industrial [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	1,005	'
Acquired Loans [Member] | Commercial Mortgage [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	1,108	'
Acquired Loans [Member] | Commercial Construction [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	301	'
Acquired Loans [Member] | Residential Mortgage Loans [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	248	'
Acquired Loans [Member] | Home Equity Lines of Credit [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	'	'
Acquired Loans [Member] | Other Consumer Loans [Member]	'	'
Financing Receivable Recorded Investment Nonaccrual Loans [Line Items]	'	'
Nonaccrual loans	$219	'

Loans_Receivable_and_Related_A8

Loans Receivable and Related Allowance for Loan Losses - Classes of Loan Portfolio within Company's Internal Risk Rating System (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Commercial:	'	'
Commercial and industrial	$79,038	$62,366
Commercial mortgage	139,287	93,775
Commercial construction	3,671	4,112
Residential mortgage loans	56,780	49,354
Consumer:	'	'
Home equity lines of credit	31,286	20,654
Other consumer loans	22,464	14,298
Total loans	332,526	244,559
Originated Loans [Member]	'	'
Commercial:	'	'
Commercial and industrial	69,464	'
Commercial mortgage	121,190	'
Commercial construction	2,839	'
Residential mortgage loans	48,987	'
Consumer:	'	'
Home equity lines of credit	21,531	'
Other consumer loans	14,832	'
Total loans	278,843	244,559
Acquired Loans [Member]	'	'
Commercial:	'	'
Commercial and industrial	9,574	'
Commercial mortgage	18,097	'
Commercial construction	832	'
Residential mortgage loans	7,793	'
Consumer:	'	'
Home equity lines of credit	9,755	'
Other consumer loans	7,632	'
Total loans	53,683	'
Pass [Member]	'	'
Commercial:	'	'
Commercial and industrial	77,143	55,861
Commercial mortgage	137,201	91,482
Commercial construction	3,179	3,535
Residential mortgage loans	56,518	48,446
Consumer:	'	'
Home equity lines of credit	31,081	20,248
Other consumer loans	22,415	14,298
Total loans	327,537	233,870
Pass [Member] | Originated Loans [Member]	'	'
Commercial:	'	'
Commercial and industrial	68,701	'
Commercial mortgage	120,212	'
Commercial construction	2,839	'
Residential mortgage loans	48,987	'
Consumer:	'	'
Home equity lines of credit	21,531	'
Other consumer loans	14,783	'
Total loans	277,053	'
Pass [Member] | Acquired Loans [Member]	'	'
Commercial:	'	'
Commercial and industrial	8,442	'
Commercial mortgage	16,989	'
Commercial construction	340	'
Residential mortgage loans	7,531	'
Consumer:	'	'
Home equity lines of credit	9,550	'
Other consumer loans	7,632	'
Total loans	50,484	'
Special Mention [Member]	'	'
Commercial:	'	'
Commercial and industrial	'	818
Commercial mortgage	381	'
Commercial construction	'	'
Residential mortgage loans	'	'
Consumer:	'	'
Home equity lines of credit	'	'
Other consumer loans	'	'
Total loans	381	818
Special Mention [Member] | Originated Loans [Member]	'	'
Commercial:	'	'
Commercial and industrial	'	'
Commercial mortgage	381	'
Commercial construction	'	'
Residential mortgage loans	'	'
Consumer:	'	'
Home equity lines of credit	'	'
Other consumer loans	'	'
Total loans	381	'
Special Mention [Member] | Acquired Loans [Member]	'	'
Commercial:	'	'
Commercial and industrial	'	'
Commercial mortgage	'	'
Commercial construction	'	'
Residential mortgage loans	'	'
Consumer:	'	'
Home equity lines of credit	'	'
Other consumer loans	'	'
Total loans	'	'
Substandard [Member]	'	'
Commercial:	'	'
Commercial and industrial	1,895	5,687
Commercial mortgage	1,705	2,293
Commercial construction	492	577
Residential mortgage loans	262	908
Consumer:	'	'
Home equity lines of credit	205	406
Other consumer loans	49	'
Total loans	4,608	9,871
Substandard [Member] | Originated Loans [Member]	'	'
Commercial:	'	'
Commercial and industrial	763	'
Commercial mortgage	597	'
Commercial construction	'	'
Residential mortgage loans	'	'
Consumer:	'	'
Home equity lines of credit	'	'
Other consumer loans	49	'
Total loans	1,409	'
Substandard [Member] | Acquired Loans [Member]	'	'
Commercial:	'	'
Commercial and industrial	1,132	'
Commercial mortgage	1,108	'
Commercial construction	492	'
Residential mortgage loans	262	'
Consumer:	'	'
Home equity lines of credit	205	'
Other consumer loans	'	'
Total loans	3,199	'
Doubtful [Member]	'	'
Commercial:	'	'
Commercial and industrial	'	'
Commercial mortgage	'	'
Commercial construction	'	'
Residential mortgage loans	'	'
Consumer:	'	'
Home equity lines of credit	'	'
Other consumer loans	'	'
Total loans	'	'
Doubtful [Member] | Originated Loans [Member]	'	'
Commercial:	'	'
Commercial and industrial	'	'
Commercial mortgage	'	'
Commercial construction	'	'
Residential mortgage loans	'	'
Consumer:	'	'
Home equity lines of credit	'	'
Other consumer loans	'	'
Total loans	'	'
Doubtful [Member] | Acquired Loans [Member]	'	'
Commercial:	'	'
Commercial and industrial	'	'
Commercial mortgage	'	'
Commercial construction	'	'
Residential mortgage loans	'	'
Consumer:	'	'
Home equity lines of credit	'	'
Other consumer loans	'	'
Total loans	'	'

Loans_Receivable_and_Related_A9

Loans Receivable and Related Allowance for Loan Losses - Classes of Loan Portfolio Summarized by Past Due Status (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	$425	$412
60-89 Days Past Due	585	512
Greater Than 90 Days	2,668	3,448
Total Past Due	3,678	4,372
Current	328,848	240,187
Total loans	332,526	244,559
Commercial and Industrial [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	'	250
Greater Than 90 Days	1,126	880
Total Past Due	1,126	1,130
Current	77,912	61,236
Total loans	79,038	62,366
Commercial Mortgage [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	396	412
60-89 Days Past Due	506	224
Greater Than 90 Days	1,103	1,898
Total Past Due	2,005	2,534
Current	137,282	91,241
Total loans	139,287	93,775
Commercial Construction [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	'	7
Greater Than 90 Days	'	'
Total Past Due	'	'
Current	3,671	4,112
Total loans	3,671	4,112
Residential Mortgage Loans [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	'	'
Greater Than 90 Days	171	424
Total Past Due	171	431
Current	56,609	48,923
Total loans	56,780	49,354
Home Equity Lines of Credit [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	'	'
Greater Than 90 Days	'	246
Total Past Due	'	246
Current	31,286	20,408
Total loans	31,286	20,654
Other Consumer Loans [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	29	'
60-89 Days Past Due	79	31
Greater Than 90 Days	268	'
Total Past Due	376	31
Current	22,088	14,267
Total loans	22,464	14,298
Originated Loans [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	29	'
60-89 Days Past Due	298	'
Greater Than 90 Days	1,409	'
Total Past Due	1,736	'
Current	277,107	'
Total loans	278,843	244,559
Originated Loans [Member] | Commercial and Industrial [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	'	'
Greater Than 90 Days	841	'
Total Past Due	841	'
Current	68,623	'
Total loans	69,464	'
Originated Loans [Member] | Commercial Mortgage [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	219	'
Greater Than 90 Days	519	'
Total Past Due	738	'
Current	120,452	'
Total loans	121,190	'
Originated Loans [Member] | Commercial Construction [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	'	'
Greater Than 90 Days	'	'
Total Past Due	'	'
Current	2,839	'
Total loans	2,839	'
Originated Loans [Member] | Residential Mortgage Loans [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	'	'
Greater Than 90 Days	'	'
Total Past Due	'	'
Current	48,987	'
Total loans	48,987	'
Originated Loans [Member] | Home Equity Lines of Credit [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	'	'
Greater Than 90 Days	'	'
Total Past Due	'	'
Current	21,531	'
Total loans	21,531	'
Originated Loans [Member] | Other Consumer Loans [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	29	'
60-89 Days Past Due	79	'
Greater Than 90 Days	49	'
Total Past Due	157	'
Current	14,675	'
Total loans	14,832	'
Acquired Loans [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	396	'
60-89 Days Past Due	287	'
Greater Than 90 Days	1,259	'
Total Past Due	1,942	'
Current	51,741	'
Total loans	53,683	'
Acquired Loans [Member] | Commercial and Industrial [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	'	'
Greater Than 90 Days	285	'
Total Past Due	285	'
Current	9,289	'
Total loans	9,574	'
Acquired Loans [Member] | Commercial Mortgage [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	396	'
60-89 Days Past Due	287	'
Greater Than 90 Days	584	'
Total Past Due	1,267	'
Current	16,830	'
Total loans	18,097	'
Acquired Loans [Member] | Commercial Construction [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	'	'
Greater Than 90 Days	'	'
Total Past Due	'	'
Current	832	'
Total loans	832	'
Acquired Loans [Member] | Residential Mortgage Loans [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	'	'
Greater Than 90 Days	171	'
Total Past Due	171	'
Current	7,622	'
Total loans	7,793	'
Acquired Loans [Member] | Home Equity Lines of Credit [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	'	'
Greater Than 90 Days	'	'
Total Past Due	'	'
Current	9,755	'
Total loans	9,755	'
Acquired Loans [Member] | Other Consumer Loans [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	'	'
Greater Than 90 Days	219	'
Total Past Due	219	'
Current	7,413	'
Total loans	$7,632	'

Recovered_Sheet1

Loans Receivable and Related Allowance for Loan Losses - Summary of Information Regarding Bank's Troubled Debt Restructurings (Detail) (USD $)	3 Months Ended		6 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Jun. 30, 2013	Sep. 30, 2013	Sep. 30, 2012
	Contract	Contract	Contract	Contract	Contract
Financing Receivable Modifications Number Of Contracts [Line Items]	'	'	'	'	'
Number of Contracts	1	'	'	1	4
Pre-Modification Outstanding Recorded Investments	$77	'	'	$77	$5,422
Post-Modification Outstanding Recorded Investments	77	'	'	77	4,564
Commercial and Industrial [Member]	'	'	'	'	'
Financing Receivable Modifications Number Of Contracts [Line Items]	'	'	'	'	'
Number of Contracts	'	'	'	'	2
Pre-Modification Outstanding Recorded Investments	'	'	'	'	4,583
Post-Modification Outstanding Recorded Investments	'	'	'	'	4,183
Commercial Mortgage [Member]	'	'	'	'	'
Financing Receivable Modifications Number Of Contracts [Line Items]	'	'	'	'	'
Number of Contracts	'	'	'	'	'
Pre-Modification Outstanding Recorded Investments	'	'	'	'	'
Post-Modification Outstanding Recorded Investments	'	'	'	'	'
Commercial Construction [Member]	'	'	'	'	'
Financing Receivable Modifications Number Of Contracts [Line Items]	'	'	'	'	'
Number of Contracts	'	'	'	'	'
Pre-Modification Outstanding Recorded Investments	'	'	'	'	'
Post-Modification Outstanding Recorded Investments	'	'	'	'	'
Residential Mortgage Loans [Member]	'	'	'	'	'
Financing Receivable Modifications Number Of Contracts [Line Items]	'	'	'	'	'
Number of Contracts	1	'	'	1	1
Pre-Modification Outstanding Recorded Investments	77	'	'	77	144
Post-Modification Outstanding Recorded Investments	77	'	'	77	135
Home Equity Lines of Credit [Member]	'	'	'	'	'
Financing Receivable Modifications Number Of Contracts [Line Items]	'	'	'	'	'
Number of Contracts	'	'	1	'	1
Pre-Modification Outstanding Recorded Investments	'	'	'	'	695
Post-Modification Outstanding Recorded Investments	'	'	'	'	246
Other Consumer Loans [Member]	'	'	'	'	'
Financing Receivable Modifications Number Of Contracts [Line Items]	'	'	'	'	'
Number of Contracts	'	'	'	'	'
Pre-Modification Outstanding Recorded Investments	'	'	'	'	'
Post-Modification Outstanding Recorded Investments	'	'	'	'	'

Deposits_Components_of_Deposit

Deposits - Components of Deposits (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Deposits [Abstract]	'	'
Demand, non-interest bearing	$38,070	$28,176
Demand, interest-bearing	43,402	9,392
Money market and savings accounts	108,044	59,636
Time, $100 and over	45,899	33,049
Time, other	105,420	102,790
Total deposits	$340,835	$233,043

Deposits_Additional_Informatio

Deposits - Additional Information (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Deposits [Abstract]	'	'
Brokered certificates of deposit	$27.90	$48.50

Deposits_Scheduled_Maturities_

Deposits - Scheduled Maturities of Time Deposits (Detail) (USD $)	Sep. 30, 2013
In Thousands, unless otherwise specified
Deposits [Abstract]	'
9/30/14	$59,894
9/30/15	40,167
9/30/16	23,803
9/30/17	16,544
9/30/18	10,899
Thereafter	12
Total time deposits	$151,319

Shareholders_Equity_Additional

Shareholders' Equity - Additional Information (Detail) (USD $)

1 Months Ended

3 Months Ended

12 Months Ended

1 Months Ended

9 Months Ended

1 Months Ended

9 Months Ended

1 Months Ended

6 Months Ended

1 Months Ended

6 Months Ended

6 Months Ended

1 Months Ended

1 Months Ended

Feb. 28, 2013

Oct. 28, 2010

Aug. 01, 2008

Feb. 29, 2008

Dec. 31, 2005

Mar. 31, 2013

Dec. 31, 2012

Dec. 31, 2010

Dec. 31, 2009

Sep. 30, 2013

Dec. 31, 2011

Feb. 28, 2013

Sep. 30, 2013

Feb. 28, 2013

Sep. 30, 2013

Feb. 28, 2013

Feb. 20, 2009

Sep. 30, 2013

Dec. 31, 2012

Jun. 30, 2013

Jun. 30, 2013

Feb. 20, 2009

Jun. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Jun. 30, 2013

Jun. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Feb. 29, 2008

Feb. 20, 2009

Feb. 20, 2009

Dec. 18, 2009

Private Placement [Member]

Private Placement [Member]

Affinity Bancorp, Inc. [Member]

Affinity Bancorp, Inc. [Member]

Affinity Bancorp, Inc. [Member]

Series A Preferred Stock [Member]

Series A Preferred Stock [Member]

Series A Preferred Stock [Member]

Series A Preferred Stock [Member]

Series A Preferred Stock [Member]

Series B Preferred Stock [Member]

Series B Preferred Stock [Member]

Series B Preferred Stock [Member]

Series B Preferred Stock [Member]

Series C Preferred Stock [Member]

Series C Preferred Stock [Member]

Series C Preferred Stock [Member]

Series C Preferred Stock [Member]

Non-Management Employee [Member]

Non-Management Employee [Member]

Common Stock Including Additional Paid in Capital [Member]

Cumulative Perpetual Preferred Stock [Member]

Cumulative Perpetual Preferred Stock [Member]

Cumulative Perpetual Preferred Stock [Member]

Private Placement [Member]

Y

First Five Years [Member]

Thereafter [Member]

Y

First Five Years [Member]

Thereafter [Member]

Series A Preferred Stock [Member]

Series B Preferred Stock [Member]

Series C Preferred Stock [Member]

Class of Stock [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Initial offering period

'

'

'

'

'2005

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common stock, shares outstanding

'

'

'

'

2,107,500

'

3,144,053

'

'

6,331,771

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common stock, initial offering price

'

'

'

'

$10

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net proceeds from issuance of common stock

'

'

'

'

$21,000,000

'

'

'

'

'

'

$6,600,000

$6,572,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Warrant outstanding

'

616,727

'

195,227

421,500

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Exercise price of warrant outstanding

'

'

'

12.5

12.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expiration date of warrant outstanding

'

'

'

'October, 2012

'November, 2010

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common stock, shares issued

'

'

'

'

'

'

'

'

'

'

'

'

'

1,915,942

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

976,137

'

'

'

Value of shares issued

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10,046,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7,400,000

'

'

'

Expiration date of warrant outstanding

'

31-Dec-13

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common stock issued for conversion

'

'

39,292

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Conversion of subordinated debentures resulting in additional equity

'

'

390,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Convertible subordinated debentures

'

'

403,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares issued under Deferred Compensation Plan

'

'

'

'

'

'

'

'

20,302

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares forfeited

'

'

'

'

'

50

300

1,003

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares remained outstanding

'

'

'

'

'

21,074

21,074

19,299

20,302

'

19,299

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5,025

1,775

'

'

'

'

Common stock exchange ratio

0.9813

'

'

'

'

'

'

'

'

'

'

'

'

0.9813

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares issued

'

'

'

'

'

'

'

'

'

'

'

1,268,576

'

'

'

1,268,576

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Business acquisition share price related to merger

'

'

'

'

'

'

'

'

'

'

'

'

'

$5.22

'

$5.22

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Value of shares issued in business acquisition

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

6,600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Legal issuance cost

50,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

29,000

'

8,000

Preferred Stock, issued

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4,579

4,579

'

'

'

'

229

229

4,596

4,596

'

'

'

'

'

4,579

229

4,596

Preferred Stock, par value

'

'

'

'

'

'

$100

'

'

$100

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$100

$100

$100

Preferred stock, liquidation preference per share

'

'

'

'

'

'

$1,000

'

'

$1,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$1,000

'

$1,000

Preferred Stock, exercise price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100

'

Aggregate purchase price of treasury shares

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$4,580,000

'

$4,600,000

Expected life of preferred stock liquidation preference

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5

'

'

'

'

5

'

'

'

'

'

'

'

'

'

'

'

'

'

Cumulative Dividends Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5.00%

9.00%

'

9.00%

'

'

'

'

5.00%

9.00%

'

'

'

'

'

'

Stock_Compensation_Program_Add

Stock Compensation Program - Additional Information (Detail) (USD $)	9 Months Ended
	Sep. 30, 2013
Stock Based Compensation Activity [Line Items]	'
Stock Compensation Program, aggregate maximum number of share to grant	825,000
Vesting period of granted stock options	'4 years
Description of termination from the date of grant	'Terminate ten years from the date of the grant
Minimum exercise price per share for shares issued	$10
Weighted average remaining contractual life, outstanding stock options	'4 years 2 months 12 days
Contractual term	'3 years
Options outstanding, intrinsic value	$0
Options exercisable, intrinsic value	0
Average exercise price	'
Unrecognized compensation cost	177,000
Weighted average period for cost is expected to be recognized	'1 year 8 months 12 days
Affinity Bancorp, Inc. [Member]	'
Stock Based Compensation Activity [Line Items]	'
Shares authorized for grant	382,957
Contractual term	'3 years 2 months 12 days
Business combination shares exchange ratio	0.9813
Options to purchase common shares	132,112
Average exercise price	$8.49
Stock options valued at the date of merger	44,000
Restricted Stock [Member]	'
Stock Based Compensation Activity [Line Items]	'
Vesting period of granted stock options	'3 years
Unrecognized compensation cost	$62,000
Unrecognized compensation cost amortized period	30-Jun-16

Stock_Compensation_Program_Sum

Stock Compensation Program - Summary of Stock Option Activity (Detail) (USD $)	9 Months Ended
	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Options, Beginning balance, Shares	712,350
Options, Granted, Shares	'
Options, Forfeited/cancelled, Shares	-2,609
Options, expired, Shares	-30,666
Options, Ending balance, Shares	811,187
Options, Exercisable, Shares	608,687
Options, Beginning balance, Weighted Average Exercise Price	$8.87
Options, Granted, Weighted Average Exercise Price	'
Options, Forfeited/cancelled, Weighted Average Exercise Price	$9.67
Options, Expired, Weighted Average Exercise Price	$6.52
Options, Ending balance, Weighted Average Exercise Price	$8.89
Options, Exercisable, Weighted Average Exercise Price	$9.86
Affinity Bancorp, Inc. [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Options, Acquired in merger with Affinity, Shares	132,112
Options, Granted, Weighted Average Exercise Price	$8.49
Options, Acquired in merger with Affinity, Weighted Average Exercise Price	$8.49

Stock_Compensation_Program_Sum1

Stock Compensation Program - Summary of Stock Option Activity (Parenthetical) (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Stock options outstanding	811,187	712,350
Stock options exercisable	608,687	'
Options exercisable, exercise price	$9.86	'
2008 Acquisition of Prestige [Member] | Organizer Options [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Stock options outstanding	100,000	'
Stock options exercisable	100,000	'
Options exercisable, exercise price	$10	'

Stock_Compensation_Program_Sum2

Stock Compensation Program - Summary of Weighted Average Assumptions (Detail) (USD $)	9 Months Ended
	Sep. 30, 2013
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions And Methodology [Abstract]	'
Dividend yield	0.00%
Expected life	'2 years 7 months 6 days
Expected volatility	33.00%
Risk-free interest rate	0.38%
Weighted average fair value	$0.36
FPFC stock price at date of issuance	$5.22

Stock_Compensation_Program_Sum3

Stock Compensation Program - Summary of Restricted Stock Award Activity (Detail)	9 Months Ended
	Sep. 30, 2013
Schedule Of Share Based Compensation Restricted Stock And Restricted Stock Units Activity [Abstract]	'
Restricted stock award, Beginning balance, Shares	21,074
Restricted stock award, Granted, Shares	3,625
Restricted stock award, Forfeited/cancelled, Shares	-375
Restricted stock award, Ending balance, Shares	24,324

Stock_Compensation_Program_Sum4

Stock Compensation Program - Summary of Restricted Stock Award Activity (Parenthetical) (Detail) (2009 Deferred Compensation Plan [Member])	9 Months Ended
	Sep. 30, 2013
2009 Deferred Compensation Plan [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Restricted stock award, Granted, Shares	19,299

Financial_Instruments_with_Off1

Financial Instruments with Off-Balance Sheet Risk - Additional Information (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Loss Contingencies [Line Items]	'	'
Customer deposits pledged to bank as collateral for the letter of credit	$199	$199
Financial Standby Letters of Credit [Member]	'	'
Loss Contingencies [Line Items]	'	'
Commitments issued under lines of credit	1,300	'
Customer Letter of Credit Issued [Member]	'	'
Loss Contingencies [Line Items]	'	'
Commitments issued under lines of credit	199	199
Bank Letter of Credit Issued [Member]	'	'
Loss Contingencies [Line Items]	'	'
Commitments issued under lines of credit	512	'
Lines of Credit [Member]	'	'
Loss Contingencies [Line Items]	'	'
Commitments issued under lines of credit	74,400	53,700
Performance Standby Letters of Credit [Member]	'	'
Loss Contingencies [Line Items]	'	'
Commitments issued under lines of credit	$1,300	$1,300

Regulatory_Matters_Schedule_of

Regulatory Matters - Schedule of Bank's Capital Amounts and Ratios (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Banking And Thrift [Abstract]	'	'
Total capital (to risk-weighted assets), Actual Amount	$41,488	$28,073
Tier 1 capital (to risk-weighted assets), Actual Amount	39,217	25,703
Tier 1 capital (to total assets), Actual Amount	39,217	25,703
Total capital (to risk-weighted assets), Actual Ratio	12.96%	12.48%
Tier 1 capital (to risk-weighted assets), Actual Ratio	12.25%	11.39%
Tier 1 capital (to total assets), Actual Ratio	9.54%	9.40%
Total capital (to risk-weighted assets), Minimum Capital Requirement Amount	25,601	18,054
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement Amount	12,801	9,027
Tier 1 capital (to total assets), Minimum Capital Requirement Amount	16,445	10,934
Total capital (to risk-weighted assets), Minimum Capital Requirement Ratio	8.00%	8.00%
Tier 1 capital (to risk-weighted assets), Minimum Capital Requirement Ratio	4.00%	4.00%
Tier 1 capital (to total assets), Minimum Capital Requirement Ratio	4.00%	4.00%
Total capital (to risk-weighted assets), To be Well Capitalized under Prompt Corrective Action Provisions Amount	32,002	22,568
Tier 1 capital (to risk-weighted assets), To be Well Capitalized under Prompt Corrective Action Provisions Amount	19,201	13,541
Tier 1 capital (to total assets), To be Well Capitalized under Prompt Corrective Action Provisions Amount	$20,556	$13,668
Total capital (to risk-weighted assets), To be Well Capitalized under Prompt Corrective Action Provisions Ratio	10.00%	10.00%
Tier 1 capital (to risk-weighted assets), To be Well Capitalized under Prompt Corrective Action Provisions Ratio	6.00%	6.00%
Tier 1 capital (to total assets), To be Well Capitalized under Prompt Corrective Action Provisions Ratio	5.00%	5.00%

Fair_Value_Measurements_and_Fa2

Fair Value Measurements and Fair Values of Financial Instruments - Summary of Financial Assets Measured at Fair Value on Recurring Basis (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	$55,691	$16,679
Obligations of U.S. Government Agencies and Corporations [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	24,216	1,001
Obligations of States and Political Subdivisions [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	7,952	11,857
Federal Agency Mortgage-Backed Securities [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	21,421	3,681
Federal Agency CMO's [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	853	'
Other Debt Securities [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	1,222	'
Money Market Mutual Fund [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	27	140
(Level 1) Quoted Prices in Active Markets for Identical Assets [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	27	140
(Level 1) Quoted Prices in Active Markets for Identical Assets [Member] | Obligations of U.S. Government Agencies and Corporations [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	'	'
(Level 1) Quoted Prices in Active Markets for Identical Assets [Member] | Obligations of States and Political Subdivisions [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	'	'
(Level 1) Quoted Prices in Active Markets for Identical Assets [Member] | Federal Agency Mortgage-Backed Securities [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	'	'
(Level 1) Quoted Prices in Active Markets for Identical Assets [Member] | Federal Agency CMO's [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	'	'
(Level 1) Quoted Prices in Active Markets for Identical Assets [Member] | Other Debt Securities [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	'	'
(Level 1) Quoted Prices in Active Markets for Identical Assets [Member] | Money Market Mutual Fund [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	27	140
(Level 2) Significant Other Observable Inputs [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	55,664	16,539
(Level 2) Significant Other Observable Inputs [Member] | Obligations of U.S. Government Agencies and Corporations [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	24,216	1,001
(Level 2) Significant Other Observable Inputs [Member] | Obligations of States and Political Subdivisions [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	7,952	11,857
(Level 2) Significant Other Observable Inputs [Member] | Federal Agency Mortgage-Backed Securities [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	21,421	3,681
(Level 2) Significant Other Observable Inputs [Member] | Federal Agency CMO's [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	853	'
(Level 2) Significant Other Observable Inputs [Member] | Other Debt Securities [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	1,222	'
(Level 2) Significant Other Observable Inputs [Member] | Money Market Mutual Fund [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	'	'
(Level 3) Significant Unobservable Inputs [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	'	'
(Level 3) Significant Unobservable Inputs [Member] | Obligations of U.S. Government Agencies and Corporations [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	'	'
(Level 3) Significant Unobservable Inputs [Member] | Obligations of States and Political Subdivisions [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	'	'
(Level 3) Significant Unobservable Inputs [Member] | Federal Agency Mortgage-Backed Securities [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	'	'
(Level 3) Significant Unobservable Inputs [Member] | Federal Agency CMO's [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	'	'
(Level 3) Significant Unobservable Inputs [Member] | Other Debt Securities [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	'	'
(Level 3) Significant Unobservable Inputs [Member] | Money Market Mutual Fund [Member]	'	'
Investment securities available for sale:	'	'
Total assets measured at fair value on a recurring basis	'	'

Fair_Value_Measurements_and_Fa3

Fair Value Measurements and Fair Values of Financial Instruments - Summary of Financial Assets Measured at Fair Value on Nonrecurring Basis (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets measured at fair value on a nonrecurring basis	$5,325	$10,256
Impaired Loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets measured at fair value on a nonrecurring basis	4,343	10,072
Other Real Estate Owned [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets measured at fair value on a nonrecurring basis	907	184
Repossessed Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets measured at fair value on a nonrecurring basis	75	'
(Level 1) Quoted Prices in Active Markets for Identical Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets measured at fair value on a nonrecurring basis	'	'
(Level 1) Quoted Prices in Active Markets for Identical Assets [Member] | Impaired Loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets measured at fair value on a nonrecurring basis	'	'
(Level 1) Quoted Prices in Active Markets for Identical Assets [Member] | Other Real Estate Owned [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets measured at fair value on a nonrecurring basis	'	'
(Level 1) Quoted Prices in Active Markets for Identical Assets [Member] | Repossessed Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets measured at fair value on a nonrecurring basis	'	'
(Level 2) Significant Other Observable Inputs [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets measured at fair value on a nonrecurring basis	'	'
(Level 2) Significant Other Observable Inputs [Member] | Impaired Loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets measured at fair value on a nonrecurring basis	'	'
(Level 2) Significant Other Observable Inputs [Member] | Other Real Estate Owned [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets measured at fair value on a nonrecurring basis	'	'
(Level 2) Significant Other Observable Inputs [Member] | Repossessed Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets measured at fair value on a nonrecurring basis	'	'
(Level 3) Significant Unobservable Inputs [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets measured at fair value on a nonrecurring basis	5,325	10,256
(Level 3) Significant Unobservable Inputs [Member] | Impaired Loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets measured at fair value on a nonrecurring basis	4,343	10,072
(Level 3) Significant Unobservable Inputs [Member] | Other Real Estate Owned [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets measured at fair value on a nonrecurring basis	907	184
(Level 3) Significant Unobservable Inputs [Member] | Repossessed Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets measured at fair value on a nonrecurring basis	$75	'

Fair_Value_Measurements_and_Fa4

Fair Value Measurements and Fair Values of Financial Instruments - Quantitative Information About Level 3 Fair Value Measurements (Detail) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Impaired Loans [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Fair Value	4,343	10,072
Impaired Loans [Member] | Unobservable Inputs Appraisal Adjustments [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Unobservable Inputs	'Appraisal adjustments	'Appraisal adjustments
Impaired Loans [Member] | Unobservable Inputs Valuation Adjustments [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Unobservable Inputs	'Valuation adjustments	'Valuation adjustments
Impaired Loans [Member] | Unobservable Inputs Liquidation Expenses [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Estimated Ratings, Weighted Average	6.91%	9.90%
Unobservable Inputs	'Liquidation expenses	'Liquidation expenses
Estimated Ratings	5.00%	5.00%
Impaired Loans [Member] | Appraisal of Real Estate Collateral [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Valuation Techniques	'Appraisal of real estate collateral	'Appraisal of real estate collateral
Impaired Loans [Member] | Appraisal of Real Estate Collateral [Member] | Unobservable Inputs Appraisal Adjustments [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Estimated Ratings, Weighted Average	6.20%	8.60%
Estimated Ratings	20.00%	15.00%
Impaired Loans [Member] | Valuation of Business Assets Used as Collateral [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Valuation Techniques	'Valuation of business assets used as collateral	'Valuation of business assets used as collateral
Impaired Loans [Member] | Valuation of Business Assets Used as Collateral [Member] | Unobservable Inputs Valuation Adjustments [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Estimated Ratings	25.00%	25.00%
Estimated Ratings	30.00%	30.00%
Other Real Estate Owned [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Fair Value	907	184
Other Real Estate Owned [Member] | Unobservable Inputs Appraisal Adjustments [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Unobservable Inputs	'Appraisal adjustments	'Appraisal adjustments
Other Real Estate Owned [Member] | Unobservable Inputs Liquidation Expenses [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Estimated Ratings, Weighted Average	10.09%	8.00%
Unobservable Inputs	'Liquidation expenses	'Liquidation expenses
Estimated Ratings	35.00%	10.00%
Other Real Estate Owned [Member] | Appraisal of Collateral [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Valuation Techniques	'Appraisal of collateral	'Appraisal of collateral
Other Real Estate Owned [Member] | Appraisal of Collateral [Member] | Unobservable Inputs Appraisal Adjustments [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Estimated Ratings	90.00%	'
Minimum [Member] | Impaired Loans [Member] | Appraisal of Real Estate Collateral [Member] | Unobservable Inputs Appraisal Adjustments [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Estimated Ratings	0.00%	0.00%
Minimum [Member] | Other Real Estate Owned [Member] | Unobservable Inputs Liquidation Expenses [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Estimated Ratings	0.00%	5.00%
Minimum [Member] | Other Real Estate Owned [Member] | Appraisal of Collateral [Member] | Unobservable Inputs Appraisal Adjustments [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Estimated Ratings	0.00%	'
Maximum [Member] | Impaired Loans [Member] | Unobservable Inputs Liquidation Expenses [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Estimated Ratings	10.00%	10.00%

Fair_Value_Measurements_and_Fa5

Fair Value Measurements and Fair Values of Financial Instruments - Additional Information (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Impaired loan portfolio	$4,432	$10,688
Impaired loan carried cost	769	4,739
Impaired loan carried cost with no specific reserve allocation	3,663	5,949
Net of valuation allowance	89	616
Assets fair value disclosure nonrecurring	907	184
Repossessed assets	75	'
Acquired Loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Impaired loan portfolio	3,023	'
Impaired loan carried cost	'	'
Fair value of impaired loan	3,000	'
Impaired loan carried cost with no specific reserve allocation	3,023	'
Net of valuation allowance	'	'
Other Real Estate Owned [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets fair value disclosure nonrecurring	907	184
Impaired Originated Loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Impaired loan carried cost	769	'
Fair value of impaired loan	680	'
Impaired loan carried cost with no specific reserve allocation	$640	'

Fair_Value_Measurements_and_Fa6

Fair Value Measurements and Fair Values of Financial Instruments - Summary of Estimated Fair Values of Company's Financial Instruments (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Cash and cash equivalents, Carrying Amount	$19,082	$11,016	$9,094	$16,218
Securities available for sale, Carrying Amount	55,691	16,079	'	'
Securities held to maturity, Carrying Amount	11,005	'	'	'
Loans receivable, net, Carrying Amount	329,961	241,815	'	'
Restricted stock, Carrying Amount	2,461	1,337	'	'
Accrued interest receivable, Carrying Amount	1,423	1,040	'	'
Deposits, Carrying Amount	340,835	233,043	'	'
Short-term borrowings, Carrying Amount	26,875	'	'	'
Long-term debt, Carrying Amount	11,000	13,000	'	'
Accrued interest payable, Carrying Amount	372	378	'	'
Commitments to extend credit, Carrying Amount	'	'	'	'
Cash and cash equivalents, Fair Value	19,082	11,016	'	'
Securities available for sale, Fair Value	55,691	16,679	'	'
Securities held to maturity, Fair Value	10,428	0	'	'
Loans receivable, net, Fair Value	336,641	245,493	'	'
Restricted stock, Fair Value	2,461	1,337	'	'
Accrued interest receivable, Fair Value	1,423	1,040	'	'
Deposits, Fair Value	342,183	235,563	'	'
Short-term borrowings, Fair Value	26,875	'	'	'
Long-term debt, Fair Value	10,806	12,902	'	'
Accrued interest payable, Fair Value	460	378	'	'
Commitments to extend credit, Fair Value	'	'	'	'
(Level 1) Quoted Prices in Active Markets for Identical Assets [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Cash and cash equivalents, Fair Value	19,082	11,016	'	'
Securities available for sale, Fair Value	27	140	'	'
Securities held to maturity, Fair Value	'	'	'	'
Loans receivable, net, Fair Value	'	'	'	'
Restricted stock, Fair Value	'	'	'	'
Accrued interest receivable, Fair Value	'	'	'	'
Deposits, Fair Value	'	'	'	'
Short-term borrowings, Fair Value	'	'	'	'
Long-term debt, Fair Value	'	'	'	'
Accrued interest payable, Fair Value	'	'	'	'
Commitments to extend credit, Fair Value	'	'	'	'
(Level 2) Significant Other Observable Inputs [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Cash and cash equivalents, Fair Value	'	'	'	'
Securities available for sale, Fair Value	55,664	16,539	'	'
Securities held to maturity, Fair Value	10,428	'	'	'
Loans receivable, net, Fair Value	'	'	'	'
Restricted stock, Fair Value	2,461	1,337	'	'
Accrued interest receivable, Fair Value	1,423	1,040	'	'
Deposits, Fair Value	342,183	235,563	'	'
Short-term borrowings, Fair Value	26,875	'	'	'
Long-term debt, Fair Value	10,806	12,902	'	'
Accrued interest payable, Fair Value	460	378	'	'
Commitments to extend credit, Fair Value	'	'	'	'
(Level 3) Significant Unobservable Inputs [Member]	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'	'
Cash and cash equivalents, Fair Value	'	'	'	'
Securities available for sale, Fair Value	'	'	'	'
Securities held to maturity, Fair Value	'	'	'	'
Loans receivable, net, Fair Value	336,641	245,493	'	'
Restricted stock, Fair Value	'	'	'	'
Accrued interest receivable, Fair Value	'	'	'	'
Deposits, Fair Value	'	'	'	'
Short-term borrowings, Fair Value	'	'	'	'
Long-term debt, Fair Value	'	'	'	'
Accrued interest payable, Fair Value	'	'	'	'
Commitments to extend credit, Fair Value	'	'	'	'