Limestone Bancorp (LMST) 10-Q 11 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2015	Apr. 30, 2015	Dec. 31, 2014
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	PBIB
Entity Registrant Name	PORTER BANCORP, INC.
Entity Central Index Key	1358356
Current Fiscal Year End Date	-19
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		19,205,495
Nonvoting Common Stock
Common stock, shares outstanding	6,458,000	6,458,000	0

Unaudited_Consolidated_Balance

Unaudited Consolidated Balance Sheets (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Assets
Cash and due from banks	$7,899	$14,169
Interest bearing deposits in banks	101,872	66,011
Cash and cash equivalents	109,771	80,180
Securities available for sale	157,290	190,791
Securities held to maturity (fair value of $44,895 and $44,498, respectively)	42,263	42,325
Loans held for sale		8,926
Loans, net of allowance of $18,597 and $19,364, respectively	613,831	605,635
Premises and equipment, net	19,323	19,507
Other real estate owned	43,618	46,197
Federal Home Loan Bank stock	7,323	7,323
Bank owned life insurance	9,231	9,167
Accrued interest receivable and other assets	7,056	7,938
Total assets	1,009,706	1,017,989
Deposits
Non-interest bearing	108,011	114,910
Interest bearing	822,498	811,931
Total deposits	930,509	926,841
Repurchase agreements	1,145	1,341
Federal Home Loan Bank advances	3,597	15,752
Accrued interest payable and other liabilities	10,758	10,640
Subordinated capital note	4,725	4,950
Junior subordinated debentures	25,000	25,000
Total liabilities	975,734	984,524
Stockholders' equity
Total preferred stockholders' equity	2,771	8,552
Common stock, no par, 86,000,000 shares authorized, 19,205,495 and 14,890,514 voting, and 6,458,000 and 0 non-voting shares issued and outstanding, respectively	119,019	113,238
Additional paid-in capital	21,491	21,442
Retained deficit	-107,001	-107,595
Accumulated other comprehensive income (loss)	-2,308	-2,172
Total common stockholders' equity	31,201	24,913
Total stockholders' equity	33,972	33,465
Total liabilities and stockholders' equity	1,009,706	1,017,989
Preferred stock Series B
Stockholders' equity
Preferred stock		2,229
Total stockholders' equity		2,229
Preferred stock Series D
Stockholders' equity
Preferred stock		3,552
Total stockholders' equity		3,552
Preferred stock Series E
Stockholders' equity
Preferred stock	1,644	1,644
Total stockholders' equity	1,644	1,644
Preferred stock Series F
Stockholders' equity
Preferred stock	1,127	1,127
Total stockholders' equity	$1,127	$1,127

Unaudited_Consolidated_Balance1

Unaudited Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Securities held to maturity, fair value	44,895,000	44,498,000
Loans, allowance	18,597,000	19,364,000
Preferred stock, no par
Common stock, no par
Common stock, shares authorized	86,000,000	86,000,000
Preferred stock Series B
Preferred stock, issued	0	40,536
Preferred stock, outstanding	0	40,536
Preferred stock Series D
Preferred stock, issued	0	64,580
Preferred stock, outstanding	0	64,580
Preferred stock Series E
Preferred stock, issued	6,198	6,198
Preferred stock, outstanding	6,198	6,198
Preferred stock, Liquidation preference	6,200,000	6,200,000
Preferred stock Series F
Preferred stock, issued	4,304	4,304
Preferred stock, outstanding	4,304	4,304
Preferred stock, Liquidation preference	4,300,000	4,300,000
Voting Common Stock
Common stock, shares issued	19,205,495	14,890,514
Common stock, shares outstanding	19,205,495	14,890,514
Nonvoting Common Stock
Common stock, shares issued	6,458,000	0
Common stock, shares outstanding	6,458,000	0

Unaudited_Consolidated_Stateme

Unaudited Consolidated Statements of Operations (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Interest income
Loans, including fees	$7,755	$8,321
Taxable securities	1,126	1,173
Tax exempt securities	203	241
Federal funds sold and other	119	162
Interest and Dividend Income, Operating, Total	9,203	9,897
Interest expense
Deposits	1,692	2,361
Junior subordinated debentures	152	152
Subordinated capital note	42	50
Federal Home Loan Bank advances	27	33
Federal funds purchased and other		1
Interest Expense, Total	1,913	2,597
Net interest income	7,290	7,300
Provision for loan losses	0	0
Net interest income after provision for loan losses	7,290	7,300
Non-interest income
Service charges on deposit accounts	409	468
Bank card interchange fees	203	161
Other real estate owned rental income	357	7
Net gain on sales of securities	1,497	44
Other	230	235
Noninterest Income, Total	2,696	915
Non-interest expense
Salaries and employee benefits	3,847	3,741
Occupancy and equipment	870	892
Professional fees	979	289
FDIC insurance	570	540
Data processing expense	304	269
State franchise and deposit tax	285	425
Other real estate owned expense	733	662
Loan collection expense	283	539
Other	1,521	1,145
Noninterest Expense, Total	9,392	8,502
Income (loss) before income taxes	594	-287
Income tax expense (benefit)	0	0
Net income (loss)	594	-287
Less:
Dividends and accretion on preferred stock		786
Earnings (loss) allocated to participating securities	185	-97
Net income (loss) attributable to common shareholders	$409	($976)
Basic and diluted earnings (loss) per common share	$0.02	($0.08)

Unaudited_Consolidated_Stateme1

Unaudited Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Net income (loss)	$594	($287)
Unrealized gain (loss) on securities:
Unrealized gain (loss) arising during the period	-1,633	1,589
Reclassification adjustment for losses (gains) included in net income	-1,497	-44
Net unrealized gain/(loss) recognized in comprehensive income	-136	1,633
Tax effect	0	0
Other comprehensive income (loss)	-136	1,663
Comprehensive income	$458	$1,346

Unaudited_Consolidated_Stateme2

Unaudited Consolidated Statements of Changes in Stockholders' Equity (USD $)	Total	Voting Common Stock	Nonvoting Common Stock	Series B Preferred Stock	Series D Preferred Stock	non-voting noncumulative non-convertible Series E perpetual preferred stock	non-voting noncumulative non-convertible Series F perpetual preferred stock	Common Stock	Additional Paid-in Capital	Retained Deficit	Accumulated Other Comprehensive Income (Loss)
In Thousands, except Share data	USD ($)			USD ($)	USD ($)	USD ($)	USD ($)	USD ($)	USD ($)	USD ($)	USD ($)
Beginning Balances at Dec. 31, 2014	$33,465			$2,229	$3,552	$1,644	$1,127	$113,238	$21,442	($107,595)	($2,172)
Beginning Balances (in shares) at Dec. 31, 2014		14,890,514		40,536	64,580	6,198	4,304	14,890,514
Issuance of unvested stock		800,000						800,000
Terminated stock	538,479	-538,479						-538,479
Forfeited unvested stock		-140						-140
Stock-based compensation expense	49								49
Net income	594									594
Net change in accumulated other comprehensive income, net of taxes	-136										-136
Conversion of preferred stock to common and non-voting common (in shares)		4,053,600	6,458,000	-40,536	-64,580			10,511,600
Conversion of preferred stock to common and non-voting common				-2,229	-3,552			5,781
Ending Balances at Mar. 31, 2015	$33,972					$1,644	$1,127	$119,019	$21,491	($107,001)	($2,308)
Ending Balances (in shares) at Mar. 31, 2015		19,205,495	6,458,000			6,198	4,304	25,663,495

Unaudited_Consolidated_Stateme3

Unaudited Consolidated Statements of Cash Flows (USD $)	3 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Cash flows from operating activities
Net income (loss)	$594	($287)	($11,200)
Adjustments to reconcile net loss to net cash from operating activities
Depreciation and amortization	422	418
Provision for loan losses	0	0	7,100
Net amortization on securities	354	400
Stock-based compensation expense	49	133
Net loss (gain) on sales of loans held for sale	281	-24
Loans originated for sale	-433	-872
Proceeds from sales of loans held for sale	9,078	1,045
Net (gain) loss on sales of other real estate owned	-3
Net write-down of other real estate owned	300	250
Net realized gain on sales of investment securities	-1,497	-44
Earnings on bank owned life insurance, net of premium expense	-64	-70
Net change in accrued interest receivable and other assets	783	-879
Net change in accrued interest payable and other liabilities	118	-349
Net cash from operating activities	9,982	-279
Cash flows from investing activities
Purchases of available for sale securities	-4,927	-6,183
Sales of available for sale securities	34,138	329
Maturities and prepayments of available for sale securities	5,358	3,808
Proceeds from mandatory redemption of Federal Home Loan Bank stock		2,749
Proceeds from sale of other real estate owned	2,629	2,075
Loan originations and payments, net	-8,618	6,608
Purchases of premises and equipment, net	-63	-72
Net cash from investing activities	28,517	9,314
Cash flows from financing activities
Net change in deposits	3,668	-12,832
Net change in repurchase agreements	-196	-230
Repayment of Federal Home Loan Bank advances	-17,155	-172
Advances from Federal Home Loan Bank	5,000	25
Repayment of subordinated capital note	-225	-225
Net cash from financing activities	-8,908	-13,434
Net change in cash and cash equivalents	29,591	-4,399
Beginning cash and cash equivalents	80,180	111,134	111,134
Ending cash and cash equivalents	109,771	106,735	80,180
Supplemental cash flow information:
Interest paid	1,906	2,491
Income taxes paid (refunded)	0	0
Supplemental non-cash disclosure:
Transfer from loans to other real estate	$347	$17,351

Basis_of_Presentation_and_Summ

Basis of Presentation and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2015
Basis of Presentation and Summary of Significant Accounting Policies	Note 1 – Basis of Presentation and Summary of Significant Accounting Policies
	Basis of Presentation – The consolidated financial statements include Porter Bancorp, Inc. (Company) and its subsidiary, PBI Bank (Bank). The Company owns a 100% interest in the Bank. All significant inter-company transactions and accounts have been eliminated in consolidation.
	The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, the financial statements do not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2015 are not necessarily indicative of the results that may be expected for the entire year. A description of other significant accounting policies is presented in the notes to the Consolidated Financial Statements for the year ended December 31, 2014 included in the Company’s Annual Report on Form 10-K.
	Use of Estimates – To prepare financial statements in conformity with U.S. generally accepted accounting principles, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided, and future results could differ.
	Reclassifications – Some items in the prior year financial statements were reclassified to conform to the current presentation. The reclassifications did not impact net income (loss) or stockholders’ equity.

Going_Concern_Considerations_a

Going Concern Considerations and Future Plans	3 Months Ended
	Mar. 31, 2015
Going Concern Considerations and Future Plans	Note 2 – Going Concern Considerations and Future Plans
	The consolidated financial statements have been prepared on a going concern basis, which contemplates the realization of assets and the satisfaction of liabilities in the normal course of business for the foreseeable future. However, the events and circumstances described in this Note create substantial doubt about the Company’s ability to continue as a going concern.
	During the first three months of 2015, we reported net income attributable to common shareholders of $409,000, compared with net loss attributable to common shareholders of $976,000 for the first three months of 2014. The increase in 2015 compared to 2014 is primarily attributable to an increase in non-interest income, specifically gains on sales of securities and other real estate owned (OREO) income.
	At March 31, 2015, we continued to be involved in various legal proceedings in which we dispute the material factual allegations against us. After conferring with our legal advisors, we believe we have meritorious grounds on which to prevail. If we do not prevail, the ultimate outcome of any one of these matters could have a material adverse effect on our financial condition, results of operations, or cash flows. These matters are more fully described in Note 13 – “Contingencies”.
	For the year ended December 31, 2014, we reported a net loss of $11.2 million. This loss was attributable primarily to loan loss provision of $7.1 million, OREO expense of $5.8 million resulting from fair value write-downs driven by new appraisals and reduced marketing prices, and ongoing operating expense, along with $3.0 million in loan collection expenses. We also had lower net interest margin due to lower average loans outstanding, loans re-pricing at lower rates, and the level of non-performing loans in our portfolio. After deductions for dividends and accretion on preferred stock of $2.4 million, allocating losses to participating securities of $3.2 million, and the effect of the exchange of preferred stock for common stock of $36.1 million, net income attributable to common shareholders was $19.4 million for the year ended December 31, 2014, compared with a net loss attributable to common shareholders of $3.4 million for the year ended December 31, 2013.
	In June 2011, the Bank agreed to a Consent Order with the FDIC and KDFI in which the Bank agreed, among other things, to improve asset quality, reduce loan concentrations, and maintain a minimum Tier 1 leverage ratio of 9% and a minimum total risk based capital ratio of 12%. In October 2012, the Bank entered into a revised Consent Order with the FDIC and KDFI again agreeing to maintain a minimum Tier 1 leverage ratio of 9% and a minimum total risk based capital ratio of 12%. The Bank also agreed that if it should be unable to reach the required capital levels, and if directed in writing by the FDIC, then the Bank would within 30 days develop, adopt and implement a written plan to sell or merge itself into another federally insured financial institution or otherwise immediately obtain a sufficient capital investment into the Bank to fully meet the capital requirements.
	We expect to continue to work with our regulators toward capital ratio compliance. The revised Consent Order also requires the Bank to continue to adhere to the plans implemented in response to the June 2011 Consent Order, and includes the substantive provisions of the June 2011 Consent Order. The revised Consent Order was included in our Current Report on 8-K filed on September 19, 2012. As of March 31, 2015, the capital ratios required by the Consent Order were not met.
	In order to meet these capital requirements, the Board of Directors and management are continuing to evaluate strategies to achieve the following objectives:
		•	Increasing capital through the issuance of common stock to new and existing shareholders.
		•	Continuing to operate the Company and Bank in a safe and sound manner. We have reduced our lending concentrations, and the size of our balance sheet while continuing to remediate non-performing loans, and reduce other noninterest expense through the disposition of OREO.
		•	Evaluating and implementing improvements to our internal processes and procedures, distribution of labor, and work-flow to ensure we have adequately and appropriately deployed resources in an efficient manner in the current environment.
		•	Executing on our commitment to improve credit quality and reduce loan concentrations and balance sheet risk.
		•	We have reduced the size of our loan portfolio significantly from $1.3 billion at December 31, 2010 to $632.4 million at March 31, 2015.
		•	We have reduced our construction and development loans to less than 75% of total risk-based capital at March 31, 2015.
		•	We have reduced our non-owner occupied commercial real estate loans, construction and development loans, and multi-family residential real estate loans. These loans represented 243% of total risk-based capital at March 31, 2015, down from 262% at December 31, 2014.
		•	Executing on our commitment to sell OREO and reinvest in quality income producing assets.
		•	Our acquisition of real estate assets through the loan remediation process increased during 2014, as we acquired $32.3 million of OREO in 2014 compared with $20.6 million during 2013. We acquired $347,000 in the first three months of 2015. Additionally, nonaccrual loans totaled $36.5 million at March 31, 2015, and we expect to resolve many of these loans by foreclosure which could result in further additions to our OREO portfolio.
		•	We incurred OREO losses totaling $297,000 during the first three months of 2015, comprised of $300,000 in fair value write-downs to reflect declines in appraisal valuations and changes in our pricing strategies, offset by $3,000 in net gain on sales of OREO.
		•	To ensure we maximize the value we receive upon the sale of OREO, we continually evaluate sales opportunities. Proceeds from the sale of OREO totaled $2.6 million for the three months ended March 31, 2015, and $2.1 million for the three months ended March 31, 2014.
		•	Real estate construction represents 42% of the OREO portfolio at March 31, 2015 compared with 40% at December 31, 2014. Commercial real estate represents 33% of the OREO portfolio at March 31, 2015 compared with 31% at December 31, 2014, and 1-4 family residential properties represent 14% of the portfolio at March 31, 2015 compared with 17% at December 31, 2014.
	Bank regulatory agencies can exercise discretion when an institution does not meet the terms of a consent order. Based on individual circumstances, the agencies may issue mandatory directives, impose monetary penalties, initiate changes in management, or take more serious adverse actions such as directing a bank to seek a buyer or taking a bank into receivership.
	The Company’s liquid assets were $1.6 million at March 31, 2015. Since the Bank is unlikely to be in a position to pay dividends to the parent company for the foreseeable future, cash inflows for the parent are limited to earnings on investment securities, sales of investment securities, interest on deposits with the Bank, the issuance of new debt, or the issuance of capital securities. Ongoing operating expenses of the parent company are forecasted at approximately $1.0 million for 2015.
	Effective with the fourth quarter of 2011, we began deferring interest payments on the junior subordinated debentures relating to our trust preferred securities. Deferring interest payments on the junior subordinated debentures resulted in a deferral of distributions on our trust preferred securities. If we defer distributions on our trust preferred securities for 20 consecutive quarters, we must pay all deferred distributions in full or we will be in default. Our deferral period expires in the third quarter of 2016. Deferred distributions on our trust preferred securities, which totaled $2.3 million as of March 31, 2015, are cumulative, and unpaid distributions accrue and compound on each subsequent payment date. If as a result of a default we become subject to any liquidation, dissolution or winding up, holders of the trust preferred securities will be entitled to receive the liquidation amounts to which they are entitled, including all accrued and unpaid distributions, before any distribution can be made to our shareholders. In addition, the holders of our Series E and Series F Preferred Shares will be entitled to receive liquidation distributions totaling $10.5 million before any distribution can be made to the holders of our common shares.

Securities

Securities	3 Months Ended
	Mar. 31, 2015
Securities	Note 3 – Securities
	The fair value of available for sale securities and the related gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) were as follows:
		Amortized		Gross			Gross			Fair Value
		Cost		Unrealized			Unrealized
				Gains			Losses
		(in thousands)
	March 31, 2015
	Available for sale
	U.S. Government and federal agency	$	30,073	$	235		$	(283	)	$	30,025
	Agency mortgage-backed: residential		104,912		2,136			(92	)		106,956
	State and municipal		7,118		408			—			7,526
	Corporate bonds		12,052		258			(192	)		12,118
	Other debt securities		572		93			—			665
	Total available for sale	$	154,727	$	3,130		$	(567	)	$	157,290
	Held to maturity
	State and municipal	$	42,263	$	2,632		$	—		$	44,895
	Total held to maturity	$	42,263	$	2,632		$	—		$	44,895
	December 31, 2014
	Available for sale
	U.S. Government and federal agency	$	35,725	$	308		$	(590	)	$	35,443
	Agency mortgage-backed: residential		121,985		1,970			(357	)		123,598
	State and municipal		11,690		722			(8	)		12,404
	Corporate bonds		18,087		853			(252	)		18,688
	Other debt securities		572		86			—			658
	Total available for sale	$	188,059	$	3,939		$	(1,207	)	$	190,791
	Held to maturity
	State and municipal	$	42,325	$	2,173		$	—		$	44,498
	Total held to maturity	$	42,325	$	2,173		$	—		$	44,498
	Sales and calls of available for sale securities were as follows:
		Three Months Ended
		March 31,
		2015		2014
		(in thousands)
	Proceeds	$	34,138	$	329
	Gross gains		1,551		44
	Gross losses		54		—
	The amortized cost and fair value of the debt investment securities portfolio are shown by contractual maturity. Contractual maturities may differ from actual maturities if issuers have the right to call or prepay obligations with or without call or prepayment penalties. Mortgage-backed securities not due at a single maturity date are detailed separately.
		March 31, 2015
		Amortized		Fair
		Cost		Value
		(in thousands)
	Maturity
	Available for sale
	Within one year	$	15,002	$	15,102
	One to five years		7,466		7,802
	Five to ten years		26,775		26,765
	Beyond ten years		572		665
	Agency mortgage-backed: residential		104,912		106,956
	Total	$	154,727	$	157,290
	Held to maturity
	One to five years	$	10,840	$	11,377
	Five to ten years		27,867		29,641
	Beyond ten years		3,556		3,877
	Total	$	42,263	$	44,895
	Securities pledged at March 31, 2015 and December 31, 2014 had carrying values of approximately $62.1 million and $80.8 million, respectively, and were pledged to secure public deposits and repurchase agreements.
	At March 31, 2015 and December 31, 2014, we held securities issued by the Commonwealth of Kentucky or municipalities in the Commonwealth of Kentucky having a book value of $18.2 million and $19.1 million, respectively. Additionally, at March 31, 2015 and December 31, 2014, we held securities issued by the State of Texas or municipalities in the State of Texas having a book value of $4.4 million at each period end. At March 31, 2015 and December 31, 2014, there were no other holdings of securities of any one issuer, other than the U.S. Government and its agencies, in an amount greater than 10% of stockholders’ equity.
	Securities with unrealized losses at March 31, 2015 and December 31, 2014, aggregated by investment category and length of time the individual securities have been in a continuous unrealized loss position, are as follows:
		Less than 12 Months					12 Months or More						Total
	Description of Securities	Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
		Value		Loss			Value			Loss			Value		Loss
		(in thousands)
	March 31, 2015
	Available for sale
	U.S. Government and federal agency	$	2,576	$	(5	)	$	15,550		$	(278	)	$	18,126	$	(283	)
Agency mortgage-backed: residential		—		—			4,190			(92	)		4,190		(92	)
Corporate bonds		2,299		(145	)		1,750			(47	)		4,049		(192	)
Total temporarily impaired	$	4,875	$	(150	)	$	21,490		$	(417	)	$	26,365	$	(567	)
December 31, 2014
Available for sale
U.S. Government and federal agency	$	7,778	$	(60	)	$	18,681		$	(530	)	$	26,459	$	(590	)
Agency mortgage-backed: residential		6,960		(12	)		17,938			(345	)		24,898		(357	)
State and municipal		569		(8	)		—			—			569		(8	)
Corporate bonds		4,884		(119	)		1,660			(133	)		6,544		(252	)
Total temporarily impaired	$	20,191	$	(199	)	$	38,279		$	(1,008	)	$	58,470	$	(1,207	)
There were no held to maturity securities in an unrealized loss position at March 31, 2015 or December 31, 2014.
The Company evaluates securities for other than temporary impairment (OTTI) on a quarterly basis. Consideration is given to the length of time and the extent to which the fair value has been less than cost, the financial condition and near-term prospects of the issuer, underlying credit quality of the issuer, and the intent and ability of the Company to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value. In analyzing an issuer’s financial condition, the Company may consider whether the securities are issued by the federal government or its agencies, whether downgrades by bond rating agencies have occurred, the sector or industry trends and cycles affecting the issuer, and the results of reviews of the issuer’s financial condition. Management currently intends to hold all securities with unrealized losses until recovery, which for fixed income securities may be at maturity. As of March 31, 2015, management does not believe securities within our portfolio with unrealized losses should be classified as other than temporarily impaired.

Loans

Loans	3 Months Ended
	Mar. 31, 2015
Loans	Note 4 – Loans
	Loans were as follows:
		March 31,			December 31,
		2015			2014
		(in thousands)
	Commercial	$	76,954		$	60,936
	Commercial Real Estate:
	Construction		36,793			33,173
	Farmland		77,948			77,419
	Nonfarm nonresidential		159,276			175,452
	Residential Real Estate:
	Multi-family		43,150			41,891
	1-4 Family		197,583			197,278
	Consumer		10,831			11,347
	Agriculture		28,673			26,966
	Other		1,220			537
	Subtotal		632,428			624,999
	Less: Allowance for loan losses		(18,597	)		(19,364	)
	Loans, net	$	613,831		$	605,635
	The following table presents the activity in the allowance for loan losses by portfolio segment for the three months ended March 31, 2015 and 2014:
		Commercial			Commercial			Residential			Consumer			Agriculture			Other			Total
					Real Estate			Real Estate
		(in thousands)
	March 31, 2015:
	Beginning balance	$	2,046		$	10,931		$	5,787		$	274		$	319		$	7		$	19,364
	Provision for loan losses		269			7			(384	)		12			104			(8	)		—
	Loans charged off		(375	)		(369	)		(482	)		(68	)		(33	)		—			(1,327	)
	Recoveries		106			111			300			26			1			16			560
	Ending balance	$	2,046		$	10,680		$	5,221		$	244		$	391		$	15		$	18,597
	March 31, 2014:
	Beginning balance	$	3,221		$	16,414		$	7,762		$	416		$	305		$	6		$	28,124
	Provision for loan losses		445			(1,127	)		534			19			113			16			—
	Loans charged off		(146	)		(1,474	)		(1,308	)		(128	)		(9	)		(17	)		(3,082	)
	Recoveries		88			116			83			76			6			4			373
	Ending balance	$	3,608		$	13,929		$	7,071		$	383		$	415		$	9		$	25,415
	The following table presents the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and based on the impairment method as of March 31, 2015:
		Commercial			Commercial			Residential			Consumer			Agriculture			Other			Total
					Real Estate			Real Estate
		(in thousands)
	Allowance for loan losses:
	Ending allowance balance attributable to loans:
	Individually evaluated for impairment	$	2		$	51		$	200		$	1		$	—		$	—		$	254
	Collectively evaluated for impairment		2,044			10,629			5,021			243			391			15			18,343
	Total ending allowance balance	$	2,046		$	10,680		$	5,221		$	244		$	391		$	15		$	18,597
	Loans:
	Loans individually evaluated for impairment	$	1,677		$	32,731		$	20,504		$	32		$	232		$	123		$	55,299
	Loans collectively evaluated for impairment		75,277			241,286			220,229			10,799			28,441			1,097			577,129
	Total ending loans balance	$	76,954		$	274,017		$	240,733		$	10,831		$	28,673		$	1,220		$	632,428
	The following table presents the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and based on the impairment method as of December 31, 2014:
		Commercial			Commercial			Residential			Consumer			Agriculture			Other			Total
					Real Estate			Real Estate
		(in thousands)
	Allowance for loan losses:
	Ending allowance balance attributable to loans:
	Individually evaluated for impairment	$	33		$	491		$	227		$	1		$	—		$	—		$	752
	Collectively evaluated for impairment		2,013			10,440			5,560			273			319			7			18,612
	Total ending allowance balance	$	2,046		$	10,931		$	5,787		$	274		$	319		$	7		$	19,364
	Loans:
	Loans individually evaluated for impairment	$	2,022		$	48,141		$	21,384		$	61		$	263		$	122		$	71,993
	Loans collectively evaluated for impairment		58,914			237,903			217,785			11,286			26,703			415			553,006
	Total ending loans balance	$	60,936		$	286,044		$	239,169		$	11,347		$	26,966		$	537		$	624,999
	Impaired Loans
	Impaired loans include restructured loans and loans on nonaccrual or classified as doubtful, whereby collection of the total amount is improbable, or loss, whereby all or a portion of the loan has been written off or a specific allowance for loss has been provided.
	The following tables present information related to loans individually evaluated for impairment by class of loans as of March 31, 2015 and December 31, 2014 and for the three months ended March 31, 2015 and 2014:
	As of March 31, 2015									Three Months Ended March 31, 2015
	Unpaid			Recorded			Allowance			Average			Interest			Cash
	Principal			Investment			For Loan			Recorded			Income			Basis
	Balance						Losses			Investment			Recognized			Income
							Allocated									Recognized
	(in thousands)
With No Related Allowance Recorded:
Commercial	$	2,109		$	1,664		$	—		$	1,821		$	—		$	—
Commercial real estate:
Construction		4,514			3,938			—			4,019			4			1
Farmland		7,064			4,870			—			4,804			23			23
Nonfarm nonresidential		34,805			23,421			—			22,920			65			—
Residential real estate:
Multi-family		—			—			—			40			—			—
1-4 Family		16,813			14,570			—			14,918			134			47
Consumer		90			24			—			27			—			—
Agriculture		273			232			—			247			—			—
Other		368			123			—			123			2			2
Subtotal		66,036			48,842			—			48,919			228			73
With An Allowance Recorded:
Commercial		13			13			2			29			—			—
Commercial real estate:
Construction		—			—			—			—			—			—
Farmland		—			—			—			157			—			—
Nonfarm nonresidential		586			502			51			8,535			6			—
Residential real estate:
Multi-family		4,250			4,250			84			4,258			47			—
1-4 Family		1,684			1,684			116			1,727			25			—
Consumer		8			8			1			20			—			—
Agriculture		—			—			—			—			—			—
Other		—			—			—			—			—			—
Subtotal		6,541			6,457			254			14,726			78			—
Total	$	72,577		$	55,299		$	254		$	63,645		$	306		$	73
	As of December 31, 2014									Three Months Ended March 31, 2014
	Unpaid			Recorded			Allowance			Average			Interest			Cash
	Principal			Investment			For Loan			Recorded			Income			Basis
	Balance						Losses			Investment			Recognized			Income
							Allocated									Recognized
	(in thousands)
With No Related Allowance Recorded:
Commercial	$	2,546		$	1,978		$	—		$	2,679		$	1		$	1
Commercial real estate:
Construction		4,714			4,100			—			7,433			3			—
Farmland		6,636			4,739			—			7,322			17			17
Other		34,437			22,418			—			58,027			182			—
Residential real estate:
Multi-family		81			81			—			4,036			—			—
1-4 Family		18,496			15,266			—			29,053			286			169
Consumer		93			29			—			4			—			—
Agriculture		276			263			—			310			3			3
Other		367			122			—			408			7			7
Subtotal		67,646			48,996			—			109,272			499			197
With An Allowance Recorded:
Commercial		145			44			33			2,218			18			—
Commercial real estate:
Construction		—			—			—			1,117			6			—
Farmland		658			315			38			124			—			—
Other		19,454			16,569			453			16,564			109			—
Residential real estate:
Multi-family		4,266			4,266			91			4,659			37			—
1-4 Family		1,791			1,771			136			2,001			19			—
Consumer		32			32			1			65			1			—
Agriculture		—			—			—			—			—			—
Other		—			—			—			—			—			—
Subtotal		26,346			22,997			752			26,748			190			—
Total	$	93,992		$	71,993		$	752		$	136,020		$	689		$	197
Troubled Debt Restructuring
A troubled debt restructuring (TDR) occurs when the Company has agreed to a loan modification in the form of a concession for a borrower who is experiencing financial difficulty. The majority of the Company’s TDRs involve a reduction in interest rate, a deferral of principal for a stated period of time, or an interest only period. All TDRs are considered impaired and the Company has allocated reserves for these loans to reflect the present value of the concessionary terms granted to the borrower.
The following table presents the types of TDR loan modifications by portfolio segment outstanding as of March 31, 2015 and December 31, 2014:
	TDRs			TDRs Not			Total
	Performing to			Performing to			TDRs
	Modified			Modified
	Terms			Terms
	(in thousands)
March 31, 2015
Commercial
Rate reduction	$	13		$	69		$	82
Principal deferral		—			869			869
Commercial Real Estate:
Construction
Rate reduction		267			3,237			3,504
Farmland
Principal deferral		—			2,365			2,365
Nonfarm nonresidential
Rate reduction		5,543			12,462			18,005
Principal deferral		660			—			660
Residential Real Estate:
Multi-family
Rate reduction		4,250			—			4,250
1-4 Family
Rate reduction		8,057			—			8,057
Consumer
Rate reduction		8			—			8
Total TDRs	$	18,798		$	19,002		$	37,800
	TDRs			TDRs Not			Total
	Performing to			Performing to			TDRs
	Modified Terms			Modified Terms
	(in thousands)
December 31, 2014
Commercial
Rate reduction	$	14		$	—		$	14
Principal deferral		—			869			869
Commercial Real Estate:
Construction
Rate reduction		268			3,379			3,647
Farmland
Principal deferral		—			2,365			2,365
Other
Rate reduction		8,622			13,894			22,516
Principal deferral		671			—			671
Residential Real Estate:
Multi-family
Rate reduction		4,266			—			4,266
1-4 Family
Rate reduction		8,112			—			8,112
Consumer
Rate reduction		32			—			32
Total TDRs	$	21,985		$	20,507		$	42,492
At March 31, 2015 and December 31, 2014, 50% and 52%, respectively, of the Company’s TDRs were performing according to their modified terms. The Company allocated $253,000 and $579,000 in reserves to borrowers whose loan terms have been modified in TDRs as of March 31, 2015, and December 31, 2014, respectively. The Company has committed to lend no additional amounts to customers as of March 31, 2015 and December 31, 2014 to borrowers with outstanding loans classified as TDRs.
Management periodically reviews renewals/modifications of previously identified TDRs, for which there was no principal forgiveness, to consider if it is appropriate to remove the TDR classification. If the borrower is no longer experiencing financial difficulty and the renewal/modification did not contain a concessionary interest rate or other concessionary terms, management considers the potential removal of the TDR classification. If deemed appropriate, the TDR classification is removed as the borrower has complied with the terms of the loan at the date of renewal/modification and there was a reasonable expectation that the borrower would continue to comply with the terms of the loan subsequent to the date of the renewal/modification. In this instance, the TDR was originally considered a restructuring in a prior year as a result of a modification with an interest rate that was not commensurate with the risk of the underlying loan. Additionally, TDR classification can be removed in circumstances in which the Company performs a non-concessionary re-modification of the loan at terms that were considered to be at market for loans with comparable risk. Management expects the borrower will continue to perform under the re-modified terms based on the borrower’s past history of performance.
No TDR loan modifications occurred during the three months ended March 31, 2015 or March 31, 2014. During the first three months of 2015 and 2014, no TDRs defaulted on their restructured loan within the 12 month period following the loan modification. A default is considered to have occurred once the TDR is past due 90 days or more or it has been placed on nonaccrual.
Nonperforming Loans
Nonperforming loans include impaired loans not on accrual and smaller balance homogeneous loans, such as residential mortgage and consumer loans, that are collectively evaluated for impairment.
The following table presents the recorded investment in nonaccrual and loans past due 90 days and still on accrual by class of loan as of March 31, 2015, and December 31, 2014:
	Nonaccrual						Loans Past Due 90 Days
							And Over Still Accruing
	March 31,			December 31,			March 31,			December 31,
	2015			2014			2015			2014
	(in thousands)
Commercial	$	1,663		$	1,978		$	—		$	—
Commercial Real Estate:
Construction		3,671			3,831			—			—
Farmland		4,871			5,054			—			—
Nonfarm nonresidential		17,719			26,892			—			—
Residential Real Estate:
Multi-family		—			80			—			—
1-4 Family		8,197			8,925			—			151
Consumer		24			30			18			—
Agriculture		232			263			—			—
Other		123			122			—			—
Total	$	36,500		$	47,175		$	18		$	151
The following table presents the aging of the recorded investment in past due loans as of March 31, 2015 and December 31, 2014:
	30 – 59			60 – 89			90 Days			Nonaccrual			Total
	Days			Days			And Over						Past Due
	Past Due			Past Due			Past Due						And
													Nonaccrual
	(in thousands)
March 31, 2015
Commercial	$	465		$	4		$	—		$	1,663		$	2,132
Commercial Real Estate:
Construction		—			—			—			3,671			3,671
Farmland		343			230			—			4,871			5,444
Nonfarm nonresidential		356			221			—			17,719			18,296
Residential Real Estate:
Multi-family		—			42			—			—			42
1-4 Family		2,959			1,267			—			8,197			12,423
Consumer		156			5			18			24			203
Agriculture		91			—			—			232			323
Other		—			—			—			123			123
Total	$	4,370		$	1,769		$	18		$	36,500		$	42,657
	30 – 59			60 – 89			90 Days			Nonaccrual			Total
	Days			Days			And Over						Past Due
	Past Due			Past Due			Past Due						And
													Nonaccrual
	(in thousands)
December 31, 2014
Commercial	$	86		$	—		$	—		$	1,978		$	2,064
Commercial Real Estate:
Construction		—			—			—			3,831			3,831
Farmland		400			14			—			5,054			5,468
Nonfarm nonresidential		241			318			—			26,892			27,451
Residential Real Estate:
Multi-family		—			—			—			80			80
1-4 Family		3,124			601			151			8,925			12,801
Consumer		109			47			—			30			186
Agriculture		—			—			—			263			263
Other		—			—			—			122			122
Total	$	3,960		$	980		$	151		$	47,175		$	52,266
Credit Quality Indicators
We categorize all loans into risk categories at origination based upon original underwriting. Thereafter, we categorize loans into risk categories based on relevant information about the ability of borrowers to service their debt such as current financial information, historical payment experience, credit documentation, public information, and current economic trends. Additionally, loans are analyzed continuously through our internal and external loan review processes. Borrower relationships in excess of $500,000 are routinely analyzed through our credit administration processes which classify the loans as to credit risk. The following definitions are used for risk ratings:
Watch – Loans classified as watch are those loans which have experienced a potentially adverse development which necessitates increased monitoring.
Special Mention – Loans classified as special mention do not have all of the characteristics of substandard or doubtful loans. They have one or more deficiencies which warrant special attention and which corrective action, such as accelerated collection practices, may remedy.
Substandard – Loans classified as substandard are those loans with clear and defined weaknesses such as a highly leveraged position, unfavorable financial ratios, uncertain repayment sources or poor financial condition which may jeopardize the repayment of the debt as contractually agreed. They are characterized by the distinct possibility we will sustain some losses if the deficiencies are not corrected.
Doubtful – Loans classified as doubtful are those loans which have characteristics similar to substandard loans but with an increased risk that collection or liquidation in full is highly questionable and improbable.
Loans not meeting the criteria above that are analyzed individually as part of the above described process are considered to be “Pass” rated loans. As of March 31, 2015, and December 31, 2014, and based on the most recent analysis performed, the risk category of loans by class of loans is as follows:
	Pass			Watch			Special			Substandard			Doubtful			Total
							Mention
	(in thousands)
March 31, 2015
Commercial	$	67,239		$	4,422		$	—		$	5,293		$	—		$	76,954
Commercial Real Estate:
Construction		27,975			3,787			—			5,031			—			36,793
Farmland		63,761			6,834			—			7,353			—			77,948
Nonfarm nonresidential		107,808			26,755			797			23,916			—			159,276
Residential Real Estate:
Multi-family		34,093			5,090			—			3,967			—			43,150
1-4 Family		150,241			19,869			12			27,461			—			197,583
Consumer		9,805			370			301			355			—			10,831
Agriculture		18,526			9,749			—			398			—			28,673
Other		1,097			—			—			123			—			1,220
Total	$	480,545		$	76,876		$	1,110		$	73,897		$	—		$	632,428
	Pass			Watch			Special			Substandard			Doubtful			Total
							Mention
	(in thousands)
December 31, 2014
Commercial	$	49,440		$	5,063		$	—		$	6,433		$	—		$	60,936
Commercial Real Estate:
Construction		25,266			2,990			—			4,917			—			33,173
Farmland		61,672			7,922			—			7,825			—			77,419
Nonfarm nonresidential		111,426			21,017			3,747			39,262			—			175,452
Residential Real Estate:
Multi-family		31,526			6,039			—			4,326			—			41,891
1-4 Family		145,450			23,928			131			27,769			—			197,278
Consumer		10,115			537			311			384			—			11,347
Agriculture		25,816			704			—			446			—			26,966
Other		415			—			—			122			—			537
Total	$	461,126		$	68,200		$	4,189		$	91,484		$	—		$	624,999

Other_Real_Estate_Owned

Other Real Estate Owned	3 Months Ended
	Mar. 31, 2015
Other Real Estate Owned	Note 5 – Other Real Estate Owned
	Other real estate owned (OREO) is real estate acquired as a result of foreclosure or by deed in lieu of foreclosure. It is classified as real estate owned until such time as it is sold. When property is acquired as a result of foreclosure or by deed in lieu of foreclosure, it is recorded at its fair market value less cost to sell. Any write-down of the property at the time of acquisition is charged to the allowance for loan losses. Costs incurred in order to perfect the lien prior to foreclosure may be capitalized if the fair value less the cost to sell exceeds the balance of the loan at the time of transfer to OREO. Examples of eligible costs to be capitalized are payments of delinquent property taxes to clear tax liens or payments to contractors and subcontractors to clear mechanics’ liens. Subsequent reductions in fair value are recorded as non-interest expense.
	To determine the fair value of OREO for smaller dollar single family homes, we consult with internal real estate sales staff and external realtors, investors, and appraisers. If the internally evaluated market price is below our underlying investment in the property, appropriate write-downs are taken. For larger dollar residential and commercial real estate properties, we obtain a new appraisal of the subject property or have staff from our special assets group or in our centralized appraisal department evaluate the latest in-file appraisal in connection with the transfer to other real estate owned. We typically obtain updated appraisals within five quarters of the anniversary date of ownership unless a sale is imminent.
	The following table presents the major categories of OREO at the period-ends indicated:
		March 31,			December 31,
		2015			2014
		(in thousands)
	Commercial Real Estate:
	Construction, land development, and other land	$	18,319		$	18,748
	Farmland		256			669
	Nonfarm nonresidential		14,592			14,860
	Residential Real Estate:
	Multi-family		4,700			4,988
	1-4 Family		6,243			7,998
			44,110			47,263
	Valuation allowance		(492	)		(1,066	)
		$	43,618		$	46,197
		For the Three
		Months Ended
		March 31,
		2015			2014
		(in thousands)
	OREO Valuation Allowance Activity:
	Beginning balance	$	1,066		$	230
	Provision to allowance		300			250
	Write-downs		(874	)		(272	)
	Ending balance	$	492		$	208
	Residential loans secured by 1-4 family residential properties in the process of foreclosure totaled $2.6 million and $3.6 million at March 31, 2015 and December 31, 2014, respectively.
	Net activity relating to other real estate owned during the three months ended March 31, 2015 and 2014 is as follows:
		For the Three
		Months Ended
		March 31,
		2015			2014
		(in thousands)
	OREO Activity
	OREO as of January 1	$	46,197		$	30,892
	Real estate acquired		347			17,351
	Valuation adjustment writedowns		(300	)		(250	)
	Gain/(loss) on sale		3			—
	Proceeds from sale of properties		(2,629	)		(2,075	)
	OREO as of March 31	$	43,618		$	45,918
	Expenses related to other real estate owned include:
		For the Three Months
		Ended March 31,
		2015			2014
		(in thousands)
	Net (gain) loss on sales	$	(3	)	$	—
	Provision to allowance		300			250
	Operating expense		436			412
	Total	$	733		$	662

Deposits

Deposits	3 Months Ended
	Mar. 31, 2015
Deposits	Note 6 – Deposits
	The following table shows ending deposit balances by category as of:
		March 31,		December 31,
		2015		2014
		(in thousands)
	Non-interest bearing	$	108,011	$	114,910
	Interest checking		86,614		91,086
	Money market		102,349		109,734
	Savings		36,418		36,430
	Certificates of deposit		597,117		574,681
	Total	$	930,509	$	926,841
	Time deposits of $250,000 or more were $36.7 million and $34.4 million at March 31, 2015 and December 31, 2014, respectively.
	Scheduled maturities of all time deposits at March 31, 2015 were as follows (in thousands):
	Year 1	$	371,065
	Year 2		161,220
	Year 3		11,268
	Year 4		11,505
	Year 5		42,058
	Thereafter		1
		$	597,117

Advances_from_the_Federal_Home

Advances from the Federal Home Loan Bank	3 Months Ended
	Mar. 31, 2015
Advances from the Federal Home Loan Bank	Note 7 – Advances from the Federal Home Loan Bank
	Advances from the Federal Home Loan Bank were as follows:
		March 31,		December 31,
		2015		2014
		(in thousands)
	Monthly amortizing advances with fixed rates from 0.00% to 5.25% and maturities ranging from 2017 through 2033, averaging 2.85% at March 31, 2015 and 1.02% at December 31, 2014	$	3,597	$	15,752
	Each advance is payable based upon the terms on agreement, with a prepayment penalty. New advances are limited to a one year maturity or less. No prepayment penalties were incurred during 2015 or 2014. The advances are collateralized by first mortgage loans. The borrowing capacity is based on the market value of the underlying pledged loans. At March 31, 2015, our additional borrowing capacity with the FHLB was $23.4 million. The availability of our borrowing capacity could be affected by our financial condition and the FHLB could require additional collateral or, among other things, exercise its right to deny a funding request, at its discretion.

Fair_Values_Measurement

Fair Values Measurement	3 Months Ended
	Mar. 31, 2015
Fair Values Measurement	Note 8 – Fair Values Measurement
	Fair value is the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. We use various valuation techniques to determine fair value, including market, income and cost approaches. There are three levels of inputs that may be used to measure fair values:
	Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets an entity has the ability to access as of the measurement date, or observable inputs.
	Level 2: Significant other observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, and other inputs that are observable or can be corroborated by observable market data.
	Level 3: Significant unobservable inputs that reflect an entity’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.
	In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. When that occurs, we classify the fair value hierarchy on the lowest level of input that is significant to the fair value measurement. We used the following methods and significant assumptions to estimate fair value.
	Securities: The fair values of securities available for sale are determined by obtaining quoted prices on nationally recognized securities exchanges, if available. This valuation method is classified as Level 1 in the fair value hierarchy. For securities where quoted prices are not available, fair values are calculated on market prices of similar securities, or matrix pricing, which is a mathematical technique used widely in the industry to value debt securities without relying exclusively on quoted prices for the specific securities but rather by relying on the securities’ relationship to other benchmark quoted securities. Matrix pricing relies on the securities’ relationship to similarly traded securities, benchmark curves, and the benchmarking of like securities. Matrix pricing utilizes observable market inputs such as benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, reference data, and industry and economic events. In instances where broker quotes are used, these quotes are obtained from market makers or broker-dealers recognized to be market participants. This valuation method is classified as Level 2 in the fair value hierarchy. For securities where quoted prices or market prices of similar securities are not available, fair values are calculated using discounted cash flows or other market indicators. This valuation method is classified as Level 3 in the fair value hierarchy. Discounted cash flows are calculated using spread to swap and LIBOR curves that are updated to incorporate loss severities, volatility, credit spread and optionality. During times when trading is more liquid, broker quotes are used (if available) to validate the model. Rating agency and industry research reports as well as defaults and deferrals on individual securities are reviewed and incorporated into the calculations.
	Impaired Loans: An impaired loan is evaluated at the time the loan is identified as impaired and is recorded at fair value less costs to sell. Fair value is measured based on the value of the collateral securing the loan and is classified as Level 3 in the fair value hierarchy. Fair value is determined using several methods. Generally, the fair value of real estate is determined based on appraisals by qualified licensed appraisers. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach.
	Adjustments are routinely made in the appraisal process by the appraisers to adjust for differences between the comparable sales and income data available. These routine adjustments are made to adjust the value of a specific property relative to comparable properties for variations in qualities such as location, size, and income production capacity relative to the subject property of the appraisal. Such adjustments are typically significant and result in a Level 3 classification of the inputs for determining fair value.
	We routinely apply an internal discount to the value of appraisals used in the fair value evaluation of our impaired loans. The deductions to the appraisal take into account changing business factors and market conditions, as well as potential value impairment in cases where our appraisal date predates a likely change in market conditions. These deductions range from 10% for routine real estate collateral to 25% for real estate that is determined (1) to have a thin trading market or (2) to be specialized collateral. This is in addition to estimated discounts for cost to sell of six to ten percent.
	We also apply discounts to the expected fair value of collateral for impaired loans where the likely resolution involves litigation or foreclosure. Resolution of this nature generally results in receiving lower values for real estate collateral in a more aggressive sales environment. We have utilized discounts ranging from 10% to 33% in our impairment evaluations when applicable.
	Impaired loans are evaluated quarterly for additional impairment. We obtain updated appraisals on properties securing our loans when circumstances are warranted such as at the time of renewal or when market conditions have significantly changed. This determination is made on a property-by-property basis in light of circumstances in the broader economic climate and our assessment of deterioration of real estate values in the market in which the property is located. The first stage of our assessment involves management’s inspection of the property in question. Management also engages in conversations with local real estate professionals, investors, and market participants to determine the likely marketing time and value range for the property. The second stage involves an assessment of current trends in the regional market. After thorough consideration of these factors, management will either internally evaluate fair value or order a new appraisal.
	Other Real Estate Owned (OREO): OREO is evaluated at the time of acquisition and recorded at fair value as determined by independent appraisal or internal evaluation less cost to sell. Our quarterly evaluations of OREO for impairment are driven by property type. For smaller dollar single family homes, we consult with internal real estate sales staff and external realtors, investors, and appraisers. Based on these consultations, we determine asking prices for OREO properties we are marketing for sale. If the internally evaluated fair value is below our recorded investment in the property, appropriate write-downs are taken.
	For larger dollar commercial real estate properties, we obtain a new appraisal of the subject property or have staff in our special assets group or centralized appraisal department evaluate the latest in-file appraisal in connection with the transfer to other real estate owned. In some of these circumstances, an appraisal is in process at quarter end, and we must make our best estimate of the fair value of the underlying collateral based on our internal evaluation of the property, review of the most recent appraisal, and discussions with the currently engaged appraiser. We generally obtain updated appraisals within five quarters of the anniversary date of ownership unless a sale is imminent.
	We routinely apply an internal discount to the value of appraisals used in the fair value evaluation of our OREO. The deductions to the appraisal take into account changing business factors and market conditions, as well as potential value impairment in cases where our appraisal date predates a likely change in market conditions. These deductions range from 10% for routine real estate collateral to 25% for real estate that is determined (1) to have a thin trading market or (2) to be specialized collateral. This is in addition to estimated discounts for cost to sell of six to ten percent.
	Financial assets measured at fair value on a recurring basis at March 31, 2015 and December 31, 2014 are summarized below:
				Fair Value Measurements at March 31, 2015 Using
				(in thousands)
	Description	Carrying		Quoted Prices In			Significant Other		Significant
		Value		Active Markets for			Observable Inputs		Unobservable
				Identical Assets			(Level 2)		Inputs
				(Level 1)					(Level 3)
	Available for sale securities
	U.S. Government and federal agency	$	30,025	$	—		$	30,025	$	—
	Agency mortgage-backed: residential		106,956		—			106,956		—
	State and municipal		7,526		—			7,526		—
	Corporate bonds		12,118		—			12,118		—
	Other debt securities		665		—			—		665
	Total	$	157,290	$	—		$	156,625	$	665
				Fair Value Measurements at December 31, 2014 Using
				(in thousands)
	Description	Carrying		Quoted Prices In			Significant Other		Significant
		Value		Active Markets for			Observable Inputs		Unobservable
				Identical Assets			(Level 2)		Inputs
				(Level 1)					(Level 3)
	Available for sale securities
	U.S. Government and federal agency	$	35,443	$	—		$	35,443	$	—
	Agency mortgage-backed: residential		123,598		—			123,598		—
	State and municipal		12,404		—			12,404		—
	Corporate bonds		18,688		—			18,688		—
	Other debt securities		658		—			—		658
	Total	$	190,791	$	—		$	190,133	$	658
	There were no transfers between Level 1 and Level 2 during 2015 or 2014.
	The table below presents a reconciliation of all assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the periods ended March 31, 2015 and 2014:
		Other Debt
		Securities
		2015		2014
		(in thousands)
	Balances of recurring Level 3 assets at January 1	$	658	$	632
	Total gain (loss) for the period:
	Included in other comprehensive income (loss)		7		12
	Balance of recurring Level 3 assets at March 31	$	665	$	644
	Our other debt security valuation is determined internally by calculating discounted cash flows using the security’s coupon rate of 6.5% and an estimated current market rate of 8.0% based upon the current yield curve plus spreads that adjust for volatility, credit risk, and optionality. We also consider the issuer’s publicly filed financial information as well as assumptions regarding the likelihood of deferrals and defaults.
	Financial assets measured at fair value on a non-recurring basis are summarized below:
				Fair Value Measurements at March 31, 2015 Using
				(in thousands)
	Description	Carrying		Quoted Prices In			Significant Other		Significant
		Value		Active Markets for			Observable Inputs		Unobservable
				Identical Assets			(Level 2)		Inputs
				(Level 1)					(Level 3)
	Impaired loans:
	Commercial	$	11	$	—		$	—	$	11
	Commercial real estate:
	Construction		—		—			—		—
Farmland		—		—			—		—
Nonfarm nonresidential		162		—			—		162
Residential real estate:
Multi-family		—		—			—		—
1-4 Family		1,568		—			—		1,568
Consumer		8		—			—		8
Other		—		—			—		—
Other real estate owned, net:
Commercial real estate:
Construction		18,114		—			—		18,114
Farmland		253		—			—		253
Nonfarm nonresidential		14,429		—			—		14,429
Residential real estate:
Multi-family		4,648		—			—		4,648
1-4 Family		6,174		—			—		6,174
			Fair Value Measurements at December 31, 2014 Using
			(in thousands)
Description	Carrying		Quoted Prices In			Significant Other		Significant
	Value		Active Markets for			Observable Inputs		Unobservable
			Identical Assets			(Level 2)		Inputs
			(Level 1)					(Level 3)
Impaired loans:
Commercial	$	12	$	—		$	—	$	12
Commercial real estate:
Construction		—		—			—		—
Farmland		278		—			—		278
Other		15,825		—			—		15,825
Residential real estate:
Multi-family		—		—			—		—
1-4 Family		1,635		—			—		1,635
Consumer		31		—			—		31
Other		—		—			—		—
Other real estate owned, net:
Commercial real estate:
Construction		18,325		—			—		18,325
Farmland		654		—			—		654
Other		14,525		—			—		14,525
Residential real estate:
Multi-family		4,875		—			—		4,875
1-4 Family		7,818		—			—		7,818
Impaired loans, which are measured for impairment using the fair value of the collateral for collateral dependent loans, had a carrying amount of $1.9 million at March 31, 2015 with a valuation allowance of $254,000, resulting in no additional provision for loan losses for the three months ended March 31, 2015. Impaired loans had a carrying amount of $15.6 million with a valuation allowance of $2.5 million, and no additional provision for the three months ended March 31, 2014. At December 31, 2014, impaired loans had a carrying amount of $18.4 million, with a valuation allowance of $752,000.
OREO, which is measured at the lower of carrying or fair value less estimated costs to sell, had a net carrying amount of $43.6 million as of March 31, 2015, compared with $45.9 million at March 31, 2014 and $46.2 million at December 31, 2014. Fair value write-downs of $300,000 and $250,000 were recorded on OREO for the three months ended March 31, 2015 and 2014, respectively.
The following table presents qualitative information about level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis at March 31, 2015:
	Fair Value		Valuation		Unobservable Input(s)	Range (Weighted
			Technique(s)			Average)
	(in thousands)
Impaired loans – Commercial	$	11	Market value approach		Adjustment for receivables and inventory discounts	16% - 32% (24%)
Impaired loans – Commercial real estate	$	162	Sales comparison approach		Adjustment for differences between the comparable sales	0% - 62% (16%)
			Income approach		Discount or capitalization rate	8% - 9% (8%)
Impaired loans – Residential real estate	$	1,568	Sales comparison approach		Adjustment for differences between the comparable sales	0% - 39% (11%)
Other real estate owned – Commercial real estate	$	32,796	Sales comparison approach		Adjustment for differences between the comparable sales	0% - 45% (18%)
			Income approach		Discount or capitalization rate	8% - 20% (13%)
Other real estate owned – Residential real estate	$	10,822	Sales comparison approach		Adjustment for differences between the comparable sales	0% - 10% (5%)
The following table presents qualitative information about level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis at December 31, 2014:
	Fair Value		Valuation		Unobservable Input(s)	Range (Weighted
			Technique(s)			Average)
	(in thousands)
Impaired loans – Commercial	$	12	Market value approach		Adjustment for receivables and inventory discounts	16% -32% (24%)
Impaired loans – Commercial real estate	$	16,103	Sales comparison approach		Adjustment for differences between the comparable sales	0% - 62% (14%)
			Income approach		Discount or capitalization rate	8% - 9% (8%)
Impaired loans – Residential real estate	$	1,635	Sales comparison approach		Adjustment for differences between the comparable sales	0% - 39% (11%)
Other real estate owned – Commercial real estate	$	33,504	Sales comparison approach		Adjustment for differences between the comparable sales	0% - 45% (18%)
			Income approach		Discount or capitalization rate	9% - 20% (13%)
Other real estate owned – Residential real estate	$	12,693	Sales comparison approach		Adjustment for differences between the comparable sales	0% - 15% (6%)
Carrying amount and estimated fair values of financial instruments were as follows for the periods indicated:
			Fair Value Measurements at March 31, 2015
			Using
	Carrying		Level 1			Level 2		Level 3		Total
	Amount
	(in thousands)
Financial assets
Cash and cash equivalents	$	109,771	$	96,168		$	13,603	$	—	$	109,771
Securities available for sale		157,290		—			156,625		665		157,290
Securities held to maturity		42,263		—			44,895		—		44,895
Federal Home Loan Bank stock		7,323		N/A			N/A		N/A		N/A
Loans held for sale		—		—			—		—		—
Loans, net		613,831		—			—		622,241		622,241
Accrued interest receivable		3,036		—			1,072		1,964		3,036
Financial liabilities
Deposits	$	930,509	$	108,011		$	817,396	$	—	$	925,407
Securities sold under agreements to repurchase		1,145		—			1,145		—		1,145
Federal Home Loan Bank advances		3,597		—			3,604		—		3,604
Subordinated capital notes		4,725		—			—		4,558		4,558
Junior subordinated debentures		25,000		—			—		14,433		14,433
Accrued interest payable		2,864		—			606		2,258		2,864
			Fair Value Measurements at December 31, 2014 Using
	Carrying		Level 1			Level 2		Level 3		Total
	Amount
	(in thousands)
Financial assets
Cash and cash equivalents	$	80,180	$	49,007		$	31,173	$	—	$	80,180
Securities available for sale		190,791		—			190,133		658		190,791
Securities held to maturity		42,325		—			44,498		—		44,498
Federal Home Loan Bank stock		7,323		N/A			N/A		N/A		N/A
Loans held for sale		8,926		—			8,926		—		8,926
Loans, net		605,635		—			—		615,914		615,914
Accrued interest receivable		3,503		—			1,389		2,114		3,503
Financial liabilities
Deposits	$	926,841	$	114,910		$	804,508	$	—	$	919,418
Securities sold under agreements to repurchase		1,341		—			1,341		—		1,341
Federal Home Loan Bank advances		15,752		—			15,758		—		15,758
Subordinated capital notes		4,950		—			—		4,765		4,765
Junior subordinated debentures		25,000		—			—		14,214		14,214
Accrued interest payable		2,858		—			751		2,107		2,858
The methods and assumptions, not previously presented, used to estimate fair values are described as follows:
(a) Cash and Cash Equivalents
The carrying amounts of cash and short-term instruments approximate fair values and are classified as either Level 1 or Level 2. Non-interest bearing deposits are Level 1 whereas interest bearing due from bank accounts and fed funds sold are Level 2.
(b) FHLB Stock
It is not practical to determine the fair value of FHLB stock due to restrictions placed on its transferability.
(c) Loans, Net
Fair values of loans, excluding loans held for sale, are estimated as follows: For variable rate loans that reprice frequently and with no significant change in credit risk, fair values are based on carrying values resulting in a Level 3 classification. Fair values for other loans are estimated using discounted cash flow analyses, using interest rates currently being offered for loans with similar terms to borrowers of similar credit quality resulting in a Level 3 classification. Impaired loans are valued at the lower of cost or fair value as described previously. The methods utilized to estimate the fair value of loans do not necessarily represent an exit price.
(d) Loans Held for Sale
The fair value of loans held for sale is estimated based upon binding contracts and and/or quotes from third party investors resulting in a Level 2 classification.
(e) Deposits
The fair values disclosed for non-interest bearing deposits are, by definition, equal to the amount payable on demand at the reporting date resulting in a Level 1 classification. The carrying amounts of variable rate interest bearing deposits approximate their fair values at the reporting date resulting in a Level 2 classification. Fair values for fixed rate interest bearing deposits are estimated using a discounted cash flows calculation that applies interest rates currently being offered on certificates to a schedule of aggregated expected monthly maturities on time deposits resulting in a Level 2 classification.
(f) Securities Sold Under Agreements to Repurchase
The carrying amounts of borrowings under repurchase agreements approximate their fair values resulting in a Level 2 classification.
(g) Other Borrowings
The fair values of the Company’s FHLB advances are estimated using discounted cash flow analyses based on the current borrowing rates resulting in a Level 2 classification.
The fair values of the Company’s subordinated capital notes and junior subordinated debentures are estimated using discounted cash flow analyses based on the current borrowing rates for similar types of borrowing arrangements resulting in a Level 3 classification.
(h) Accrued Interest Receivable/Payable
The carrying amounts of accrued interest approximate fair value resulting in a Level 2 or Level 3 classification based on the level of the asset or liability with which the accrual is associated.

Income_Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2015
Income Taxes	Note 9 – Income Taxes
	Deferred tax assets and liabilities were due to the following as of:
		March 31,			December 31,
		2015			2014
		(in thousands)
	Deferred tax assets:
	Net operating loss carry-forward	$	32,067		$	32,111
	Allowance for loan losses		6,509			6,777
	Other real estate owned write-down		9,899			10,000
	Alternative minimum tax credit carry-forward		692			692
	Net assets from acquisitions		670			668
	Other than temporary impairment on securities		46			46
	New market tax credit carry-forward		208			208
	Nonaccrual loan interest		847			958
	Amortization of non-compete agreements		13			14
	Other		1,873			1,371
			52,824			52,845
	Deferred tax liabilities:
	FHLB stock dividends		928			928
	Fixed assets		248			264
	Originated mortgage servicing rights		48			53
	Net unrealized gain on securities		530			579
	Other		668			373
			2,422			2,197
	Net deferred tax assets before valuation allowance		50,402			50,648
	Valuation allowance		(50,402	)		(50,648	)
	Net deferred tax asset	$	—		$	—
	Our estimate of the realizability of the deferred tax asset is dependent on our estimate of projected future levels of taxable income. In analyzing future taxable income levels, we considered all evidence currently available, both positive and negative. Based on our analysis, we established a valuation allowance for all deferred tax assets as of December 31, 2011. The valuation allowance remains in effect as of March 31, 2015.
	The calculation for the income tax provision or benefit generally does not consider the tax effects of changes in other comprehensive income, or OCI, which is a component of stockholders’ equity on the balance sheet. However, an exception is provided in certain circumstances, such as when there is a full valuation allowance against net deferred tax assets, there is a loss from continuing operations and there is income in other components of the financial statements. In such a case, pre-tax income from other categories, such as changes in OCI, must be considered in determining a tax benefit to be allocated to the loss from continuing operations. For the year ended December 31, 2014, this resulted in $1.6 million of income tax benefit allocated to continuing operations. The December 31, 2014 tax benefit is entirely due to gains in other comprehensive income that are presented in current operations in accordance with applicable accounting standards. No tax benefit or expense was recognized for the three months ended March 31, 2015 or the three months ended March 31, 2014.
	The Company does not have any beginning and ending unrecognized tax benefits. The Company does not expect the total amount of unrecognized tax benefits to significantly increase or decrease in the next twelve months. There were no interest and penalties recorded in the income statement or accrued for the three months ended March 31, 2015 or March 31, 2014 related to unrecognized tax benefits.
	The Company and its subsidiaries are subject to U.S. federal income tax and the Company is subject to income tax in the Commonwealth of Kentucky. The Company is no longer subject to examination by taxing authorities for years before 2011.

Stock_Plans_and_Stock_Based_Co

Stock Plans and Stock Based Compensation	3 Months Ended
	Mar. 31, 2015
Stock Plans and Stock Based Compensation	Note 10 – Stock Plans and Stock Based Compensation
	The Company has two stock incentive plans. The Porter Bancorp, Inc. 2006 Stock Incentive Plan permits the issuance of up to 1,563,050 shares of the Company’s common stock upon the grant of stock awards. As of March 31, 2015, the Company had issued and outstanding 1,056,243 unvested shares net of forfeitures and vesting under the stock incentive plan. Shares issued under the plan vest annually on the anniversary date of the grant over three to ten years. The Company has 271,890 shares remaining available for issue under the plan.
	The Porter Bancorp, Inc. 2006 Non-Employee Directors Stock Ownership Incentive Plan permits the issuance of up to 700,000 shares of the Company’s voting common stock upon the grant of stock awards. The Plan awards restricted shares having a fair market value of $25,000 annually to each non-employee director. Unvested shares are granted automatically under the plan at fair market value on the date of grant and vest on December 31 in the year of grant. To date, the Company has issued and outstanding 5,052 unvested shares, net of forfeitures and vesting, to non-employee directors. At March 31, 2015, 301,512 shares remain available for issuance under this plan.
	Upon the sale of our Series A preferred shares by the U.S. Treasury at a discount to face amount on December 4, 2014, restricted shares previously granted to senior executives became subject to permanent transfer restrictions. On March 25, 2015, the Compensation Committee modified the equity compensation arrangements with our four named executive officers to restore the incentive that was intended by including equity grants in their employment agreements. The Compensation Committee and the named executive officers mutually agreed to terminate 538,479 restricted shares that were subject to permanent restrictions on transfer. We then awarded 800,000 new service-based restricted shares to our named executive officers. The new awards are accounted for as a modification and vest over four years, with one-third of the shares vesting on each of the second, third and fourth anniversaries of the date of grant. The modification results in incremental compensation expense of approximately $233,000 and will be amortized in accordance with the vesting schedule.
	The fair value of the 2015 unvested shares issued to employees was $712,000, or $0.89 per weighted-average share. The Company recorded $49,000 and $133,000 of stock-based compensation during the first three months of 2015 and 2014, respectively, to salaries and employee benefits. We expect substantially all of the unvested shares outstanding at the end of the period will vest according to the vesting schedule. No deferred tax benefit was recognized related to this expense for either period.
	The following table summarizes unvested share activity as of and for the periods indicated for the Stock Incentive Plan:
		Three Months Ended					Twelve Months Ended
		March 31, 2015					December 31, 2014
		Shares			Weighted		Shares			Weighted
					Average					Average
					Grant					Grant
					Price					Price
	Outstanding, beginning		770,440		$	1.33		787,426		$	1.56
	Granted		800,000			0.89		122,220			0.93
	Vested		(63,063	)		2		(133,227	)		2.2
	Terminated		(450,994	)		1.25		—			—
	Forfeited		(140	)		22.03		(5,979	)		4.21
	Outstanding, ending		1,056,243		$	0.99		770,440		$	1.33
	The following table summarizes unvested share activity as of and for the periods indicated for the Non-Employee Directors Stock Ownership Incentive Plan:
		Three Months Ended					Twelve Months Ended
		March 31, 2015					December 31, 2014
		Shares			Weighted		Shares			Weighted
					Average					Average
					Grant					Grant
					Price					Price
	Outstanding, beginning		5,052		$	1.65		47,428		$	1.69
	Granted		—			—		166,668			0.9
	Vested		—			—		(154,222	)		0.98
	Forfeited		—			—		(54,822	)		1.29
	Outstanding, ending		5,052		$	1.65		5,052		$	1.65
	Unrecognized stock based compensation expense related to unvested shares for the remainder of 2015 and beyond is estimated as follows (in thousands):
	April 2015 – December 2015	$	282
	2016		263
	2017		158
	2018		149
	2019 & thereafter		—

Earnings_Loss_per_Share

Earnings (Loss) per Share	3 Months Ended
	Mar. 31, 2015
Earnings (Loss) per Share	Note 11 – Earnings (Loss) per Share
	The factors used in the basic and diluted earnings per share computations follow:
		Three Months Ended
		March 31,
		2015		2014
		(in thousands, except share and
		per share data)
	Net income (loss)	$	594	$	(287	)
	Less:
	Preferred stock dividends		—		786
	Earnings (loss) allocated to unvested shares		21		(70	)
	Earnings (loss) attributable to participating preferred shares		164		(27	)
	Net income (loss) attributable to common shareholders, basic and diluted	$	409	$	(976	)
	Basic
	Weighted average common shares including unvested common shares outstanding		25,419,523		13,210,930
	Less:
	Weighted average unvested common shares		918,393		856,723
	Weighted average Series B preferred shares		2,702,400		—
	Weighted average Series C preferred shares		—		332,894
	Weighted average Series D preferred shares		4,305,333		—
	Weighted average common shares outstanding		17,493,397		12,021,313
	Basic income (loss) per common share	$	0.02	$	(0.08	)
	Diluted
	Add: Dilutive effects of assumed exercises of common stock warrants		—		—
	Weighted average common shares and potential common shares		17,493,397		12,021,313
	Diluted loss per common share	$	0.02	$	(0.08	)
	The Company had no outstanding stock options at March 31, 2015 or 2014. A warrant for the purchase of 330,561 shares of the Company’s common stock at an exercise price of $15.88 was outstanding at March 31, 2015 and 2014 but was not included in the diluted EPS computation as inclusion would have been anti-dilutive. Additionally, warrants for the purchase of 650,544 and 1,449,459 shares of non-voting common stock at an exercise price of $10.95 per share were outstanding at March 31, 2015 and 2014, respectively, but were not included in the diluted EPS computation as inclusion would have been anti-dilutive.

Capital_Requirements_and_Restr

Capital Requirements and Restrictions on Retained Earnings	3 Months Ended
	Mar. 31, 2015
Capital Requirements and Restrictions on Retained Earnings	Note 12 – Capital Requirements and Restrictions on Retained Earnings
	Banks and bank holding companies are subject to regulatory capital requirements administered by federal banking agencies. Capital adequacy guidelines and, additionally for banks, prompt corrective action regulations involve quantitative measures of assets, liabilities, and certain off-balance-sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators. Failure to meet capital requirements can initiate regulatory action.
	The Basel III regulatory capital reforms became effective for the Company and Bank on January 1, 2015, and include new minimum risk-based capital and leverage ratios. These rules refine the definition of what constitutes “capital” for purposes of calculating those ratios, including the definitions of Tier 1 capital and Tier 2 capital. The final rules allow banks and their holding companies with less than $250 billion in assets a one-time opportunity to opt-out of a requirement to include unrealized gains and losses in accumulated other comprehensive income in their capital calculation. The Company and the Bank opted out of this requirement.
	On June 24, 2011, the Bank entered into a Consent Order with the FDIC and the Kentucky Department of Financial Institutions. The consent order required the Bank to complete a management study, to maintain Tier 1 capital as a percentage of total assets of at least 9% and a total risk based capital ratio of at least 12%, to develop a plan to reduce our risk position in each substandard asset in excess of $1 million, to complete board review of the adequacy of the allowance for loan losses prior to quarterly Call Report submissions, to adopt procedures which strengthen the loan review function and ensure timely and accurate grading of credit relationships, to charge-off all assets classified as loss, to develop a plan to reduce concentrations of construction and development loans to not more than 75% of total risk based capital and non-owner occupied commercial real estate loans to not more than 250% of total risk based capital, to limit asset growth to no more than 5% in any quarter or 10% annually, not to extend additional credit to any borrower classified substandard unless the board of directors first adopts a detailed statement why the extension is in the best interest of the bank, and not to declare or pay any dividend without the prior consent of our regulators. We are also restricted from accepting, renewing, or rolling-over brokered deposits without the prior receipt of a waiver on a case-by-case basis from our regulators.
	On September 21, 2011, we entered into a Written Agreement with the Federal Reserve Bank of St. Louis in which we made formal commitments to use our financial and management resources to serve as a source of strength for the Bank and to assist the Bank in addressing weaknesses identified by the FDIC and the KDFI, to pay no dividends without prior written approval, to pay no interest or principal on subordinated debentures or trust preferred securities without prior written approval, and to submit an acceptable plan to maintain sufficient capital.
	In October 2012, the Bank entered into a revised Consent Order with the FDIC and KDFI again agreeing to maintain a minimum Tier 1 leverage ratio of 9% and a minimum total risk based capital ratio of 12%. The Bank cannot be considered well-capitalized while under the Consent Order. The Bank also agreed that if it should be unable to reach the required capital levels, and if directed in writing by the FDIC, then the Bank would within 30 days develop, adopt and implement a written plan to sell or merge itself into another federally insured financial institution or otherwise immediately obtain a capital investment into the Bank sufficient to fully meet the capital requirements. We have not been directed by the FDIC to implement such a plan.
	The revised Consent Order also requires the Bank to continue to adhere to the plans implemented in response to the June 2011 Consent Order, and includes the substantive provisions of the June 2011 Consent Order. As of March 31, 2015, the capital ratios required by the Consent Order were not met.
	The following table shows the ratios and amounts of Common Equity Tier 1, Tier 1 capital and total capital to risk-adjusted assets and the leverage ratios for Porter Bancorp, Inc. and the Bank at the dates indicated (dollars in thousands):
		Actual					For Capital Adequacy Purposes
		Amount		Ratio			Amount		Ratio
	As of March 31, 2015:
	Total risk-based capital (to risk-weighted assets)
	Consolidated	$	70,949		10.05	%	$	56,459		8	%
	Bank		72,335		10.25			56,435		8
	Total common equity Tier I risk-based capital (to risk-weighted assets)
	Consolidated		33,232		4.71			31,758		4.5
	Bank		58,672		8.32			31,745		4.5
	Tier I capital (to risk-weighted assets)
	Consolidated		41,513		5.88			42,344		6
	Bank		58,672		8.32			42,326		6
	Tier I capital (to average assets)
	Consolidated		41,513		4.13			40,209		4
	Bank		58,672		5.84			40,212		4
		Actual					For Capital Adequacy Purposes
		Amount		Ratio			Amount		Ratio
	As of December 31, 2014:
	Total risk-based capital (to risk-weighted assets)
	Consolidated	$	73,595		10.61	%	$	55,483		8	%
	Bank		73,174		10.57			55,383		8
	Tier I capital (to risk-weighted assets)
	Consolidated		46,459		6.7			27,741		4
	Bank		59,438		8.59			27,691		4
	Tier I capital (to average assets)
	Consolidated		46,459		4.51			41,193		4
	Bank		59,438		5.78			41,143		4
	The Consent Order requires the Bank to achieve the minimum capital ratios presented below:
		Actual as of March 31, 2015					Ratio Required by Consent Order
		Amount		Ratio			Amount		Ratio
	Total capital to risk-weighted assets	$	72,335		10.25	%	$	84,652		12	%
	Tier I capital to average assets		58,672		5.84			90,476		9
	At March 31, 2015, the Bank’s Tier 1 leverage ratio was 5.84%, and its total risk-based capital ratio was 10.25%, which are below the 9% and 12% minimum capital ratios required by the Consent Order. Bank regulatory agencies can exercise discretion when an institution does not meet the terms of a Consent Order. Based on individual circumstances, the agencies may issue mandatory directives, impose monetary penalties, initiate changes in management, or take more serious adverse actions.
	Kentucky banking laws limit the amount of dividends that may be paid to a holding company by its subsidiary banks without prior approval. These laws limit the amount of dividends that may be paid in any calendar year to current year’s net income, as defined in the laws, combined with the retained net income of the preceding two years, less any dividends declared during those periods. PBI Bank has agreed with its primary regulators to obtain their written consent prior to declaring or paying any future dividends. As a practical matter, PBI Bank cannot pay dividends to Porter Bancorp for the foreseeable future.

Contingencies

Contingencies	3 Months Ended
	Mar. 31, 2015
Contingencies	Note 13 – Contingencies
	We are defendants in various legal proceedings. Litigation is subject to inherent uncertainties and unfavorable rulings could occur. We record contingent liabilities resulting from claims against us when a loss is assessed to be probable and the amount of the loss is reasonably estimable. Assessing probability of loss and estimating probable losses requires analysis of multiple factors, including in some cases judgments about the potential actions of third party claimants and courts. Recorded contingent liabilities are based on the best information available and actual losses in any future period are inherently uncertain. Currently, we have accrued approximately $2.2 million related to ongoing litigation matters for which we believe liability is probable and reasonably estimable. Accruals are not made in cases where liability is not probable or the amount cannot be reasonably estimated. We disclose legal matters when we believe liability is reasonably possible and may be material to our consolidated financial statements.
	Signature Point Litigation. On June 18, 2010, three real estate development companies filed suit in Kentucky state court against the Bank and Managed Assets of Kentucky (“MAKY”). Signature Point Condominiums LLC, et al. v. PBI Bank, et al., Jefferson Circuit Court, Case No 10-CI-04295. On July 16, 2013, a jury in Louisville, Kentucky returned a verdict against the Bank, awarding the plaintiffs compensatory damages of $1,515,000 and punitive damages of $5,500,000. The case arose from a settlement in which the Bank agreed to release the plaintiffs and guarantors from obligations of more than $26 million related to a real estate project in Louisville. The plaintiffs were granted a right of first refusal to repurchase a tract of land within the project. In exchange, the plaintiffs conveyed the real estate securing the loans to the Bank. After plaintiffs declined to exercise their right of first refusal, the Bank sold the tract to the third party. Plaintiffs alleged the Bank had knowledge of the third party offer before the conveyance of the land by the Plaintiffs to the Bank. Plaintiffs asserted claims of fraud, breach of fiduciary duty, breach of the duty of good faith and fair dealing, tortious interference with prospective business advantage and conspiracy to commit fraud, negligence, and conspiracy against the Bank.
	After conferring with its legal advisors, the Bank believes the findings and damages are excessive and contrary to law, and that it has meritorious grounds on which it has moved to appeal. The Bank’s Notice of Appeal was filed on October 25, 2013. After a number of procedural issues were resolved, the Bank filed its appellate brief on September 30, 2014. Appellee’s brief was filed on December 1, 2014. We will continue to defend this matter vigorously. Although we have made provisions in our consolidated financial statements for this self-insured matter, the amount of our legal accrual is less than the original amount of the damages awarded, plus accrued interest. The ultimate outcome of this matter could have a material adverse effect on our financial condition, results of operations or cash flows.
	SBAV LP Litigation. On December 17, 2012, SBAV LP filed a lawsuit against the Company, the Bank, J. Chester Porter and Maria L. Bouvette in New York state court. The proceeding was removed to New York federal district court on January 16, 2013, and on February 27, 2013, SBAV LP filed an Amended Complaint. On July 10, 2013, the New York federal district court granted the defendants’ motion to transfer the case to federal district court in Kentucky. SBAV LP v. Porter Bancorp, et. al., Civ. Action 3:13-CV-710 (W.D.KY). The Amended Complaint alleges a violation of the Kentucky Securities Act and negligent misrepresentation against all named defendants, and breach of contract against Porter Bancorp alone. The plaintiff seeks damages in an amount in excess of $4,500,000, or the difference between the $5,000,016 purchase price and the value of the securities when sold by the plaintiff, plus interest at the applicable statutory rate, costs and reasonable attorneys’ fees. On September 13, 2013, defendants filed a motion to dismiss all claims in the complaint for pleading failures and for failure to state a claim upon which relief may be granted. On March 25, 2014, the judge ruled that SBAV had failed to state a claim against the Bank and dismissed the Bank from the case. The claims against the Company, the Estate of J. Chester Porter and Ms. Bouvette remain and have proceeded to discovery. On April 21, 2014, the Company filed a third-party complaint for contribution against SBAV’s investment adviser, the Clinton Group, Inc. On September 16, 2014, the Court dismissed the Third-Party Complaint, but held that, if proven, Clinton’s errors in conducting due diligence may lessen any recovery available to SBAV. Discovery is continuing. At the joint request of the parties, the Court vacated the previous schedule and trial date of October 20, 2015 in order to provide additional time for discovery and motion practice in the case. We dispute the material factual allegations made in SBAV’s complaint and intend to defend against SBAV’s claims vigorously.
	Miller’s Health System Inc. Employee Stock Ownership Plan. On December 26, 2013, the United States Department of Labor (“DOL”) filed a lawsuit against the Bank in U.S. District Court for the Northern District of Indiana. Thomas E. Perez, Secretary of the United States Department of Labor v. PBI Bank, Inc. (Civ. Action 3:13-CV-1400-PPS). The complaint alleges that in 2007 the Bank, in the capacity of trustee for the Miller’s Health System’s Inc. Employee Stock Ownership Plan, authorized the alleged imprudent and disloyal purchase of the stock of Miller’s Health Systems, Inc. (“Miller’s Health”) in 2007 for $40 million, a price allegedly far in excess of the stock’s fair market value. The suit also alleges, among other things, that the Bank approved 100% seller financing for the transaction at an excessive rate of interest. On March 31, 2014, the Bank filed its answer, disputing the material factual allegations of the complaint. On April 10, 2014, the Bank filed a third-party complaint against Miller’s Health seeking to enforce its indemnity rights, as well as third party claims for contribution against named directors and officers of Miller’s Health. On March 12, 2015, the parties agreed to settle the litigation, subject to the execution of a written settlement agreement. The Bank has agreed to a settlement payment, which has either been previously reserved for or will be paid from insurance proceeds. We do not anticipate the settlement of this litigation will have a material adverse effect on the Company’s financial condition or operating results.
	AIT Laboratories Employee Stock Ownership Plan. On August 29, 2014, the United States Department of Labor (“DOL”) filed a lawsuit against the Bank and Michael A. Evans in the U.S. District Court for the Southern District of Indiana. Thomas E. Perez, Secretary of the United States Department of Labor v. PBI Bank, Inc. and Michael A. Evans (Case No. 1:14-CV-01429-SEB-MJD). The complaint alleges that in 2009, the Bank, in the capacity of trustee for the AIT Laboratories Employee Stock Ownership Plan, authorized the alleged imprudent and disloyal purchase of the stock of AIT Holdings, Inc. in 2009 for $90 million, a price allegedly far in excess of the stock’s fair market value. The Bank’s responsive pleading was filed on November 4, 2014, disputing the material factual allegations that have been made by the DOL. Discovery is in the early stages. A trial date has been set for November 7, 2016. We intend to defend against DOL’s claims vigorously.
	United States Department of Justice Investigation. On October 17, 2014, the United States Department of Justice (the “DOJ”) notified the Bank that the Bank was the subject of an investigation into possible violations of federal laws, including, among other things, possible violations related to false bank entries, bank fraud and securities fraud. The investigation concerns allegations that Bank personnel engaged in practices intended to delay or avoid disclosure of the Bank’s asset quality at the time of and following the United States Treasury’s purchase of preferred stock from the Company in November 2008. The Bank will respond to and cooperate with any requests for information from DOJ. At this time the investigation is ongoing, and DOJ has made no determination whether to pursue any action in the matter.

Basis_of_Presentation_and_Summ1

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2015
Basis of Presentation	Basis of Presentation – The consolidated financial statements include Porter Bancorp, Inc. (Company) and its subsidiary, PBI Bank (Bank). The Company owns a 100% interest in the Bank. All significant inter-company transactions and accounts have been eliminated in consolidation.
	The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, the financial statements do not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2015 are not necessarily indicative of the results that may be expected for the entire year. A description of other significant accounting policies is presented in the notes to the Consolidated Financial Statements for the year ended December 31, 2014 included in the Company’s Annual Report on Form 10-K.
Use of Estimates	Use of Estimates – To prepare financial statements in conformity with U.S. generally accepted accounting principles, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided, and future results could differ.
Reclassifications	Reclassifications – Some items in the prior year financial statements were reclassified to conform to the current presentation. The reclassifications did not impact net income (loss) or stockholders’ equity.

Securities_Tables

Securities (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value of Available for Sale Securities and Related Gross Unrealized Gains and Losses	The fair value of available for sale securities and the related gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) were as follows:
		Amortized		Gross			Gross			Fair Value
		Cost		Unrealized			Unrealized
				Gains			Losses
		(in thousands)
	March 31, 2015
	Available for sale
	U.S. Government and federal agency	$	30,073	$	235		$	(283	)	$	30,025
	Agency mortgage-backed: residential		104,912		2,136			(92	)		106,956
	State and municipal		7,118		408			—			7,526
	Corporate bonds		12,052		258			(192	)		12,118
	Other debt securities		572		93			—			665
	Total available for sale	$	154,727	$	3,130		$	(567	)	$	157,290
	Held to maturity
	State and municipal	$	42,263	$	2,632		$	—		$	44,895
	Total held to maturity	$	42,263	$	2,632		$	—		$	44,895
	December 31, 2014
	Available for sale
	U.S. Government and federal agency	$	35,725	$	308		$	(590	)	$	35,443
	Agency mortgage-backed: residential		121,985		1,970			(357	)		123,598
	State and municipal		11,690		722			(8	)		12,404
	Corporate bonds		18,087		853			(252	)		18,688
	Other debt securities		572		86			—			658
	Total available for sale	$	188,059	$	3,939		$	(1,207	)	$	190,791
	Held to maturity
	State and municipal	$	42,325	$	2,173		$	—		$	44,498
	Total held to maturity	$	42,325	$	2,173		$	—		$	44,498
Sales and Calls of Available for Sale Securities	Sales and calls of available for sale securities were as follows:
		Three Months Ended
		March 31,
		2015		2014
		(in thousands)
	Proceeds	$	34,138	$	329
	Gross gains		1,551		44
	Gross losses		54		—
Amortized Cost and Fair Value of Debt Investment Securities Portfolio by Contractual Maturity
		March 31, 2015
		Amortized		Fair
		Cost		Value
		(in thousands)
	Maturity
	Available for sale
	Within one year	$	15,002	$	15,102
	One to five years		7,466		7,802
	Five to ten years		26,775		26,765
	Beyond ten years		572		665
	Agency mortgage-backed: residential		104,912		106,956
	Total	$	154,727	$	157,290
	Held to maturity
	One to five years	$	10,840	$	11,377
	Five to ten years		27,867		29,641
	Beyond ten years		3,556		3,877
	Total	$	42,263	$	44,895
Securities with Unrealized Losses	Securities with unrealized losses at March 31, 2015 and December 31, 2014, aggregated by investment category and length of time the individual securities have been in a continuous unrealized loss position, are as follows:
		Less than 12 Months					12 Months or More						Total
	Description of Securities	Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
		Value		Loss			Value			Loss			Value		Loss
		(in thousands)
	March 31, 2015
	Available for sale
	U.S. Government and federal agency	$	2,576	$	(5	)	$	15,550		$	(278	)	$	18,126	$	(283	)
	Agency mortgage-backed: residential		—		—			4,190			(92	)		4,190		(92	)
	Corporate bonds		2,299		(145	)		1,750			(47	)		4,049		(192	)
	Total temporarily impaired	$	4,875	$	(150	)	$	21,490		$	(417	)	$	26,365	$	(567	)
	December 31, 2014
	Available for sale
	U.S. Government and federal agency	$	7,778	$	(60	)	$	18,681		$	(530	)	$	26,459	$	(590	)
	Agency mortgage-backed: residential		6,960		(12	)		17,938			(345	)		24,898		(357	)
	State and municipal		569		(8	)		—			—			569		(8	)
	Corporate bonds		4,884		(119	)		1,660			(133	)		6,544		(252	)
	Total temporarily impaired	$	20,191	$	(199	)	$	38,279		$	(1,008	)	$	58,470	$	(1,207	)

Loans_Tables

Loans (Tables)	3 Months Ended
	Mar. 31, 2015
Loans	Loans were as follows:
		March 31,			December 31,
		2015			2014
		(in thousands)
	Commercial	$	76,954		$	60,936
	Commercial Real Estate:
	Construction		36,793			33,173
	Farmland		77,948			77,419
	Nonfarm nonresidential		159,276			175,452
	Residential Real Estate:
	Multi-family		43,150			41,891
	1-4 Family		197,583			197,278
	Consumer		10,831			11,347
	Agriculture		28,673			26,966
	Other		1,220			537
	Subtotal		632,428			624,999
	Less: Allowance for loan losses		(18,597	)		(19,364	)
	Loans, net	$	613,831		$	605,635
Activity in Allowance for Loan Losses by Portfolio Segment	The following table presents the activity in the allowance for loan losses by portfolio segment for the three months ended March 31, 2015 and 2014:
		Commercial			Commercial			Residential			Consumer			Agriculture			Other			Total
					Real Estate			Real Estate
		(in thousands)
	March 31, 2015:
	Beginning balance	$	2,046		$	10,931		$	5,787		$	274		$	319		$	7		$	19,364
	Provision for loan losses		269			7			(384	)		12			104			(8	)		—
	Loans charged off		(375	)		(369	)		(482	)		(68	)		(33	)		—			(1,327	)
	Recoveries		106			111			300			26			1			16			560
	Ending balance	$	2,046		$	10,680		$	5,221		$	244		$	391		$	15		$	18,597
	March 31, 2014:
	Beginning balance	$	3,221		$	16,414		$	7,762		$	416		$	305		$	6		$	28,124
	Provision for loan losses		445			(1,127	)		534			19			113			16			—
	Loans charged off		(146	)		(1,474	)		(1,308	)		(128	)		(9	)		(17	)		(3,082	)
	Recoveries		88			116			83			76			6			4			373
	Ending balance	$	3,608		$	13,929		$	7,071		$	383		$	415		$	9		$	25,415
Balance in Allowance for Loan Losses and Recorded Investment in Loans by Portfolio Segment and Based on Impairment Method	The following table presents the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and based on the impairment method as of March 31, 2015:
		Commercial			Commercial			Residential			Consumer			Agriculture			Other			Total
					Real Estate			Real Estate
		(in thousands)
	Allowance for loan losses:
	Ending allowance balance attributable to loans:
	Individually evaluated for impairment	$	2		$	51		$	200		$	1		$	—		$	—		$	254
	Collectively evaluated for impairment		2,044			10,629			5,021			243			391			15			18,343
	Total ending allowance balance	$	2,046		$	10,680		$	5,221		$	244		$	391		$	15		$	18,597
	Loans:
	Loans individually evaluated for impairment	$	1,677		$	32,731		$	20,504		$	32		$	232		$	123		$	55,299
	Loans collectively evaluated for impairment		75,277			241,286			220,229			10,799			28,441			1,097			577,129
	Total ending loans balance	$	76,954		$	274,017		$	240,733		$	10,831		$	28,673		$	1,220		$	632,428
	The following table presents the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and based on the impairment method as of December 31, 2014:
		Commercial			Commercial			Residential			Consumer			Agriculture			Other			Total
					Real Estate			Real Estate
		(in thousands)
	Allowance for loan losses:
	Ending allowance balance attributable to loans:
	Individually evaluated for impairment	$	33		$	491		$	227		$	1		$	—		$	—		$	752
	Collectively evaluated for impairment		2,013			10,440			5,560			273			319			7			18,612
	Total ending allowance balance	$	2,046		$	10,931		$	5,787		$	274		$	319		$	7		$	19,364
	Loans:
	Loans individually evaluated for impairment	$	2,022		$	48,141		$	21,384		$	61		$	263		$	122		$	71,993
	Loans collectively evaluated for impairment		58,914			237,903			217,785			11,286			26,703			415			553,006
	Total ending loans balance	$	60,936		$	286,044		$	239,169		$	11,347		$	26,966		$	537		$	624,999
Loans Individually Evaluated for Impairment by Class of Loans	The following tables present information related to loans individually evaluated for impairment by class of loans as of March 31, 2015 and December 31, 2014 and for the three months ended March 31, 2015 and 2014:
		As of March 31, 2015									Three Months Ended March 31, 2015
		Unpaid			Recorded			Allowance			Average			Interest			Cash
		Principal			Investment			For Loan			Recorded			Income			Basis
		Balance						Losses			Investment			Recognized			Income
								Allocated									Recognized
		(in thousands)
	With No Related Allowance Recorded:
	Commercial	$	2,109		$	1,664		$	—		$	1,821		$	—		$	—
	Commercial real estate:
	Construction		4,514			3,938			—			4,019			4			1
	Farmland		7,064			4,870			—			4,804			23			23
	Nonfarm nonresidential		34,805			23,421			—			22,920			65			—
	Residential real estate:
	Multi-family		—			—			—			40			—			—
	1-4 Family		16,813			14,570			—			14,918			134			47
	Consumer		90			24			—			27			—			—
	Agriculture		273			232			—			247			—			—
	Other		368			123			—			123			2			2
	Subtotal		66,036			48,842			—			48,919			228			73
	With An Allowance Recorded:
	Commercial		13			13			2			29			—			—
	Commercial real estate:
	Construction		—			—			—			—			—			—
	Farmland		—			—			—			157			—			—
	Nonfarm nonresidential		586			502			51			8,535			6			—
	Residential real estate:
	Multi-family		4,250			4,250			84			4,258			47			—
	1-4 Family		1,684			1,684			116			1,727			25			—
	Consumer		8			8			1			20			—			—
	Agriculture		—			—			—			—			—			—
	Other		—			—			—			—			—			—
	Subtotal		6,541			6,457			254			14,726			78			—
	Total	$	72,577		$	55,299		$	254		$	63,645		$	306		$	73
		As of December 31, 2014									Three Months Ended March 31, 2014
		Unpaid			Recorded			Allowance			Average			Interest			Cash
		Principal			Investment			For Loan			Recorded			Income			Basis
		Balance						Losses			Investment			Recognized			Income
								Allocated									Recognized
		(in thousands)
	With No Related Allowance Recorded:
	Commercial	$	2,546		$	1,978		$	—		$	2,679		$	1		$	1
	Commercial real estate:
	Construction		4,714			4,100			—			7,433			3			—
	Farmland		6,636			4,739			—			7,322			17			17
	Other		34,437			22,418			—			58,027			182			—
	Residential real estate:
	Multi-family		81			81			—			4,036			—			—
	1-4 Family		18,496			15,266			—			29,053			286			169
	Consumer		93			29			—			4			—			—
	Agriculture		276			263			—			310			3			3
	Other		367			122			—			408			7			7
	Subtotal		67,646			48,996			—			109,272			499			197
	With An Allowance Recorded:
	Commercial		145			44			33			2,218			18			—
	Commercial real estate:
	Construction		—			—			—			1,117			6			—
	Farmland		658			315			38			124			—			—
	Other		19,454			16,569			453			16,564			109			—
	Residential real estate:
	Multi-family		4,266			4,266			91			4,659			37			—
	1-4 Family		1,791			1,771			136			2,001			19			—
	Consumer		32			32			1			65			1			—
	Agriculture		—			—			—			—			—			—
Other		—			—			—			—			—			—
Subtotal		26,346			22,997			752			26,748			190			—
Total	$	93,992		$	71,993		$	752		$	136,020		$	689		$	197
Types of Troubled Debt Restructuring Loan Modification by Portfolio Segment Outstanding	The following table presents the types of TDR loan modifications by portfolio segment outstanding as of March 31, 2015 and December 31, 2014:
		TDRs			TDRs Not			Total
		Performing to			Performing to			TDRs
		Modified			Modified
		Terms			Terms
		(in thousands)
	March 31, 2015
	Commercial
	Rate reduction	$	13		$	69		$	82
	Principal deferral		—			869			869
	Commercial Real Estate:
	Construction
	Rate reduction		267			3,237			3,504
	Farmland
	Principal deferral		—			2,365			2,365
	Nonfarm nonresidential
	Rate reduction		5,543			12,462			18,005
	Principal deferral		660			—			660
	Residential Real Estate:
	Multi-family
	Rate reduction		4,250			—			4,250
	1-4 Family
	Rate reduction		8,057			—			8,057
	Consumer
	Rate reduction		8			—			8
	Total TDRs	$	18,798		$	19,002		$	37,800
		TDRs			TDRs Not			Total
		Performing to			Performing to			TDRs
		Modified Terms			Modified Terms
		(in thousands)
	December 31, 2014
	Commercial
	Rate reduction	$	14		$	—		$	14
	Principal deferral		—			869			869
	Commercial Real Estate:
	Construction
	Rate reduction		268			3,379			3,647
	Farmland
	Principal deferral		—			2,365			2,365
	Other
	Rate reduction		8,622			13,894			22,516
	Principal deferral		671			—			671
	Residential Real Estate:
	Multi-family
	Rate reduction		4,266			—			4,266
	1-4 Family
	Rate reduction		8,112			—			8,112
	Consumer
	Rate reduction		32			—			32
	Total TDRs	$	21,985		$	20,507		$	42,492
Nonperforming Loans	The following table presents the recorded investment in nonaccrual and loans past due 90 days and still on accrual by class of loan as of March 31, 2015, and December 31, 2014:
		Nonaccrual						Loans Past Due 90 Days
								And Over Still Accruing
		March 31,			December 31,			March 31,			December 31,
		2015			2014			2015			2014
		(in thousands)
	Commercial	$	1,663		$	1,978		$	—		$	—
	Commercial Real Estate:
	Construction		3,671			3,831			—			—
	Farmland		4,871			5,054			—			—
	Nonfarm nonresidential		17,719			26,892			—			—
	Residential Real Estate:
	Multi-family		—			80			—			—
	1-4 Family		8,197			8,925			—			151
	Consumer		24			30			18			—
	Agriculture		232			263			—			—
	Other		123			122			—			—
	Total	$	36,500		$	47,175		$	18		$	151
	The following table presents the aging of the recorded investment in past due loans as of March 31, 2015 and December 31, 2014:
		30 – 59			60 – 89			90 Days			Nonaccrual			Total
		Days			Days			And Over						Past Due
		Past Due			Past Due			Past Due						And
														Nonaccrual
		(in thousands)
	March 31, 2015
	Commercial	$	465		$	4		$	—		$	1,663		$	2,132
	Commercial Real Estate:
	Construction		—			—			—			3,671			3,671
	Farmland		343			230			—			4,871			5,444
	Nonfarm nonresidential		356			221			—			17,719			18,296
	Residential Real Estate:
	Multi-family		—			42			—			—			42
	1-4 Family		2,959			1,267			—			8,197			12,423
	Consumer		156			5			18			24			203
	Agriculture		91			—			—			232			323
	Other		—			—			—			123			123
	Total	$	4,370		$	1,769		$	18		$	36,500		$	42,657
		30 – 59			60 – 89			90 Days			Nonaccrual			Total
		Days			Days			And Over						Past Due
		Past Due			Past Due			Past Due						And
														Nonaccrual
		(in thousands)
	December 31, 2014
	Commercial	$	86		$	—		$	—		$	1,978		$	2,064
	Commercial Real Estate:
	Construction		—			—			—			3,831			3,831
	Farmland		400			14			—			5,054			5,468
	Nonfarm nonresidential		241			318			—			26,892			27,451
	Residential Real Estate:
	Multi-family		—			—			—			80			80
	1-4 Family		3,124			601			151			8,925			12,801
	Consumer		109			47			—			30			186
	Agriculture		—			—			—			263			263
	Other		—			—			—			122			122
	Total	$	3,960		$	980		$	151		$	47,175		$	52,266
Risk Category of Loans by Class of Loans	As of March 31, 2015, and December 31, 2014, and based on the most recent analysis performed, the risk category of loans by class of loans is as follows:
		Pass			Watch			Special			Substandard			Doubtful			Total
								Mention
		(in thousands)
	March 31, 2015
	Commercial	$	67,239		$	4,422		$	—		$	5,293		$	—		$	76,954
	Commercial Real Estate:
	Construction		27,975			3,787			—			5,031			—			36,793
	Farmland		63,761			6,834			—			7,353			—			77,948
	Nonfarm nonresidential		107,808			26,755			797			23,916			—			159,276
	Residential Real Estate:
	Multi-family		34,093			5,090			—			3,967			—			43,150
	1-4 Family		150,241			19,869			12			27,461			—			197,583
	Consumer		9,805			370			301			355			—			10,831
	Agriculture		18,526			9,749			—			398			—			28,673
	Other		1,097			—			—			123			—			1,220
	Total	$	480,545		$	76,876		$	1,110		$	73,897		$	—		$	632,428
		Pass			Watch			Special			Substandard			Doubtful			Total
								Mention
		(in thousands)
	December 31, 2014
	Commercial	$	49,440		$	5,063		$	—		$	6,433		$	—		$	60,936
	Commercial Real Estate:
	Construction		25,266			2,990			—			4,917			—			33,173
	Farmland		61,672			7,922			—			7,825			—			77,419
	Nonfarm nonresidential		111,426			21,017			3,747			39,262			—			175,452
	Residential Real Estate:
	Multi-family		31,526			6,039			—			4,326			—			41,891
	1-4 Family		145,450			23,928			131			27,769			—			197,278
	Consumer		10,115			537			311			384			—			11,347
	Agriculture		25,816			704			—			446			—			26,966
	Other		415			—			—			122			—			537
	Total	$	461,126		$	68,200		$	4,189		$	91,484		$	—		$	624,999

Other_Real_Estate_Owned_Tables

Other Real Estate Owned (Tables)	3 Months Ended
	Mar. 31, 2015
Major Categories of Other Real Estate Owned	The following table presents the major categories of OREO at the period-ends indicated:
		March 31,			December 31,
		2015			2014
		(in thousands)
	Commercial Real Estate:
	Construction, land development, and other land	$	18,319		$	18,748
	Farmland		256			669
	Nonfarm nonresidential		14,592			14,860
	Residential Real Estate:
	Multi-family		4,700			4,988
	1-4 Family		6,243			7,998
			44,110			47,263
	Valuation allowance		(492	)		(1,066	)
		$	43,618		$	46,197
Other Real Estate Owned Valuation Allowance Activity
		For the Three
		Months Ended
		March 31,
		2015			2014
		(in thousands)
	OREO Valuation Allowance Activity:
	Beginning balance	$	1,066		$	230
	Provision to allowance		300			250
	Write-downs		(874	)		(272	)
	Ending balance	$	492		$	208
	Residential loans secured by 1-4 family residential properties in the process of foreclosure totaled $2.6 million and $3.6 million at March 31, 2015 and December 31, 2014, respectively.
	Net activity relating to other real estate owned during the three months ended March 31, 2015 and 2014 is as follows:
		For the Three
		Months Ended
		March 31,
		2015			2014
		(in thousands)
	OREO Activity
	OREO as of January 1	$	46,197		$	30,892
	Real estate acquired		347			17,351
	Valuation adjustment writedowns		(300	)		(250	)
	Gain/(loss) on sale		3			—
	Proceeds from sale of properties		(2,629	)		(2,075	)
	OREO as of March 31	$	43,618		$	45,918
Expenses Related to Other Real Estate Owned	Expenses related to other real estate owned include:
		For the Three Months
		Ended March 31,
		2015			2014
		(in thousands)
	Net (gain) loss on sales	$	(3	)	$	—
	Provision to allowance		300			250
	Operating expense		436			412
	Total	$	733		$	662

Deposits_Tables

Deposits (Tables)	3 Months Ended
	Mar. 31, 2015
Schedule of Deposit Balances by Category	The following table shows ending deposit balances by category as of:
		March 31,		December 31,
		2015		2014
		(in thousands)
	Non-interest bearing	$	108,011	$	114,910
	Interest checking		86,614		91,086
	Money market		102,349		109,734
	Savings		36,418		36,430
	Certificates of deposit		597,117		574,681
	Total	$	930,509	$	926,841
Scheduled Maturities of All Time Deposits	Scheduled maturities of all time deposits at March 31, 2015 were as follows (in thousands):
	Year 1	$	371,065
	Year 2		161,220
	Year 3		11,268
	Year 4		11,505
	Year 5		42,058
	Thereafter		1
		$	597,117

Advances_from_the_Federal_Home1

Advances from the Federal Home Loan Bank (Tables)	3 Months Ended
	Mar. 31, 2015
Advances from Federal Home Loan Bank	Advances from the Federal Home Loan Bank were as follows:
		March 31,		December 31,
		2015		2014
		(in thousands)
	Monthly amortizing advances with fixed rates from 0.00% to 5.25% and maturities ranging from 2017 through 2033, averaging 2.85% at March 31, 2015 and 1.02% at December 31, 2014	$	3,597	$	15,752

Fair_Values_Measurement_Tables

Fair Values Measurement (Tables)	3 Months Ended
	Mar. 31, 2015
Financial Assets Measured at Fair Value on Recurring and Non Recurring Basis	Financial assets measured at fair value on a recurring basis at March 31, 2015 and December 31, 2014 are summarized below:
				Fair Value Measurements at March 31, 2015 Using
				(in thousands)
	Description	Carrying		Quoted Prices In			Significant Other		Significant
		Value		Active Markets for			Observable Inputs		Unobservable
				Identical Assets			(Level 2)		Inputs
				(Level 1)					(Level 3)
	Available for sale securities
	U.S. Government and federal agency	$	30,025	$	—		$	30,025	$	—
	Agency mortgage-backed: residential		106,956		—			106,956		—
	State and municipal		7,526		—			7,526		—
	Corporate bonds		12,118		—			12,118		—
	Other debt securities		665		—			—		665
	Total	$	157,290	$	—		$	156,625	$	665
				Fair Value Measurements at December 31, 2014 Using
				(in thousands)
	Description	Carrying		Quoted Prices In			Significant Other		Significant
		Value		Active Markets for			Observable Inputs		Unobservable
				Identical Assets			(Level 2)		Inputs
				(Level 1)					(Level 3)
	Available for sale securities
	U.S. Government and federal agency	$	35,443	$	—		$	35,443	$	—
	Agency mortgage-backed: residential		123,598		—			123,598		—
	State and municipal		12,404		—			12,404		—
	Corporate bonds		18,688		—			18,688		—
	Other debt securities		658		—			—		658
	Total	$	190,791	$	—		$	190,133	$	658
	Financial assets measured at fair value on a non-recurring basis are summarized below:
				Fair Value Measurements at March 31, 2015 Using
				(in thousands)
	Description	Carrying		Quoted Prices In			Significant Other		Significant
		Value		Active Markets for			Observable Inputs		Unobservable
				Identical Assets			(Level 2)		Inputs
				(Level 1)					(Level 3)
	Impaired loans:
	Commercial	$	11	$	—		$	—	$	11
	Commercial real estate:
	Construction		—		—			—		—
	Farmland		—		—			—		—
	Nonfarm nonresidential		162		—			—		162
	Residential real estate:
	Multi-family		—		—			—		—
	1-4 Family		1,568		—			—		1,568
	Consumer		8		—			—		8
	Other		—		—			—		—
	Other real estate owned, net:
	Commercial real estate:
	Construction		18,114		—			—		18,114
	Farmland		253		—			—		253
	Nonfarm nonresidential		14,429		—			—		14,429
	Residential real estate:
	Multi-family		4,648		—			—		4,648
	1-4 Family		6,174		—			—		6,174
				Fair Value Measurements at December 31, 2014 Using
				(in thousands)
	Description	Carrying		Quoted Prices In			Significant Other		Significant
		Value		Active Markets for			Observable Inputs		Unobservable
				Identical Assets			(Level 2)		Inputs
				(Level 1)					(Level 3)
	Impaired loans:
	Commercial	$	12	$	—		$	—	$	12
	Commercial real estate:
	Construction		—		—			—		—
	Farmland		278		—			—		278
Other		15,825		—			—		15,825
Residential real estate:
Multi-family		—		—			—		—
1-4 Family		1,635		—			—		1,635
Consumer		31		—			—		31
Other		—		—			—		—
Other real estate owned, net:
Commercial real estate:
Construction		18,325		—			—		18,325
Farmland		654		—			—		654
Other		14,525		—			—		14,525
Residential real estate:
Multi-family		4,875		—			—		4,875
1-4 Family		7,818		—			—		7,818
Reconciliation of all Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs Level 3	The table below presents a reconciliation of all assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the periods ended March 31, 2015 and 2014:
		Other Debt
		Securities
		2015		2014
		(in thousands)
	Balances of recurring Level 3 assets at January 1	$	658	$	632
	Total gain (loss) for the period:
	Included in other comprehensive income (loss)		7		12
	Balance of recurring Level 3 assets at March 31	$	665	$	644
Qualitative Information About Level Three Fair Value Measurements for Financial Instruments Measured at Fair Value on Non-Recurring Basis	The following table presents qualitative information about level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis at March 31, 2015:
		Fair Value		Valuation		Unobservable Input(s)	Range (Weighted
				Technique(s)			Average)
		(in thousands)
	Impaired loans – Commercial	$	11	Market value approach		Adjustment for receivables and inventory discounts	16% - 32% (24%)
	Impaired loans – Commercial real estate	$	162	Sales comparison approach		Adjustment for differences between the comparable sales	0% - 62% (16%)
				Income approach		Discount or capitalization rate	8% - 9% (8%)
	Impaired loans – Residential real estate	$	1,568	Sales comparison approach		Adjustment for differences between the comparable sales	0% - 39% (11%)
	Other real estate owned – Commercial real estate	$	32,796	Sales comparison approach		Adjustment for differences between the comparable sales	0% - 45% (18%)
				Income approach		Discount or capitalization rate	8% - 20% (13%)
	Other real estate owned – Residential real estate	$	10,822	Sales comparison approach		Adjustment for differences between the comparable sales	0% - 10% (5%)
	The following table presents qualitative information about level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis at December 31, 2014:
		Fair Value		Valuation		Unobservable Input(s)	Range (Weighted
				Technique(s)			Average)
		(in thousands)
	Impaired loans – Commercial	$	12	Market value approach		Adjustment for receivables and inventory discounts	16% -32% (24%)
	Impaired loans – Commercial real estate	$	16,103	Sales comparison approach		Adjustment for differences between the comparable sales	0% - 62% (14%)
				Income approach		Discount or capitalization rate	8% - 9% (8%)
	Impaired loans – Residential real estate	$	1,635	Sales comparison approach		Adjustment for differences between the comparable sales	0% - 39% (11%)
	Other real estate owned – Commercial real estate	$	33,504	Sales comparison approach		Adjustment for differences between the comparable sales	0% - 45% (18%)
				Income approach		Discount or capitalization rate	9% - 20% (13%)
	Other real estate owned – Residential real estate	$	12,693	Sales comparison approach		Adjustment for differences between the comparable sales	0% - 15% (6%)
Carrying Amount and Estimated Fair Values of Financial Instruments	Carrying amount and estimated fair values of financial instruments were as follows for the periods indicated:
				Fair Value Measurements at March 31, 2015
				Using
		Carrying		Level 1			Level 2		Level 3		Total
		Amount
		(in thousands)
	Financial assets
	Cash and cash equivalents	$	109,771	$	96,168		$	13,603	$	—	$	109,771
	Securities available for sale		157,290		—			156,625		665		157,290
	Securities held to maturity		42,263		—			44,895		—		44,895
	Federal Home Loan Bank stock		7,323		N/A			N/A		N/A		N/A
	Loans held for sale		—		—			—		—		—
	Loans, net		613,831		—			—		622,241		622,241
	Accrued interest receivable		3,036		—			1,072		1,964		3,036
	Financial liabilities
	Deposits	$	930,509	$	108,011		$	817,396	$	—	$	925,407
	Securities sold under agreements to repurchase		1,145		—			1,145		—		1,145
	Federal Home Loan Bank advances		3,597		—			3,604		—		3,604
	Subordinated capital notes		4,725		—			—		4,558		4,558
	Junior subordinated debentures		25,000		—			—		14,433		14,433
	Accrued interest payable		2,864		—			606		2,258		2,864
				Fair Value Measurements at December 31, 2014 Using
		Carrying		Level 1			Level 2		Level 3		Total
		Amount
		(in thousands)
	Financial assets
	Cash and cash equivalents	$	80,180	$	49,007		$	31,173	$	—	$	80,180
	Securities available for sale		190,791		—			190,133		658		190,791
	Securities held to maturity		42,325		—			44,498		—		44,498
	Federal Home Loan Bank stock		7,323		N/A			N/A		N/A		N/A
	Loans held for sale		8,926		—			8,926		—		8,926
	Loans, net		605,635		—			—		615,914		615,914
	Accrued interest receivable		3,503		—			1,389		2,114		3,503
	Financial liabilities
	Deposits	$	926,841	$	114,910		$	804,508	$	—	$	919,418
	Securities sold under agreements to repurchase		1,341		—			1,341		—		1,341
	Federal Home Loan Bank advances		15,752		—			15,758		—		15,758
	Subordinated capital notes		4,950		—			—		4,765		4,765
	Junior subordinated debentures		25,000		—			—		14,214		14,214
	Accrued interest payable		2,858		—			751		2,107		2,858

Income_Taxes_Tables

Income Taxes (Tables)	3 Months Ended
	Mar. 31, 2015
Deferred Tax Assets and Liabilities	Deferred tax assets and liabilities were due to the following as of:
		March 31,			December 31,
		2015			2014
		(in thousands)
	Deferred tax assets:
	Net operating loss carry-forward	$	32,067		$	32,111
	Allowance for loan losses		6,509			6,777
	Other real estate owned write-down		9,899			10,000
	Alternative minimum tax credit carry-forward		692			692
	Net assets from acquisitions		670			668
	Other than temporary impairment on securities		46			46
	New market tax credit carry-forward		208			208
	Nonaccrual loan interest		847			958
	Amortization of non-compete agreements		13			14
	Other		1,873			1,371
			52,824			52,845
	Deferred tax liabilities:
	FHLB stock dividends		928			928
	Fixed assets		248			264
	Originated mortgage servicing rights		48			53
	Net unrealized gain on securities		530			579
	Other		668			373
			2,422			2,197
	Net deferred tax assets before valuation allowance		50,402			50,648
	Valuation allowance		(50,402	)		(50,648	)
	Net deferred tax asset	$	—		$	—

Stock_Plans_and_Stock_Based_Co1

Stock Plans and Stock Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2015
Summary of Unvested Share Activity	The following table summarizes unvested share activity as of and for the periods indicated for the Stock Incentive Plan:
		Three Months Ended					Twelve Months Ended
		March 31, 2015					December 31, 2014
		Shares			Weighted		Shares			Weighted
					Average					Average
					Grant					Grant
					Price					Price
	Outstanding, beginning		770,440		$	1.33		787,426		$	1.56
	Granted		800,000			0.89		122,220			0.93
	Vested		(63,063	)		2		(133,227	)		2.2
	Terminated		(450,994	)		1.25		—			—
	Forfeited		(140	)		22.03		(5,979	)		4.21
	Outstanding, ending		1,056,243		$	0.99		770,440		$	1.33
Summary of Unvested Share Activity for Non-Employee Directors	The following table summarizes unvested share activity as of and for the periods indicated for the Non-Employee Directors Stock Ownership Incentive Plan:
		Three Months Ended					Twelve Months Ended
		March 31, 2015					December 31, 2014
		Shares			Weighted		Shares			Weighted
					Average					Average
					Grant					Grant
					Price					Price
	Outstanding, beginning		5,052		$	1.65		47,428		$	1.69
	Granted		—			—		166,668			0.9
	Vested		—			—		(154,222	)		0.98
	Forfeited		—			—		(54,822	)		1.29
	Outstanding, ending		5,052		$	1.65		5,052		$	1.65
Unrecognized Stock Based Compensation Expense Related to Unvested Shares	Unrecognized stock based compensation expense related to unvested shares for the remainder of 2015 and beyond is estimated as follows (in thousands):
	April 2015 – December 2015	$	282
	2016		263
	2017		158
	2018		149
	2019 & thereafter		—

Earnings_Loss_per_Share_Tables

Earnings (Loss) per Share (Tables)	3 Months Ended
	Mar. 31, 2015
Computation of Basic and Diluted Earnings Per Share	The factors used in the basic and diluted earnings per share computations follow:
		Three Months Ended
		March 31,
		2015		2014
		(in thousands, except share and
		per share data)
	Net income (loss)	$	594	$	(287	)
	Less:
	Preferred stock dividends		—		786
	Earnings (loss) allocated to unvested shares		21		(70	)
	Earnings (loss) attributable to participating preferred shares		164		(27	)
	Net income (loss) attributable to common shareholders, basic and diluted	$	409	$	(976	)
	Basic
	Weighted average common shares including unvested common shares outstanding		25,419,523		13,210,930
	Less:
	Weighted average unvested common shares		918,393		856,723
	Weighted average Series B preferred shares		2,702,400		—
	Weighted average Series C preferred shares		—		332,894
	Weighted average Series D preferred shares		4,305,333		—
	Weighted average common shares outstanding		17,493,397		12,021,313
	Basic income (loss) per common share	$	0.02	$	(0.08	)
	Diluted
	Add: Dilutive effects of assumed exercises of common stock warrants		—		—
	Weighted average common shares and potential common shares		17,493,397		12,021,313
	Diluted loss per common share	$	0.02	$	(0.08	)

Capital_Requirements_and_Restr1

Capital Requirements and Restrictions on Retained Earnings (Tables)	3 Months Ended
	Mar. 31, 2015
Ratios and Amounts of Common Equity Tier One, Tier One Capital and Total Capital to Risk-Adjusted Assets and Leverage Ratios	The following table shows the ratios and amounts of Common Equity Tier 1, Tier 1 capital and total capital to risk-adjusted assets and the leverage ratios for Porter Bancorp, Inc. and the Bank at the dates indicated (dollars in thousands):
		Actual					For Capital Adequacy Purposes
		Amount		Ratio			Amount		Ratio
	As of March 31, 2015:
	Total risk-based capital (to risk-weighted assets)
	Consolidated	$	70,949		10.05	%	$	56,459		8	%
	Bank		72,335		10.25			56,435		8
	Total common equity Tier I risk-based capital (to risk-weighted assets)
	Consolidated		33,232		4.71			31,758		4.5
	Bank		58,672		8.32			31,745		4.5
	Tier I capital (to risk-weighted assets)
	Consolidated		41,513		5.88			42,344		6
	Bank		58,672		8.32			42,326		6
	Tier I capital (to average assets)
	Consolidated		41,513		4.13			40,209		4
	Bank		58,672		5.84			40,212		4
		Actual					For Capital Adequacy Purposes
		Amount		Ratio			Amount		Ratio
	As of December 31, 2014:
	Total risk-based capital (to risk-weighted assets)
	Consolidated	$	73,595		10.61	%	$	55,483		8	%
	Bank		73,174		10.57			55,383		8
	Tier I capital (to risk-weighted assets)
	Consolidated		46,459		6.7			27,741		4
	Bank		59,438		8.59			27,691		4
	Tier I capital (to average assets)
	Consolidated		46,459		4.51			41,193		4
	Bank		59,438		5.78			41,143		4
Consent Order to Achieve the Minimum Capital Ratios	The Consent Order requires the Bank to achieve the minimum capital ratios presented below:
		Actual as of March 31, 2015					Ratio Required by Consent Order
		Amount		Ratio			Amount		Ratio
	Total capital to risk-weighted assets	$	72,335		10.25	%	$	84,652		12	%
	Tier I capital to average assets		58,672		5.84			90,476		9

Basis_of_Presentation_and_Summ2

Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail)	Mar. 31, 2015
Significant Accounting Policies [Line Items]
Ownership Interest in PBI Bank	100.00%

Going_Concern_Considerations_a1

Going Concern Considerations and Future Plans - Additional Information (Detail) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2010	Oct. 31, 2012	Jun. 24, 2011
Recent Developments [Line Items]
Net income (loss) attributable to common shareholders, basic and diluted	$409,000	($976,000)	$19,400,000	($3,400,000)
Net loss	594,000	-287,000	-11,200,000
Provision for loan losses	0	0	7,100,000
Other real estate owned expense	733,000	662,000	5,800,000
Loan collection expenses	283,000	539,000	3,000,000
Dividends and accretion on preferred stock		786,000	2,400,000
(Earnings) loss allocated to participating securities	185,000	-97,000	3,200,000
Effect of preferred stock exchange			36,100,000
Tier I leverage ratio, regulatory minimum	4.00%		4.00%
Total risk-based capital, regulatory minimum	8.00%		8.00%
Gross loans	632,428,000		624,999,000		1,300,000,000
OREO acquired during the period	347,000		32,300,000	20,600,000
Nonaccrual loans	36,500,000		47,175,000
Net write-down of other real estate owned	300,000	250,000
Gain (loss) on sale of OREO	3,000
Proceeds from sale of OREO	2,600,000	2,100,000
Liquid assets	1,600,000
Junior subordinated debentures
Recent Developments [Line Items]
Maximum number of consecutive quarters the company has the option to defer interest payments	20
Deferred distributions on our trust preferred securities	2,300,000
Parent | Scenario, Forecast
Recent Developments [Line Items]
Operating expenses for 2015	1,000,000
Real estate construction | Other real estate owned, net
Recent Developments [Line Items]
Percentage of OREO portfolio	42.00%		40.00%
Commercial Real Estate
Recent Developments [Line Items]
Provision for loan losses	7,000	-1,127,000
Gross loans	274,017,000		286,044,000
Commercial Real Estate | Other real estate owned, net
Recent Developments [Line Items]
Percentage of OREO portfolio	33.00%		31.00%
Pricing Strategy Change
Recent Developments [Line Items]
Fair value adjustments and loss on sale of OREO	297,000
Net write-down of other real estate owned	300,000
Gain (loss) on sale of OREO	3,000
Series E Preferred Stock And Series F Preferred Stock
Recent Developments [Line Items]
Preferred stock, Liquidation preference	$10,500,000
1-4 Family | Other real estate owned, net
Recent Developments [Line Items]
Percentage of OREO portfolio	14.00%		17.00%
Consent order
Recent Developments [Line Items]
Tier I leverage ratio, regulatory minimum						9.00%	9.00%
Total risk-based capital, regulatory minimum						12.00%	12.00%
Consent order | Construction and development loans
Recent Developments [Line Items]
Maximum concentration of loans to total risk based capital	75.00%						75.00%
Consent order | Non-owner occupied commercial real estate loans
Recent Developments [Line Items]
Maximum concentration of loans to total risk based capital							250.00%
Concentration of loans to total risk based capital	243.00%		262.00%

Fair_Value_of_Available_for_Sa

Fair Value of Available for Sale Securities, Held to Maturity Securities and Related Gross Unrealized Gains and Losses (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]
Available for sale, Amortized Cost	$154,727	$188,059
Available for sale, Gross Unrealized Gains	3,130	3,939
Available for sale, Gross Unrealized Losses	-567	-1,207
Available for sale, Fair Value	157,290	190,791
Held to maturity, Amortized Cost	42,263	42,325
Held to maturity, Gross Unrealized Gains	2,632	2,173
Held to maturity, Gross Unrealized Losses	0	0
Held to maturity, Fair Value	44,895	44,498
State and municipal
Schedule of Available-for-sale Securities [Line Items]
Held to maturity, Amortized Cost	42,263	42,325
Held to maturity, Gross Unrealized Gains	2,632	2,173
Held to maturity, Gross Unrealized Losses	0	0
Held to maturity, Fair Value	44,895	44,498
State and municipal | Debt securities
Schedule of Available-for-sale Securities [Line Items]
Available for sale, Amortized Cost	7,118	11,690
Available for sale, Gross Unrealized Gains	408	722
Available for sale, Gross Unrealized Losses		-8
Available for sale, Fair Value	7,526	12,404
U.S. Government and federal agency | Debt securities
Schedule of Available-for-sale Securities [Line Items]
Available for sale, Amortized Cost	30,073	35,725
Available for sale, Gross Unrealized Gains	235	308
Available for sale, Gross Unrealized Losses	-283	-590
Available for sale, Fair Value	30,025	35,443
Agency mortgage-backed: residential | Debt securities
Schedule of Available-for-sale Securities [Line Items]
Available for sale, Amortized Cost	104,912	121,985
Available for sale, Gross Unrealized Gains	2,136	1,970
Available for sale, Gross Unrealized Losses	-92	-357
Available for sale, Fair Value	106,956	123,598
Corporate bonds | Debt securities
Schedule of Available-for-sale Securities [Line Items]
Available for sale, Amortized Cost	12,052	18,087
Available for sale, Gross Unrealized Gains	258	853
Available for sale, Gross Unrealized Losses	-192	-252
Available for sale, Fair Value	12,118	18,688
Other | Debt securities
Schedule of Available-for-sale Securities [Line Items]
Available for sale, Amortized Cost	572	572
Available for sale, Gross Unrealized Gains	93	86
Available for sale, Fair Value	$665	$658

Sales_and_Calls_of_Available_f

Sales and Calls of Available for Sale Securities (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Gain (Loss) on Investments [Line Items]
Proceeds	$34,138	$329
Gross gains	1,551	44
Gross losses	$54

Amortized_Cost_and_Fair_Value_

Amortized Cost and Fair Value of Debt Investment Securities Portfolio by Contractual Maturity (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Available for sale, amortized Cost
Available for sale, within one year	$15,002
Available for sale, one to five years	7,466
Available for sale, five to ten years	26,775
Available for sale, beyond ten years	572
Available for sale, agency mortgage-backed: residential	104,912
Total	154,727
Held to maturity, amortized Cost
Held to maturity, one to five years	10,840
Five to ten years	27,867
Beyond ten years	3,556
Total	42,263	42,325
Available for sale, fair value
Available for sale, within one year	15,102
Available for sale, one to five years	7,802
Available for sale, five to ten years	26,765
Available for sale, beyond ten years	665
Available for sale, agency mortgage-backed: residential	106,956
Total	157,290
Held to maturity, fair value
Held to maturity, one to five years	11,377
Five to ten years	29,641
Beyond ten years	3,877
Total	$44,895	$44,498

Securities_Additional_Informat

Securities - Additional Information (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
	Entity	Entity
Schedule of Available-for-sale Securities [Line Items]
Securities pledged, carrying values	$62,100,000	$80,800,000
Available for sale securities	157,290,000
Number of issuer of holdings of securities other than U.S. Government and its agencies greater than 10% of stockholders' equity	0	0
Held to maturity securities	0	0
KENTUCKY
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities	18,200,000	19,100,000
TEXAS
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities	$4,400,000	$4,400,000

Securities_with_Unrealized_Los

Securities with Unrealized Losses (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Investments, Unrealized Loss Position [Line Items]
Available for sale Fair value, less than 12 months	$4,875	$20,191
Available for sale Unrealized loss, less than 12 months	-150	-199
Available for sale Fair value, 12 months or more	21,490	38,279
Available for sale Unrealized loss, 12 months or more	-417	-1,008
Available for sale Fair value, total	26,365	58,470
Available for sale Unrealized loss, total	-567	-1,207
Debt securities | U.S. Government and federal agency
Investments, Unrealized Loss Position [Line Items]
Available for sale Fair value, less than 12 months	2,576	7,778
Available for sale Unrealized loss, less than 12 months	-5	-60
Available for sale Fair value, 12 months or more	15,550	18,681
Available for sale Unrealized loss, 12 months or more	-278	-530
Available for sale Fair value, total	18,126	26,459
Available for sale Unrealized loss, total	-283	-590
Debt securities | Agency mortgage-backed: residential
Investments, Unrealized Loss Position [Line Items]
Available for sale Fair value, less than 12 months		6,960
Available for sale Unrealized loss, less than 12 months		-12
Available for sale Fair value, 12 months or more	4,190	17,938
Available for sale Unrealized loss, 12 months or more	-92	-345
Available for sale Fair value, total	4,190	24,898
Available for sale Unrealized loss, total	-92	-357
Debt securities | State and municipal
Investments, Unrealized Loss Position [Line Items]
Available for sale Fair value, less than 12 months		569
Available for sale Unrealized loss, less than 12 months		-8
Available for sale Fair value, total		569
Available for sale Unrealized loss, total		-8
Debt securities | Corporate bonds
Investments, Unrealized Loss Position [Line Items]
Available for sale Fair value, less than 12 months	2,299	4,884
Available for sale Unrealized loss, less than 12 months	-145	-119
Available for sale Fair value, 12 months or more	1,750	1,660
Available for sale Unrealized loss, 12 months or more	-47	-133
Available for sale Fair value, total	4,049	6,544
Available for sale Unrealized loss, total	($192)	($252)

Loans_Detail

Loans (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2010
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$632,428	$624,999	$1,300,000
Less: Allowance for loan losses	-18,597	-19,364
Loans, net	613,831	605,635
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	76,954	60,936
Less: Allowance for loan losses	-2,046	-2,046
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	274,017	286,044
Less: Allowance for loan losses	-10,680	-10,931
Commercial Real Estate | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	36,793	33,173
Commercial Real Estate | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	77,948	77,419
Commercial Real Estate | Nonfarm nonresidential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	159,276	175,452
Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	240,733	239,169
Less: Allowance for loan losses	-5,221	-5,787
Residential Real Estate | Multi-Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	43,150	41,891
Residential Real Estate | 1-4 Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	197,583	197,278
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	10,831	11,347
Less: Allowance for loan losses	-244	-274
Agriculture
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	28,673	26,966
Less: Allowance for loan losses	-391	-319
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,220	537
Less: Allowance for loan losses	($15)	($7)

Activity_in_Allowance_for_Loan

Activity in Allowance for Loan Losses by Portfolio Segment (Detail) (USD $)	3 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	$19,364	$28,124	$28,124
Provision for loan losses	0	0	7,100
Loans charged off	-1,327	-3,082
Recoveries	560	373
Ending balance	18,597	25,415	19,364
Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	2,046	3,221	3,221
Provision for loan losses	269	445
Loans charged off	-375	-146
Recoveries	106	88
Ending balance	2,046	3,608
Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	10,931	16,414	16,414
Provision for loan losses	7	-1,127
Loans charged off	-369	-1,474
Recoveries	111	116
Ending balance	10,680	13,929
Residential Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	5,787	7,762	7,762
Provision for loan losses	-384	534
Loans charged off	-482	-1,308
Recoveries	300	83
Ending balance	5,221	7,071
Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	274	416	416
Provision for loan losses	12	19
Loans charged off	-68	-128
Recoveries	26	76
Ending balance	244	383
Agriculture
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	319	305	305
Provision for loan losses	104	113
Loans charged off	-33	-9
Recoveries	1	6
Ending balance	391	415
Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	7	6	6
Provision for loan losses	-8	16
Loans charged off		-17
Recoveries	16	4
Ending balance	$15	$9

Balance_in_Allowance_for_Loan_

Balance in Allowance for Loan Losses and Recorded Investment in Loans by Portfolio Segment and Based on Impairment Method (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2010
In Thousands, unless otherwise specified
Allowance for loan losses:
Individually evaluated for impairment	$254	$752
Collectively evaluated for impairment	18,343	18,612
Total ending allowance balance	18,597	19,364
Loans:
Loans individually evaluated for impairment	55,299	71,993
Loans collectively evaluated for impairment	577,129	553,006
Total ending loans balance	632,428	624,999	1,300,000
Commercial
Allowance for loan losses:
Individually evaluated for impairment	2	33
Collectively evaluated for impairment	2,044	2,013
Total ending allowance balance	2,046	2,046
Loans:
Loans individually evaluated for impairment	1,677	2,022
Loans collectively evaluated for impairment	75,277	58,914
Total ending loans balance	76,954	60,936
Commercial Real Estate
Allowance for loan losses:
Individually evaluated for impairment	51	491
Collectively evaluated for impairment	10,629	10,440
Total ending allowance balance	10,680	10,931
Loans:
Loans individually evaluated for impairment	32,731	48,141
Loans collectively evaluated for impairment	241,286	237,903
Total ending loans balance	274,017	286,044
Residential Real Estate
Allowance for loan losses:
Individually evaluated for impairment	200	227
Collectively evaluated for impairment	5,021	5,560
Total ending allowance balance	5,221	5,787
Loans:
Loans individually evaluated for impairment	20,504	21,384
Loans collectively evaluated for impairment	220,229	217,785
Total ending loans balance	240,733	239,169
Consumer
Allowance for loan losses:
Individually evaluated for impairment	1	1
Collectively evaluated for impairment	243	273
Total ending allowance balance	244	274
Loans:
Loans individually evaluated for impairment	32	61
Loans collectively evaluated for impairment	10,799	11,286
Total ending loans balance	10,831	11,347
Agriculture
Allowance for loan losses:
Collectively evaluated for impairment	391	319
Total ending allowance balance	391	319
Loans:
Loans individually evaluated for impairment	232	263
Loans collectively evaluated for impairment	28,441	26,703
Total ending loans balance	28,673	26,966
Other
Allowance for loan losses:
Collectively evaluated for impairment	15	7
Total ending allowance balance	15	7
Loans:
Loans individually evaluated for impairment	123	122
Loans collectively evaluated for impairment	1,097	415
Total ending loans balance	$1,220	$537

Loans_Individually_Evaluated_f

Loans Individually Evaluated for Impairment by Class of Loans (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	$72,577	$93,992
Recorded Investment	55,299	71,993
Allowance For Loan Losses Allocated	254	752	2,500
Average Recorded Investment	63,645	136,020
Interest Income Recognized	306	689
Cash Basis Income Recognized	73	197
Commercial
Financing Receivable, Impaired [Line Items]
Recorded Investment	1,677	2,022
Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Recorded Investment	32,731	48,141
Residential Real Estate
Financing Receivable, Impaired [Line Items]
Recorded Investment	20,504	21,384
Consumer
Financing Receivable, Impaired [Line Items]
Recorded Investment	32	61
Agriculture
Financing Receivable, Impaired [Line Items]
Recorded Investment	232	263
Other
Financing Receivable, Impaired [Line Items]
Recorded Investment	123	122
Impaired Financing Receivables with No Related Allowance
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	66,036	67,646
Recorded Investment	48,842	48,996
Average Recorded Investment	48,919	109,272
Interest Income Recognized	228	499
Cash Basis Income Recognized	73	197
Impaired Financing Receivables with No Related Allowance | Commercial
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	2,109	2,546
Recorded Investment	1,664	1,978
Average Recorded Investment	1,821	2,679
Interest Income Recognized		1
Cash Basis Income Recognized		1
Impaired Financing Receivables with No Related Allowance | Commercial Real Estate | Construction
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	4,514	4,714
Recorded Investment	3,938	4,100
Average Recorded Investment	4,019	7,433
Interest Income Recognized	4	3
Cash Basis Income Recognized	1
Impaired Financing Receivables with No Related Allowance | Commercial Real Estate | Farmland
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	7,064	6,636
Recorded Investment	4,870	4,739
Average Recorded Investment	4,804	7,322
Interest Income Recognized	23	17
Cash Basis Income Recognized	23	17
Impaired Financing Receivables with No Related Allowance | Commercial Real Estate | Other
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance		34,437
Recorded Investment		22,418
Average Recorded Investment		58,027
Interest Income Recognized		182
Impaired Financing Receivables with No Related Allowance | Commercial Real Estate | Nonfarm nonresidential
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	34,805
Recorded Investment	23,421
Average Recorded Investment	22,920
Interest Income Recognized	65
Impaired Financing Receivables with No Related Allowance | Residential Real Estate | Multi-Family
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance		81
Recorded Investment		81
Average Recorded Investment	40	4,036
Impaired Financing Receivables with No Related Allowance | Residential Real Estate | 1-4 Family
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	16,813	18,496
Recorded Investment	14,570	15,266
Average Recorded Investment	14,918	29,053
Interest Income Recognized	134	286
Cash Basis Income Recognized	47	169
Impaired Financing Receivables with No Related Allowance | Consumer
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	90	93
Recorded Investment	24	29
Average Recorded Investment	27	4
Impaired Financing Receivables with No Related Allowance | Agriculture
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	273	276
Recorded Investment	232	263
Average Recorded Investment	247	310
Interest Income Recognized		3
Cash Basis Income Recognized		3
Impaired Financing Receivables with No Related Allowance | Other
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	368	367
Recorded Investment	123	122
Average Recorded Investment	123	408
Interest Income Recognized	2	7
Cash Basis Income Recognized	2	7
Impaired Financing Receivables with An Allowance Recorded
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	6,541	26,346
Recorded Investment	6,457	22,997
Allowance For Loan Losses Allocated	254	752
Average Recorded Investment	14,726	26,748
Interest Income Recognized	78	190
Impaired Financing Receivables with An Allowance Recorded | Commercial
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	13	145
Recorded Investment	13	44
Allowance For Loan Losses Allocated	2	33
Average Recorded Investment	29	2,218
Interest Income Recognized		18
Impaired Financing Receivables with An Allowance Recorded | Commercial Real Estate | Construction
Financing Receivable, Impaired [Line Items]
Average Recorded Investment		1,117
Interest Income Recognized		6
Impaired Financing Receivables with An Allowance Recorded | Commercial Real Estate | Farmland
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance		658
Recorded Investment		315
Allowance For Loan Losses Allocated		38
Average Recorded Investment	157	124
Impaired Financing Receivables with An Allowance Recorded | Commercial Real Estate | Other
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance		19,454
Recorded Investment		16,569
Allowance For Loan Losses Allocated		453
Average Recorded Investment		16,564
Interest Income Recognized		109
Impaired Financing Receivables with An Allowance Recorded | Commercial Real Estate | Nonfarm nonresidential
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	586
Recorded Investment	502
Allowance For Loan Losses Allocated	51
Average Recorded Investment	8,535
Interest Income Recognized	6
Impaired Financing Receivables with An Allowance Recorded | Residential Real Estate | Multi-Family
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	4,250	4,266
Recorded Investment	4,250	4,266
Allowance For Loan Losses Allocated	84	91
Average Recorded Investment	4,258	4,659
Interest Income Recognized	47	37
Impaired Financing Receivables with An Allowance Recorded | Residential Real Estate | 1-4 Family
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	1,684	1,791
Recorded Investment	1,684	1,771
Allowance For Loan Losses Allocated	116	136
Average Recorded Investment	1,727	2,001
Interest Income Recognized	25	19
Impaired Financing Receivables with An Allowance Recorded | Consumer
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	8	32
Recorded Investment	8	32
Allowance For Loan Losses Allocated	1	1
Average Recorded Investment	20	65
Interest Income Recognized		$1

Types_of_Troubled_Debt_Restruc

Types of Troubled Debt Restructuring Loan Modification by Portfolio Segment Outstanding (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	$37,800	$42,492
Commercial | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	82	14
Commercial | Principal Deferral
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	869	869
Commercial Real Estate | Construction | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	3,504	3,647
Commercial Real Estate | Farmland | Principal Deferral
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	2,365	2,365
Commercial Real Estate | Other | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring		22,516
Commercial Real Estate | Other | Principal Deferral
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring		671
Commercial Real Estate | Nonfarm nonresidential | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	18,005
Commercial Real Estate | Nonfarm nonresidential | Principal Deferral
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	660
Residential Real Estate | Multi-Family | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	4,250	4,266
Residential Real Estate | 1-4 Family | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	8,057	8,112
Consumer | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	8	32
TDRs Performing to Modified Terms
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	18,798	21,985
TDRs Performing to Modified Terms | Commercial | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	13	14
TDRs Performing to Modified Terms | Commercial Real Estate | Construction | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	267	268
TDRs Performing to Modified Terms | Commercial Real Estate | Other | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring		8,622
TDRs Performing to Modified Terms | Commercial Real Estate | Other | Principal Deferral
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring		671
TDRs Performing to Modified Terms | Commercial Real Estate | Nonfarm nonresidential | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	5,543
TDRs Performing to Modified Terms | Commercial Real Estate | Nonfarm nonresidential | Principal Deferral
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	660
TDRs Performing to Modified Terms | Residential Real Estate | Multi-Family | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	4,250	4,266
TDRs Performing to Modified Terms | Residential Real Estate | 1-4 Family | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	8,057	8,112
TDRs Performing to Modified Terms | Consumer | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	8	32
TDRs Not Performing to Modified Terms
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	19,002	20,507
TDRs Not Performing to Modified Terms | Commercial | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	69
TDRs Not Performing to Modified Terms | Commercial | Principal Deferral
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	869	869
TDRs Not Performing to Modified Terms | Commercial Real Estate | Construction | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	3,237	3,379
TDRs Not Performing to Modified Terms | Commercial Real Estate | Farmland | Principal Deferral
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	2,365	2,365
TDRs Not Performing to Modified Terms | Commercial Real Estate | Other | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring		13,894
TDRs Not Performing to Modified Terms | Commercial Real Estate | Nonfarm nonresidential | Rate Reduction
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring	$12,462

Loans_Additional_Information_D

Loans - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
TDR loan modifications	$0	$0
TDRs defaulted on restructured loan amount	0	0
Minimum outstanding loan balance for credit risk analysis	500,000
Troubled Debt Restructurings Term Modification One
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Company's TDRs that were performing according to modified terms	50.00%		52.00%
Reserves to customers whose loan terms have been modified in TDRs outstanding	253,000		579,000
Commitment to lend additional amount to customers with outstanding loans classified as TDRs	$0		$0

Recorded_Investment_in_Nonaccr

Recorded Investment in Nonaccrual and Loans Past due 90 Days and Still on Accrual by Class of Loan (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	$36,500	$47,175
Loans Past Due 90 Day And Over Still Accruing	18	151
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	1,663	1,978
Commercial Real Estate | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	3,671	3,831
Commercial Real Estate | Farmland
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	4,871	5,054
Commercial Real Estate | Nonfarm nonresidential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	17,719	26,892
Residential Real Estate | Multi-Family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual		80
Residential Real Estate | 1-4 Family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	8,197	8,925
Loans Past Due 90 Day And Over Still Accruing		151
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	24	30
Loans Past Due 90 Day And Over Still Accruing	18
Agriculture
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	232	263
Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	$123	$122

Aging_of_Recorded_Investment_i

Aging of Recorded Investment in Past Due Loans (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	$4,370	$3,960
60 - 89 Days Past Due	1,769	980
90 Days And Over Past Due	18	151
Nonaccrual	36,500	47,175
Total Past Due And Nonaccrual	42,657	52,266
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	465	86
60 - 89 Days Past Due	4
Nonaccrual	1,663	1,978
Total Past Due And Nonaccrual	2,132	2,064
Commercial Real Estate | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	3,671	3,831
Total Past Due And Nonaccrual	3,671	3,831
Commercial Real Estate | Farmland
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	343	400
60 - 89 Days Past Due	230	14
Nonaccrual	4,871	5,054
Total Past Due And Nonaccrual	5,444	5,468
Commercial Real Estate | Nonfarm nonresidential
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	356	241
60 - 89 Days Past Due	221	318
Nonaccrual	17,719	26,892
Total Past Due And Nonaccrual	18,296	27,451
Residential Real Estate | Multi-Family
Financing Receivable, Recorded Investment, Past Due [Line Items]
60 - 89 Days Past Due	42
Nonaccrual		80
Total Past Due And Nonaccrual	42	80
Residential Real Estate | 1-4 Family
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	2,959	3,124
60 - 89 Days Past Due	1,267	601
90 Days And Over Past Due		151
Nonaccrual	8,197	8,925
Total Past Due And Nonaccrual	12,423	12,801
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	156	109
60 - 89 Days Past Due	5	47
90 Days And Over Past Due	18
Nonaccrual	24	30
Total Past Due And Nonaccrual	203	186
Agriculture
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	91
Nonaccrual	232	263
Total Past Due And Nonaccrual	323	263
Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	123	122
Total Past Due And Nonaccrual	$123	$122

Risk_Category_of_Loans_by_Clas

Risk Category of Loans by Class of Loans (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2010
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]
Gross loans	$632,428	$624,999	$1,300,000
Commercial
Financing Receivable, Recorded Investment [Line Items]
Gross loans	76,954	60,936
Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Gross loans	274,017	286,044
Commercial Real Estate | Construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	36,793	33,173
Commercial Real Estate | Farmland
Financing Receivable, Recorded Investment [Line Items]
Gross loans	77,948	77,419
Commercial Real Estate | Nonfarm nonresidential
Financing Receivable, Recorded Investment [Line Items]
Gross loans	159,276	175,452
Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Gross loans	240,733	239,169
Residential Real Estate | Multi-Family
Financing Receivable, Recorded Investment [Line Items]
Gross loans	43,150	41,891
Residential Real Estate | 1-4 Family
Financing Receivable, Recorded Investment [Line Items]
Gross loans	197,583	197,278
Consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	10,831	11,347
Agriculture
Financing Receivable, Recorded Investment [Line Items]
Gross loans	28,673	26,966
Other
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,220	537
Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	480,545	461,126
Pass | Commercial
Financing Receivable, Recorded Investment [Line Items]
Gross loans	67,239	49,440
Pass | Commercial Real Estate | Construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	27,975	25,266
Pass | Commercial Real Estate | Farmland
Financing Receivable, Recorded Investment [Line Items]
Gross loans	63,761	61,672
Pass | Commercial Real Estate | Nonfarm nonresidential
Financing Receivable, Recorded Investment [Line Items]
Gross loans	107,808	111,426
Pass | Residential Real Estate | Multi-Family
Financing Receivable, Recorded Investment [Line Items]
Gross loans	34,093	31,526
Pass | Residential Real Estate | 1-4 Family
Financing Receivable, Recorded Investment [Line Items]
Gross loans	150,241	145,450
Pass | Consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	9,805	10,115
Pass | Agriculture
Financing Receivable, Recorded Investment [Line Items]
Gross loans	18,526	25,816
Pass | Other
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,097	415
Watch
Financing Receivable, Recorded Investment [Line Items]
Gross loans	76,876	68,200
Watch | Commercial
Financing Receivable, Recorded Investment [Line Items]
Gross loans	4,422	5,063
Watch | Commercial Real Estate | Construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	3,787	2,990
Watch | Commercial Real Estate | Farmland
Financing Receivable, Recorded Investment [Line Items]
Gross loans	6,834	7,922
Watch | Commercial Real Estate | Nonfarm nonresidential
Financing Receivable, Recorded Investment [Line Items]
Gross loans	26,755	21,017
Watch | Residential Real Estate | Multi-Family
Financing Receivable, Recorded Investment [Line Items]
Gross loans	5,090	6,039
Watch | Residential Real Estate | 1-4 Family
Financing Receivable, Recorded Investment [Line Items]
Gross loans	19,869	23,928
Watch | Consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	370	537
Watch | Agriculture
Financing Receivable, Recorded Investment [Line Items]
Gross loans	9,749	704
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,110	4,189
Special Mention | Commercial Real Estate | Nonfarm nonresidential
Financing Receivable, Recorded Investment [Line Items]
Gross loans	797	3,747
Special Mention | Residential Real Estate | 1-4 Family
Financing Receivable, Recorded Investment [Line Items]
Gross loans	12	131
Special Mention | Consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	301	311
Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	73,897	91,484
Substandard | Commercial
Financing Receivable, Recorded Investment [Line Items]
Gross loans	5,293	6,433
Substandard | Commercial Real Estate | Construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	5,031	4,917
Substandard | Commercial Real Estate | Farmland
Financing Receivable, Recorded Investment [Line Items]
Gross loans	7,353	7,825
Substandard | Commercial Real Estate | Nonfarm nonresidential
Financing Receivable, Recorded Investment [Line Items]
Gross loans	23,916	39,262
Substandard | Residential Real Estate | Multi-Family
Financing Receivable, Recorded Investment [Line Items]
Gross loans	3,967	4,326
Substandard | Residential Real Estate | 1-4 Family
Financing Receivable, Recorded Investment [Line Items]
Gross loans	27,461	27,769
Substandard | Consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	355	384
Substandard | Agriculture
Financing Receivable, Recorded Investment [Line Items]
Gross loans	398	446
Substandard | Other
Financing Receivable, Recorded Investment [Line Items]
Gross loans	$123	$122

Major_Categories_of_Other_Real

Major Categories of Other Real Estate Owned (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Real Estate Properties [Line Items]
Other Real Estate Owned, Gross	$44,110	$47,263
Valuation allowance	-492	-1,066	-208	-230
Other real estate owned	43,618	46,197	45,918	30,892
Commercial Real Estate | Construction, Land Development and Other Land
Real Estate Properties [Line Items]
Other Real Estate Owned, Gross	18,319	18,748
Commercial Real Estate | Farmland
Real Estate Properties [Line Items]
Other Real Estate Owned, Gross	256	669
Commercial Real Estate | Nonfarm nonresidential
Real Estate Properties [Line Items]
Other Real Estate Owned, Gross	14,592	14,860
Residential Real Estate | Multi-Family
Real Estate Properties [Line Items]
Other Real Estate Owned, Gross	4,700	4,988
Residential Real Estate | 1-4 Family
Real Estate Properties [Line Items]
Other Real Estate Owned, Gross	$6,243	$7,998

Other_Real_Estate_Owned_Valuat

Other Real Estate Owned Valuation Allowance Activity (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
SEC Schedule III, Real Estate, Write-down or Reserve [Line Items]
Beginning balance	$1,066	$230
Provision to allowance	300	250
Write-downs	-874	-272
Ending balance	$492	$208

Other_Real_Estate_Owned_Additi

Other Real Estate Owned - Additional Information (Detail) (Residential Real Estate, 1-4 Family, USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Residential Real Estate | 1-4 Family
Real Estate Properties [Line Items]
Properties in the process of foreclosure	$2.60	$3.60

Net_Activity_Relating_to_Other

Net Activity Relating to Other Real Estate Owned Activity (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Real Estate Properties [Line Items]
OREO as of January 1	$46,197,000	$30,892,000
Real estate acquired	347,000	17,351,000
Valuation adjustment	-300,000	-250,000
Gain/(loss) on sale	3,000
Proceeds from sale of properties	-2,629,000	-2,075,000
OREO as of March 31	43,618,000	45,918,000
Writedowns
Real Estate Properties [Line Items]
Valuation adjustment	($300,000)	($250,000)

Expenses_Related_to_Other_Real

Expenses Related to Other Real Estate Owned (Detail) (USD $)	3 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Real Estate Properties [Line Items]
Net (gain) loss on sales	($3)
Provision to allowance	300	250
Operating expense	436	412
Total	$733	$662	$5,800

Schedule_of_Deposit_Balances_b

Schedule of Deposit Balances by Category (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Deposits [Line Items]
Non-interest bearing	$108,011	$114,910
Interest checking	86,614	91,086
Money market	102,349	109,734
Savings	36,418	36,430
Certificates of deposit	597,117	574,681
Total deposits	$930,509	$926,841

Deposits_Additional_Informatio

Deposits - Additional Information (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Deposit Liabilities [Line Items]
Time deposits of $250,000 or more	$36.70	$34.40

Scheduled_Maturities_of_All_Ti

Scheduled Maturities of All Time Deposits (Detail) (USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified
Deposit Liabilities [Line Items]
Year 1	$371,065
Year 2	161,220
Year 3	11,268
Year 4	11,505
Year 5	42,058
Thereafter	1
Time Deposits, Total	$597,117

Advances_from_Federal_Home_Loa

Advances from Federal Home Loan Bank (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Monthly amortizing advances with fixed rates from 0.00% to 5.25% and maturities ranging from 2017 through 2033, averaging 2.85% at March 31, 2015 and 1.02% at December 31, 2014	$3,597	$15,752

Advances_from_Federal_Home_Loa1

Advances from Federal Home Loan Bank (Parenthetical) (Detail)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Advances from federal home loan bank, fixed rate from	0.00%
Advances from federal home loan bank, fixed rate to	5.25%
Advances from federal home loan bank, average rate	2.85%	1.02%
Advances from federal home loan bank, maturities from	2017
Advances from federal home loan bank, maturities through	2033

Advances_from_Federal_Home_Loa2

Advances from Federal Home Loan Bank - Additional Information (Detail) (Federal Home Loan Bank Advances, USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Prepayment Penalty	$0	$0
Additional borrowing capacity with the Federal Home Loan Bank	$23,400,000
Maximum
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
New advances maturity period	1 year

Fair_Values_Measurement_Additi

Fair Values Measurement - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Fair Value Measurements [Line Items]
Other debt security valuation, coupon rate	6.50%
Other debt security valuation, estimated current market rate	8.00%
Impaired loans, carrying amount	$1,900,000	$15,600,000	$18,400,000
Impaired loans, valuation allowance	254,000	2,500,000	752,000
Impaired loans, additional provision for loan loss	0	0
Other real estate owned, net carrying amount	43,600,000	45,900,000	46,200,000
Other real estate owned, write-downs	$300,000	$250,000
Other real estate owned, net | Routine Real Estate Collateral
Fair Value Measurements [Line Items]
Internal discount rate used in fair value evaluation	10.00%
Other real estate owned, net | Thin Trading Market or Specialized Collateral
Fair Value Measurements [Line Items]
Internal discount rate used in fair value evaluation	25.00%
Other real estate owned, net | Minimum
Fair Value Measurements [Line Items]
Estimated discounts for cost to sell	6.00%
Other real estate owned, net | Maximum
Fair Value Measurements [Line Items]
Estimated discounts for cost to sell	10.00%
Impaired Loans | Routine Real Estate Collateral
Fair Value Measurements [Line Items]
Internal discount rate used in fair value evaluation	10.00%
Impaired Loans | Thin Trading Market or Specialized Collateral
Fair Value Measurements [Line Items]
Internal discount rate used in fair value evaluation	25.00%
Impaired Loans | Minimum
Fair Value Measurements [Line Items]
Internal discount rate used in fair value evaluation	10.00%
Estimated discounts for cost to sell	6.00%
Impaired Loans | Maximum
Fair Value Measurements [Line Items]
Internal discount rate used in fair value evaluation	33.00%
Estimated discounts for cost to sell	10.00%

Financial_Assets_Measured_at_F

Financial Assets Measured at Fair Value on Recurring and Non Recurring Basis (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$157,290	$190,791
U.S. Government and federal agency | Debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	30,025	35,443
Agency mortgage-backed: residential | Debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	106,956	123,598
State and municipal | Debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	7,526	12,404
Corporate bonds | Debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	12,118	18,688
Other | Debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	665	658
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	156,625	190,133
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	665	658
Loans fair value	622,241	615,914
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	157,290	190,791
Fair Value, Measurements, Recurring | U.S. Government and federal agency | Debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	30,025	35,443
Fair Value, Measurements, Recurring | Agency mortgage-backed: residential | Debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	106,956	123,598
Fair Value, Measurements, Recurring | State and municipal | Debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	7,526	12,404
Fair Value, Measurements, Recurring | Corporate bonds | Debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	12,118	18,688
Fair Value, Measurements, Recurring | Other | Debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	665	658
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	156,625	190,133
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | U.S. Government and federal agency | Debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	30,025	35,443
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Agency mortgage-backed: residential | Debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	106,956	123,598
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | State and municipal | Debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	7,526	12,404
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Corporate bonds | Debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	12,118	18,688
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	665	658
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Other | Debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	665	658
Fair Value, Measurements, Nonrecurring | Other real estate owned, net | Commercial Real Estate | Construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned	18,114	18,325
Fair Value, Measurements, Nonrecurring | Other real estate owned, net | Commercial Real Estate | Farmland
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned	253	654
Fair Value, Measurements, Nonrecurring | Other real estate owned, net | Commercial Real Estate | Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned		14,525
Fair Value, Measurements, Nonrecurring | Other real estate owned, net | Commercial Real Estate | Nonfarm nonresidential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned	14,429
Fair Value, Measurements, Nonrecurring | Other real estate owned, net | Residential Real Estate | Multi-Family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned	4,648	4,875
Fair Value, Measurements, Nonrecurring | Other real estate owned, net | Residential Real Estate | 1-4 Family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned	6,174	7,818
Fair Value, Measurements, Nonrecurring | Impaired Loans | Commercial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans fair value	11	12
Fair Value, Measurements, Nonrecurring | Impaired Loans | Commercial Real Estate | Farmland
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans fair value		278
Fair Value, Measurements, Nonrecurring | Impaired Loans | Commercial Real Estate | Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans fair value		15,825
Fair Value, Measurements, Nonrecurring | Impaired Loans | Commercial Real Estate | Nonfarm nonresidential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans fair value	162
Fair Value, Measurements, Nonrecurring | Impaired Loans | Residential Real Estate | 1-4 Family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans fair value	1,568	1,635
Fair Value, Measurements, Nonrecurring | Impaired Loans | Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans fair value	8	31
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Other real estate owned, net | Commercial Real Estate | Construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned	18,114	18,325
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Other real estate owned, net | Commercial Real Estate | Farmland
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned	253	654
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Other real estate owned, net | Commercial Real Estate | Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned		14,525
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Other real estate owned, net | Commercial Real Estate | Nonfarm nonresidential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned	14,429
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Other real estate owned, net | Residential Real Estate | Multi-Family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned	4,648	4,875
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Other real estate owned, net | Residential Real Estate | 1-4 Family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Real Estate Owned	6,174	7,818
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Impaired Loans | Commercial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans fair value	11	12
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Impaired Loans | Commercial Real Estate | Farmland
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans fair value		278
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Impaired Loans | Commercial Real Estate | Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans fair value		15,825
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Impaired Loans | Commercial Real Estate | Nonfarm nonresidential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans fair value	162
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Impaired Loans | Residential Real Estate | 1-4 Family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans fair value	1,568	1,635
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Impaired Loans | Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans fair value	$8	$31

Reconciliation_of_all_Assets_M

Reconciliation of all Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs Level 3 (Detail) (Other, USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Other
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balances of recurring Level 3 assets at January 1	$658	$632
Included in other comprehensive income (loss)	7	12
Balance of recurring Level 3 assets at March 31	$665	$644

Qualitative_Information_About_

Qualitative Information About Level Three Fair Value Measurements for Financial Instruments Measured at Fair Value on Non-Recurring Basis (Detail) (Fair Value, Measurements, Nonrecurring, USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Impaired Loans | Commercial
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$11	$12
Valuation Technique(s)	Market value approach
Unobservable Input(s)	Adjustment for receivables and inventory discounts
Discount or capitalization rate	24.00%	24.00%
Impaired Loans | Commercial | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount or capitalization rate	16.00%	16.00%
Impaired Loans | Commercial | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount or capitalization rate	32.00%	32.00%
Impaired Loans | Commercial Real Estate
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	162	16,103
Adjustment for differences between the comparable sales	16.00%	14.00%
Valuation Technique(s)	Sales comparison approach
Unobservable Input(s)	Adjustment for differences between the comparable sales
Discount or capitalization rate	8.00%	8.00%
Impaired Loans | Commercial Real Estate | Income Approach Valuation Technique
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Valuation Technique(s)	Income approach
Unobservable Input(s)	Discount or capitalization rate
Impaired Loans | Commercial Real Estate | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Adjustment for differences between the comparable sales	0.00%	0.00%
Discount or capitalization rate	8.00%	8.00%
Impaired Loans | Commercial Real Estate | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Adjustment for differences between the comparable sales	62.00%	62.00%
Discount or capitalization rate	9.00%	9.00%
Impaired Loans | Residential Real Estate
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	1,568	1,635
Adjustment for differences between the comparable sales	11.00%	11.00%
Valuation Technique(s)	Sales comparison approach
Unobservable Input(s)	Adjustment for differences between the comparable sales
Impaired Loans | Residential Real Estate | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Adjustment for differences between the comparable sales	0.00%	0.00%
Impaired Loans | Residential Real Estate | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Adjustment for differences between the comparable sales	39.00%	39.00%
Other real estate owned, net | Commercial Real Estate
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	32,796	33,504
Adjustment for differences between the comparable sales	18.00%	18.00%
Valuation Technique(s)	Sales comparison approach
Unobservable Input(s)	Adjustment for differences between the comparable sales
Discount or capitalization rate	13.00%	13.00%
Other real estate owned, net | Commercial Real Estate | Income Approach Valuation Technique
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Valuation Technique(s)	Income approach
Unobservable Input(s)	Discount or capitalization rate
Other real estate owned, net | Commercial Real Estate | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Adjustment for differences between the comparable sales	0.00%	0.00%
Discount or capitalization rate	8.00%	9.00%
Other real estate owned, net | Commercial Real Estate | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Adjustment for differences between the comparable sales	45.00%	45.00%
Discount or capitalization rate	20.00%	20.00%
Other real estate owned, net | Residential Real Estate
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$10,822	$12,693
Adjustment for differences between the comparable sales	5.00%	6.00%
Valuation Technique(s)	Sales comparison approach
Unobservable Input(s)	Adjustment for differences between the comparable sales
Other real estate owned, net | Residential Real Estate | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Adjustment for differences between the comparable sales	0.00%	0.00%
Other real estate owned, net | Residential Real Estate | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Adjustment for differences between the comparable sales	10.00%	15.00%

Carrying_Amount_and_Estimated_

Carrying Amount and Estimated Fair Values of Financial Instruments (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Financial assets
Securities available for sale	$157,290	$190,791
Securities held to maturity	44,895	44,498
Quoted Prices In Active Markets for Identical Assets (Level 1)
Financial assets
Cash and cash equivalents	96,168	49,007
Financial liabilities
Deposits	108,011	114,910
Significant Other Observable Inputs (Level 2)
Financial assets
Cash and cash equivalents	13,603	31,173
Securities available for sale	156,625	190,133
Securities held to maturity	44,895	44,498
Loans held for sale		8,926
Accrued interest receivable	1,072	1,389
Financial liabilities
Deposits	817,396	804,508
Securities sold under agreements to repurchase	1,145	1,341
Federal Home Loan Bank advances	3,604	15,758
Accrued interest payable	606	751
Significant Unobservable Inputs (Level 3)
Financial assets
Securities available for sale	665	658
Loans, net	622,241	615,914
Accrued interest receivable	1,964	2,114
Financial liabilities
Accrued interest payable	2,258	2,107
Significant Unobservable Inputs (Level 3) | Subordinated capital notes
Financial liabilities
Subordinated capital notes	4,558	4,765
Significant Unobservable Inputs (Level 3) | Junior subordinated debentures
Financial liabilities
Subordinated capital notes	14,433	14,214
Carrying Amount
Financial assets
Cash and cash equivalents	109,771	80,180
Securities available for sale	157,290	190,791
Securities held to maturity	42,263	42,325
Federal Home Loan Bank stock	7,323	7,323
Loans held for sale		8,926
Loans, net	613,831	605,635
Accrued interest receivable	3,036	3,503
Financial liabilities
Deposits	930,509	926,841
Securities sold under agreements to repurchase	1,145	1,341
Federal Home Loan Bank advances	3,597	15,752
Accrued interest payable	2,864	2,858
Carrying Amount | Subordinated capital notes
Financial liabilities
Subordinated capital notes	4,725	4,950
Carrying Amount | Junior subordinated debentures
Financial liabilities
Subordinated capital notes	25,000	25,000
Fair Value
Financial assets
Cash and cash equivalents	109,771	80,180
Securities available for sale	157,290	190,791
Securities held to maturity	44,895	44,498
Loans held for sale		8,926
Loans, net	622,241	615,914
Accrued interest receivable	3,036	3,503
Financial liabilities
Deposits	925,407	919,418
Securities sold under agreements to repurchase	1,145	1,341
Federal Home Loan Bank advances	3,604	15,758
Accrued interest payable	2,864	2,858
Fair Value | Subordinated capital notes
Financial liabilities
Subordinated capital notes	4,558	4,765
Fair Value | Junior subordinated debentures
Financial liabilities
Subordinated capital notes	$14,433	$14,214

Deferred_Tax_Assets_and_Liabil

Deferred Tax Assets and Liabilities (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Deferred tax assets:
Net operating loss carry-forward	$32,067	$32,111
Allowance for loan losses	6,509	6,777
Other real estate owned write-down	9,899	10,000
Alternative minimum tax credit carry-forward	692	692
Net assets from acquisitions	670	668
Other than temporary impairment on securities	46	46
New market tax credit carry-forward	208	208
Nonaccrual loan interest	847	958
Amortization of non-compete agreements	13	14
Other	1,873	1,371
Deferred Tax Assets, Gross, Total	52,824	52,845
Deferred tax liabilities:
FHLB stock dividends	928	928
Fixed assets	248	264
Originated mortgage servicing rights	48	53
Net unrealized gain on securities	530	579
Other	668	373
Deferred Tax Liabilities, Net, Total	2,422	2,197
Net deferred tax assets before valuation allowance	50,402	50,648
Valuation allowance	-50,402	-50,648
Net deferred tax asset	$0	$0

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Income Taxes [Line Items]
Income tax benefit	$0	$0	$1,600,000
Interest and penalties	$0	$0

Stock_Plans_and_Stock_Based_Co2

Stock Plans and Stock Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares terminated	538,479
Stock-based compensation	$49,000	$133,000
Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	49,000
Unvested Shares | Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of unvested shares issued	712,000
Fair value of unvested shares issued per weighted-average share	$0.89
Service Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
New service-based restricted shares issued	800,000
Incremental compensation expense after modification	233,000
2006 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized	1,563,050
Unvested shares issued, net of forfeitures and vesting	1,056,243
Shares remaining available for issue	271,890
2006 Stock Incentive Plan | Unvested Shares | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
2006 Stock Incentive Plan | Unvested Shares | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	10 years
2006 Non-Employee Directors Stock Ownership Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested shares issued, net of forfeitures and vesting	5,052
Shares remaining available for issue	301,512
Restricted shares award, fair market value	$25,000
Unvested shares issued, net of forfeitures and vesting, issued	5,052
2006 Non-Employee Directors Stock Ownership Incentive Plan | Amendment
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized	700,000

Summary_of_Unvested_Share_Acti

Summary of Unvested Share Activity (Detail) (Unvested Shares, Stock Incentive Plan, USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Unvested Shares | Stock Incentive Plan
Shares
Outstanding, beginning	770,440	787,426
Granted	800,000	122,220
Vested	-63,063	-133,227
Terminated	-450,994
Forfeited	-140	-5,979
Outstanding, ending	1,056,243	770,440
Weighted Average Grant Price
Outstanding, beginning	$1.33	$1.56
Granted	$0.89	$0.93
Vested	$2	$2.20
Terminated	$1.25
Forfeited	$22.03	$4.21
Outstanding, ending	$0.99	$1.33

Summary_of_Unvested_Share_Acti1

Summary of Unvested Share Activity for Non-Employee Directors (Detail) (Unvested Shares, Non Employee Director, USD $)	12 Months Ended
	Dec. 31, 2014	Mar. 31, 2015
Unvested Shares | Non Employee Director
Shares
Outstanding, beginning	47,428	5,052
Granted	166,668
Vested	-154,222
Forfeited	-54,822
Outstanding, ending	5,052	5,052
Weighted Average Exercise Price
Outstanding, beginning	$1.69	$1.65
Granted	$0.90
Vested	$0.98
Forfeited	$1.29
Outstanding, ending	$1.65	$1.65

Unrecognized_Stock_Based_Compe

Unrecognized Stock Based Compensation Expense Related to Unvested Shares (Detail) (USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
April 2015 - December 2015	$282
2016	263
2017	158
2018	149
2019 & thereafter	$0

Computation_of_Basic_and_Dilut

Computation of Basic and Diluted Earnings Per Share (Detail) (USD $)	3 Months Ended		12 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Net income (loss)	$594	($287)	($11,200)
Less:
Earnings (loss) allocated to unvested shares	185	-97	3,200
Net income (loss) attributable to common shareholders	409	-976	19,400	-3,400
Basic
Weighted average common shares outstanding	17,493,397	12,021,313
Basic income (loss) per common share	$0.02	($0.08)
Diluted
Add: Dilutive effects of assumed exercises of common stock warrants	0	0
Weighted average common shares and potential common shares	17,493,397	12,021,313
Diluted loss per common share	$0.02	($0.08)
Unvested Shares
Less:
Earnings (loss) allocated to unvested shares	21	-70
Basic
Weighted average common shares including unvested common shares outstanding	25,419,523	13,210,930
Weighted average common shares outstanding	918,393	856,723
Preferred Stock Dividends
Less:
Preferred stock dividends		786
Series B Preferred Stock
Basic
Weighted average common shares outstanding	2,702,400
Series C Preferred Stock
Basic
Weighted average common shares outstanding		332,894
Series D Preferred Stock
Basic
Weighted average common shares outstanding	4,305,333
Preferred Stock
Less:
Earnings (loss) allocated to unvested shares	164	-27
Common Stock
Less:
Net income (loss) attributable to common shareholders	$409	($976)

Earnings_Loss_per_Share_Additi

Earnings (Loss) per Share - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Common Stock
Earnings Per Share Disclosure [Line Items]
Warrant exercise price	$15.88	$15.88
Nonvoting Common Stock
Earnings Per Share Disclosure [Line Items]
Warrant exercise price	$10.95	$10.95
Warrant | Common Stock
Earnings Per Share Disclosure [Line Items]
Shares/warrants of common stock not considered in computing diluted earnings per share	330,561	330,561
Warrant | Nonvoting Common Stock
Earnings Per Share Disclosure [Line Items]
Shares/warrants of common stock not considered in computing diluted earnings per share	650,544	1,449,459

Capital_Requirements_and_Restr2

Capital Requirements and Restrictions on Retained Earnings - Additional Information (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Oct. 31, 2012	Jun. 24, 2011
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Maximum asset for opt-out requirement in capital calculation	$250,000,000,000
Tier I leverage ratio, regulatory minimum	4.00%	4.00%
Total risk-based capital, regulatory minimum	8.00%	8.00%
Tier 1 leverage ratio	4.13%	4.51%
Total risk-based capital	10.05%	10.61%
PBI Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier I leverage ratio, regulatory minimum	4.00%	4.00%
Tier 1 leverage ratio	5.84%	5.78%
Total risk-based capital	10.25%
Consent order
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier I leverage ratio, regulatory minimum			9.00%	9.00%
Total risk-based capital, regulatory minimum			12.00%	12.00%
Minimum substandard asset subject to risk position reduction				$1,000,000
Maximum asset growth rate, quarterly				5.00%
Maximum asset growth rate, annually				10.00%
Consent order | Construction and development loans
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Maximum concentration of loans to total risk based capital	75.00%			75.00%
Consent order | Non-owner occupied commercial real estate loans
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Maximum concentration of loans to total risk based capital				250.00%

Ratios_and_Amounts_of_Common_E

Ratios and Amounts of Common Equity Tier One, Tier One Capital and Total Capital to Risk-Adjusted Assets and Leverage Ratios (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total risk-based capital to risk-weighted assets, actual amount	$70,949	$73,595
Total common equity tier I risk-based capital to risk-weighted assets, actual amount	33,232
Tier I capital to risk-weighted assets, actual amount	41,513	46,459
Tier I capital to average assets, actual amount	41,513	46,459
Total risk-based capital to risk-weighted assets, actual ratio	10.05%	10.61%
Total common equity tier I risk-based capital to risk-weighted assets, actual ratio	4.71%
Tier I capital to risk-weighted assets, actual ratio	5.88%	6.70%
Tier I capital to average assets, actual ratio	4.13%	4.51%
Total risk-based capital to risk-weighted assets, for capital adequacy purposes, amount	56,459	55,483
Total common equity tier I risk-based capital to risk-weighted assets, for capital adequacy purposes, amount	31,758
Tier I capital to risk-weighted assets, for capital adequacy purposes, amount	42,344	27,741
Tier I capital to average assets, for capital adequacy purposes, amount	40,209	41,193
Total risk-based capital to risk-weighted assets, for capital adequacy purposes, ratio	8.00%	8.00%
Total common equity tier I risk-based capital to risk-weighted assets, for capital adequacy purposes, ratio	4.50%
Tier I capital to risk-weighted assets, for capital adequacy purposes, ratio	6.00%	4.00%
Tier I capital to average assets, for capital adequacy purposes, ratio	4.00%	4.00%
Porter Bancorp and PBI Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total risk-based capital to risk-weighted assets, actual amount	72,335	73,174
Total common equity tier I risk-based capital to risk-weighted assets, actual amount	58,672
Total risk-based capital to risk-weighted assets, actual ratio	10.25%	10.57%
Total common equity tier I risk-based capital to risk-weighted assets, actual ratio	8.32%
Total risk-based capital to risk-weighted assets, for capital adequacy purposes, amount	56,435	55,383
Total common equity tier I risk-based capital to risk-weighted assets, for capital adequacy purposes, amount	31,745
Total risk-based capital to risk-weighted assets, for capital adequacy purposes, ratio	8.00%	8.00%
Total common equity tier I risk-based capital to risk-weighted assets, for capital adequacy purposes, ratio	4.50%
Porter Bancorp
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier I capital to risk-weighted assets, actual amount	58,672	59,438
Tier I capital to risk-weighted assets, actual ratio	8.32%	8.59%
Tier I capital to risk-weighted assets, for capital adequacy purposes, amount	42,326	27,691
Tier I capital to risk-weighted assets, for capital adequacy purposes, ratio	6.00%	4.00%
PBI Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total risk-based capital to risk-weighted assets, actual amount	72,335
Tier I capital to average assets, actual amount	58,672	59,438
Total risk-based capital to risk-weighted assets, actual ratio	10.25%
Tier I capital to average assets, actual ratio	5.84%	5.78%
Tier I capital to average assets, for capital adequacy purposes, amount	$40,212	$41,143
Tier I capital to average assets, for capital adequacy purposes, ratio	4.00%	4.00%

Consent_Order_to_Achieve_the_M

Consent Order to Achieve the Minimum Capital Ratios (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Reconciliation of Stockholders' Equity to Regulatory Capital [Line Items]
Total capital to risk-weighted assets	$70,949	$73,595
Total capital to risk-weighted assets	10.05%	10.61%
Tier I capital to average assets	4.13%	4.51%
PBI Bank
Reconciliation of Stockholders' Equity to Regulatory Capital [Line Items]
Total capital to risk-weighted assets	72,335
Tier I capital to average assets	58,672
Total capital to risk-weighted assets	10.25%
Tier I capital to average assets	5.84%	5.78%
Total capital to risk-weighted assets	84,652
Tier I capital to average assets	$90,476
Total capital to risk-weighted assets	12.00%
Tier I capital to average assets	9.00%
PBI Bank | Tier I
Reconciliation of Stockholders' Equity to Regulatory Capital [Line Items]
Tier I capital to average assets	5.84%

Contingencies_Additional_Infor

Contingencies - Additional Information (Detail) (USD $)	0 Months Ended		3 Months Ended	0 Months Ended	1 Months Ended	12 Months Ended
	Dec. 26, 2013	Jun. 18, 2010	Mar. 31, 2015	Jul. 16, 2013	Jun. 30, 2009	Dec. 31, 2012
		Plaintiff
Commitments and Contingencies Disclosure [Line Items]
Accrued contingent liabilities			$2,200,000
Laws affected			Plaintiffs asserted claims of fraud, breach of fiduciary duty, breach of the duty of good faith and fair dealing, tortious interference with prospective business advantage and conspiracy to commit fraud, negligence, and conspiracy against the Bank.
Number of Plaintiffs		3
Original release of obligations			26,000,000
Loss Contingency damage sought by plaintiff, description			The plaintiff seeks damages in an amount in excess of $4,500,000, or the difference between the $5,000,016 purchase price and the value of the securities when sold by the plaintiff, plus interest at the applicable statutory rate, costs and reasonable attorneys' fees.
Alleged imprudent and disloyal purchase of company stock	40,000,000
Alleged approved seller financing percentage	100.00%
Compensatory Damages
Commitments and Contingencies Disclosure [Line Items]
Damages awarded to plaintiffs				1,515,000
Punitive Damages
Commitments and Contingencies Disclosure [Line Items]
Damages awarded to plaintiffs				5,500,000
AIT Laboratories Employee Stock Ownership Plan
Commitments and Contingencies Disclosure [Line Items]
ESOP purchase of all stock of AIT Holding Company					90,000,000
Minimum
Commitments and Contingencies Disclosure [Line Items]
Loss contingency damage sought by plaintiff						4,500,000
Maximum
Commitments and Contingencies Disclosure [Line Items]
Loss contingency damage sought by plaintiff						$5,000,016