$FSFG
First Savings Financial Group, Inc. Stock $fsfg

$fsfg Overview Financials Valuation SEC Filings Company Website

2018 Q3 Form 10-Q Financial Statement

#000114420418043388 Filed on August 09, 2018

Income Statement

Concept	2018 Q3	2018 Q2	2017 Q2
Revenue	$11.38M	$11.21M	$8.664M
YoY Change	26.13%	29.34%	16.73%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization
YoY Change
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$1.842M	$1.699M	$1.132M
YoY Change	44.93%	50.09%	1.52%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$3.710M	$4.373M	$3.029M
YoY Change	16.7%	44.37%	-240.1%
Income Tax	$1.359M	$748.0K	$586.0K
% Of Pretax Income	36.63%	17.1%	19.35%
Net Earnings	$2.944M	$3.677M	$2.443M
YoY Change	25.87%	50.51%	9.7%
Net Earnings / Revenue	25.87%	32.81%	28.2%
Basic Earnings Per Share	$0.76	$0.63	$1.10
Diluted Earnings Per Share	$1.15	$0.62	$1.04
COMMON SHARES
Basic Shares Outstanding	2.292M shares	2.275M shares	2.225M shares
Diluted Shares Outstanding		2.379M shares	2.352M shares

Balance Sheet

Concept	2018 Q3	2018 Q2	2017 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$42.27M	$38.00M	$41.09M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$13.01M	$12.61M
YoY Change	15.47%
Goodwill	$9.848M	$9.511M
YoY Change	24.09%
Intangibles	$1.727M	$2.463M
YoY Change	149.21%
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$1.034B	$1.035B	$874.1M
YoY Change	16.08%	18.45%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities
YoY Change
LONG-TERM LIABILITIES
Long-Term Debt
YoY Change
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities
YoY Change
TOTAL LIABILITIES
Total Short-Term Liabilities
Total Long-Term Liabilities
Total Liabilities	$934.2M	$936.5M
YoY Change	17.06%
SHAREHOLDERS EQUITY
Retained Earnings	$76.52M	$74.12M
YoY Change	13.23%
Common Stock	$27.66M	$27.64M	$27.78M
YoY Change	-0.6%	-0.52%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$5.269M	$5.269M	$5.878M
YoY Change	-10.36%	-10.36%
Treasury Stock Shares	$268.9K	268.9K shares	316.9K shares
Shareholders Equity	$98.81M	$97.64M	$91.32M
YoY Change
Total Liabilities & Shareholders Equity	$1.034B	$1.035B	$874.1M
YoY Change	16.08%	18.45%

Cashflow Statement

Concept	2018 Q3	2018 Q2	2017 Q2
OPERATING ACTIVITIES
Net Income	$2.944M	$3.677M	$2.443M
YoY Change	25.87%	50.51%	9.7%
Depreciation, Depletion And Amortization
YoY Change
Cash From Operating Activities
YoY Change
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities
YoY Change
Cash From Investing Activities
YoY Change
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities
YoY Change
NET CHANGE
Cash From Operating Activities
Cash From Investing Activities
Cash From Financing Activities
Net Change In Cash
YoY Change
FREE CASH FLOW
Cash From Operating Activities
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2018Q2	us-gaap	Profit Loss ProfitLoss	3677000	USD
CY2017Q2	us-gaap	Profit Loss ProfitLoss	2443000	USD
	us-gaap	Profit Loss ProfitLoss	9392000	USD
	us-gaap	Profit Loss ProfitLoss	6974000	USD
CY2018Q1	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	2116000	USD
CY2017Q1	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	783000	USD
CY2017Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	1389000	USD
CY2016Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	310000	USD
CY2018Q2	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	156827000	USD
CY2017Q3	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	96283000	USD
CY2008Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	203363	shares
CY2018Q2	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	155907	shares
CY2017Q3	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	161115	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0175	pure
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.41
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.44
CY2018Q2	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	171506000	USD
CY2017Q3	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	182068000	USD
CY2018Q2	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	430000	USD
CY2017Q2	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	274000	USD
	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	1297000	USD
	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	781000	USD
CY2018Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	3106000	USD
CY2017Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2443000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	8158000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	6974000	USD
CY2018Q2	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	8866000	USD
CY2017Q2	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	6908000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	24726000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	19781000	USD
	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	17265	shares
	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	1000	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0213	pure
	us-gaap	Employee Stock Ownership Plan Esop Weighted Average Purchase Price Of Shares Purchased EmployeeStockOwnershipPlanESOPWeightedAveragePurchasePriceOfSharesPurchased	10.00
CY2017Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	197529	shares
	us-gaap	Interest Paid Net InterestPaidNet	4348000	USD
	us-gaap	Interest Paid Net InterestPaidNet	3140000	USD
	fsfg	Cumulative Allocated Net Income CumulativeAllocatedNetIncome	1700000	USD
CY2018Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	9026000	USD
CY2017Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	8092000	USD
CY2018Q2	us-gaap	Servicing Asset At Fair Value Other Changes In Fair Value ServicingAssetAtFairValueOtherChangesInFairValue	-83000	USD
CY2017Q2	us-gaap	Servicing Asset At Fair Value Other Changes In Fair Value ServicingAssetAtFairValueOtherChangesInFairValue	-31000	USD
	us-gaap	Servicing Asset At Fair Value Other Changes In Fair Value ServicingAssetAtFairValueOtherChangesInFairValue	-223000	USD
	us-gaap	Servicing Asset At Fair Value Other Changes In Fair Value ServicingAssetAtFairValueOtherChangesInFairValue	-65000	USD
CY2018Q2	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	116830000	USD
CY2017Q3	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	70775000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	1762000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	301000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	9000	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.146	pure
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	26858	shares
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	55296	shares
	dei	Document Type DocumentType	10-Q
CY2018Q2	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	122017000	USD
CY2017Q3	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	90360000	USD
CY2018Q2	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs	-18000	USD
CY2017Q2	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs	0	USD
	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs	-18000	USD
	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs	0	USD
CY2018Q2	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2017Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2018Q2	us-gaap	Minority Interest Ownership Percentage By Noncontrolling Owners MinorityInterestOwnershipPercentageByNoncontrollingOwners	0.49	pure
CY2018Q2	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	1201000	USD
CY2017Q2	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	880000	USD
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	2787000	USD
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	2691000	USD
CY2018Q2	us-gaap	Cash And Due From Banks CashAndDueFromBanks	13725000	USD
CY2017Q3	us-gaap	Cash And Due From Banks CashAndDueFromBanks	11017000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-545000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	2307000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-3851000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-2309000	USD
CY2015Q3	fsfg	Capital Conservation Bufferpercentage CapitalConservationBufferpercentage	0.0	pure
CY2017Q3	fsfg	Capital Conservation Bufferpercentage CapitalConservationBufferpercentage	0.0125	pure
	dei	Amendment Flag AmendmentFlag	false
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	6456	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	6729	shares
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y6M
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	55296	shares
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1099000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1002000	USD
	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	509000	USD
	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	903000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-35000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	800000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-742000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-823000	USD
CY2018Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	24277000	USD
CY2017Q3	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	23242000	USD
CY2018Q2	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	920000	USD
CY2017Q2	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	754000	USD
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	2620000	USD
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	2082000	USD
CY2018Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2017Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.37
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.10
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.62
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.15
CY2018Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	2445000	USD
CY2017Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	1026000	USD
CY2018Q2	us-gaap	Deposits Retail DepositsRetail	124732000	USD
CY2017Q3	us-gaap	Deposits Retail DepositsRetail	123010000	USD
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4800	shares
CY2018Q2	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4800	shares
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	69000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	163000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	995000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	871000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	1200	shares
	fsfg	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Fair Value At Grant Date ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageFairValueAtGrantDate	6.13
	dei	Document Period End Date DocumentPeriodEndDate	2018-06-30
CY2018Q2	fsfg	Deposits Brokered DepositsBrokered	142842000	USD
CY2017Q3	fsfg	Deposits Brokered DepositsBrokered	106886000	USD
CY2018Q2	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2017Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2018Q2	us-gaap	Dividend Income Operating DividendIncomeOperating	107000	USD
CY2017Q2	us-gaap	Dividend Income Operating DividendIncomeOperating	79000	USD
	us-gaap	Dividend Income Operating DividendIncomeOperating	346000	USD
	us-gaap	Dividend Income Operating DividendIncomeOperating	235000	USD
CY2018Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	38002000	USD
CY2017Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	34259000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-513000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1487000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3112000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1506000	USD
CY2017Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	7532000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	21708000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	26283000	USD
CY2018Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	9507000	USD
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	150033	shares
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-118000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-516000	USD
	fsfg	Proceeds From Sale Of Foreclosed Real Estate Financed Through Loans ProceedsFromSaleOfForeclosedRealEstateFinancedThroughLoans	427000	USD
	fsfg	Proceeds From Sale Of Foreclosed Real Estate Financed Through Loans ProceedsFromSaleOfForeclosedRealEstateFinancedThroughLoans	189000	USD
CY2018Q2	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	3164000	USD
CY2017Q2	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	3930000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	6280000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	5468000	USD
CY2018Q2	us-gaap	Time Deposits At Carrying Value TimeDepositsAtCarryingValue	2756000	USD
CY2017Q3	us-gaap	Time Deposits At Carrying Value TimeDepositsAtCarryingValue	2435000	USD
CY2018Q2	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	112000	USD
CY2017Q2	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	43000	USD
	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	299000	USD
	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	105000	USD
CY2018Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2017Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2018Q2	us-gaap	Deposits Deposits	834754000	USD
CY2017Q3	us-gaap	Deposits Deposits	669382000	USD
CY2018Q2	fsfg	Financing Receivable Modifications Recorded Investment Accruing FinancingReceivableModificationsRecordedInvestmentAccruing	9389000	USD
CY2017Q3	fsfg	Financing Receivable Modifications Recorded Investment Accruing FinancingReceivableModificationsRecordedInvestmentAccruing	7041000	USD
CY2018Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	3106000	USD
CY2017Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	2443000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	8158000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	6974000	USD
	us-gaap	Stock Issued1 StockIssued1	387000	USD
	us-gaap	Stock Issued1 StockIssued1	293000	USD
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-7175000	USD
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-3436000	USD
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	150033	shares
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
CY2018Q2	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	1558000	USD
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	4585000	USD
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	2741000	USD
CY2017Q2	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	938000	USD
CY2017Q3	fsfg	Financing Receivable Modifications Recorded Investment Nonaccrual FinancingReceivableModificationsRecordedInvestmentNonaccrual	1360000	USD
CY2018Q2	fsfg	Financing Receivable Modifications Recorded Investment Nonaccrual FinancingReceivableModificationsRecordedInvestmentNonaccrual	98000	USD
CY2018Q2	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	1000	USD
CY2017Q3	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	17000	USD
CY2018Q2	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	0	Number
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	4	Number
CY2017Q2	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	2	Number
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	4	Number
CY2018Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	20000000	shares
CY2017Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	20000000	shares
CY2018Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	11206000	USD
CY2017Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	8664000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	30778000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	24894000	USD
CY2018Q2	us-gaap	Trading Securities TradingSecurities	0	USD
CY2017Q3	us-gaap	Trading Securities TradingSecurities	7175000	USD
CY2018Q2	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	571000	USD
CY2017Q2	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1234000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
	dei	Entity Registrant Name EntityRegistrantName	First Savings Financial Group Inc
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	101597	shares
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	87277000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	67128000	USD
CY2018Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	2593000	USD
CY2017Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	3930000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5046000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5468000	USD
CY2018Q2	us-gaap	Available For Sale Securities AvailableForSaleSecurities	208071000	USD
CY2017Q3	us-gaap	Available For Sale Securities AvailableForSaleSecurities	178099000	USD
CY2018Q2	fsfg	Number Of Securities Continuous Unrealized Loss Position Less Than Twelve Months NumberOfSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonths	95	Number
CY2017Q3	fsfg	Number Of Securities Continuous Unrealized Loss Position Less Than Twelve Months NumberOfSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonths	32000	pure
CY2018Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	2560907	shares
CY2017Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	2559307	shares
CY2018Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	4020000	USD
CY2018Q2	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	0	USD
	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	1987000	USD
CY2017Q2	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	124000	USD
	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	606000	USD
CY2014Q4	fsfg	Percentage Of Received Equity Interest PercentageOfReceivedEquityInterest	0.99	pure
CY2018Q2	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	9487000	USD
CY2017Q3	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	8401000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	94208000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	52145000	USD
	dei	Entity Central Index Key EntityCentralIndexKey	0001435508
CY2017Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	321000	USD
CY2018Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	266000	USD
CY2018Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	96662	shares
CY2017Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	121773	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	111382	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	121267	shares
CY2018Q2	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	3415000	USD
CY2017Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	3823000	USD
CY2014Q4	fsfg	Percentage Of Receive Operating Profit And Losses PercentageOfReceiveOperatingProfitAndLosses	0.99	pure
CY2018Q2	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	0	USD
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1967000	USD
CY2017Q2	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	124000	USD
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	609000	USD
CY2017Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	93115000	USD
CY2016Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	86580000	USD
CY2018Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	16587000	USD
CY2018Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	2292021	shares
CY2017Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	2242454	shares
CY2018Q2	fsfg	Number Of Securities Continuous Unrealized Loss Position More Than Twelve Months NumberOfSecuritiesContinuousUnrealizedLossPositionMoreThanTwelveMonths	23	Number
CY2017Q3	fsfg	Number Of Securities Continuous Unrealized Loss Position More Than Twelve Months NumberOfSecuritiesContinuousUnrealizedLossPositionMoreThanTwelveMonths	5	Number
CY2018Q2	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2687000	USD
CY2017Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2878000	USD
CY2018Q2	us-gaap	Interest Expense Deposits InterestExpenseDeposits	1222000	USD
CY2017Q2	us-gaap	Interest Expense Deposits InterestExpenseDeposits	689000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	2891000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	1930000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	10539000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	11634000	USD
CY2018Q2	us-gaap	Depreciation And Amortization DepreciationAndAmortization	361000	USD
CY2017Q2	us-gaap	Depreciation And Amortization DepreciationAndAmortization	289000	USD
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--09-30
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	4844000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	3083000	USD
CY2017Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	20.15
CY2018Q2	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	12336000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	10949000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	8864000	USD
CY2017Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	8092000	USD
CY2016Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	7122000	USD
CY2017Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	7718000	USD
CY2018Q2	us-gaap	Interest Expense Federal Funds Purchased InterestExpenseFederalFundsPurchased	0	USD
CY2017Q2	us-gaap	Interest Expense Federal Funds Purchased InterestExpenseFederalFundsPurchased	14000	USD
	us-gaap	Interest Expense Federal Funds Purchased InterestExpenseFederalFundsPurchased	0	USD
	us-gaap	Interest Expense Federal Funds Purchased InterestExpenseFederalFundsPurchased	21000	USD
CY2018Q2	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group Mortgage LoansReceivableHeldForSaleNetNotPartOfDisposalGroupMortgage	3002000	USD
CY2017Q3	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group Mortgage LoansReceivableHeldForSaleNetNotPartOfDisposalGroupMortgage	727000	USD
CY2018Q2	fsfg	Number Of Investment Positions With Unrealized Losses NumberOfInvestmentPositionsWithUnrealizedLosses	118	Number
CY2017Q3	fsfg	Number Of Investment Positions With Unrealized Losses NumberOfInvestmentPositionsWithUnrealizedLosses	37	Number
CY2017Q3	us-gaap	Principal Amount Outstanding On Loans Managed And Securitized PrincipalAmountOutstandingOnLoansManagedAndSecuritized	594339000	USD
CY2018Q2	us-gaap	Principal Amount Outstanding On Loans Managed And Securitized PrincipalAmountOutstandingOnLoansManagedAndSecuritized	702580000	USD
CY2018Q2	us-gaap	Treasury Stock Shares TreasuryStockShares	268886	shares
CY2017Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	316853	shares
CY2018Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	38449000	USD
CY2017Q3	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	171666000	USD
CY2018Q2	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	205916000	USD
CY2017Q3	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	1600000	USD
CY2018Q2	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	1500000	USD
CY2014Q4	fsfg	Investment Credit Available To Be Estimated InvestmentCreditAvailableToBeEstimated	4700000	USD
CY2017Q3	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	93000	USD
CY2018Q2	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	124000	USD
CY2018Q2	fsfg	Incremental Common Shares Attributable To Restricted Stock IncrementalCommonSharesAttributableToRestrictedStock	7226	shares
CY2017Q2	fsfg	Incremental Common Shares Attributable To Restricted Stock IncrementalCommonSharesAttributableToRestrictedStock	4777	shares
	fsfg	Incremental Common Shares Attributable To Restricted Stock IncrementalCommonSharesAttributableToRestrictedStock	6941	shares
	fsfg	Incremental Common Shares Attributable To Restricted Stock IncrementalCommonSharesAttributableToRestrictedStock	2388	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	63.23
	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	212000	USD
	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	168000	USD
	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2017Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	586000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1680000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1656000	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	696000	USD
CY2018Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2378839	shares
CY2017Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2351739	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2369710	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2340688	shares
CY2018Q2	fsfg	Financing Receivable Recorded Investment Nonperforming FinancingReceivableRecordedInvestmentNonperforming	3539000	USD
CY2017Q3	fsfg	Financing Receivable Recorded Investment Nonperforming FinancingReceivableRecordedInvestmentNonperforming	3916000	USD
CY2014Q4	us-gaap	Other Assets OtherAssets	4200000	USD
CY2018Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	3778000	USD
CY2017Q3	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	6789000	USD
CY2018Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	86206000	USD
CY2018Q2	fsfg	Interest Receivable Loans Receivable InterestReceivableLoansReceivable	2405000	USD
CY2017Q3	fsfg	Interest Receivable Loans Receivable InterestReceivableLoansReceivable	1907000	USD
CY2018Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	66478000	USD
CY2017Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	29029000	USD
CY2018Q2	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group Other LoansReceivableHeldForSaleNetNotPartOfDisposalGroupOther	22274000	USD
CY2017Q3	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group Other LoansReceivableHeldForSaleNetNotPartOfDisposalGroupOther	24908000	USD
CY2018Q2	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	1000	USD
CY2017Q2	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	1000	USD
	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	3000	USD
	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	3000	USD
CY2017Q2	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	321000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	1002000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	1099000	USD
CY2018Q1	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	266000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	12334000	USD
CY2017Q2	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	10698000	USD
	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	12187000	USD
	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	10965000	USD
	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	99000	USD
	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	30000	USD
	dei	Trading Symbol TradingSymbol	FSFG
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	13.54
	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	263000	USD
	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	345000	USD
CY2017Q2	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	89000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	122000	USD
CY2018Q1	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	152000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	260000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	192000	USD
CY2017Q2	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	66000	USD
CY2018Q2	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	476000	USD
CY2017Q2	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	428000	USD
	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	1601000	USD
	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	1232000	USD
CY2018Q2	us-gaap	Loans Receivable Net LoansReceivableNet	693858000	USD
CY2017Q3	us-gaap	Loans Receivable Net LoansReceivableNet	586456000	USD
CY2018Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	17431000	USD
CY2017Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	4030000	USD
CY2017Q3	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	209000	USD
CY2018Q2	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	304000	USD
CY2017Q3	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	356000	USD
CY2018Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1623000	USD
CY2018Q2	us-gaap	Reclassification To Unappropriated Retained Earnings ReclassificationToUnappropriatedRetainedEarnings	0	USD
CY2017Q1	fsfg	Investment Tax Credit Percentage InvestmentTaxCreditPercentage	0.9	pure
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.31
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.04
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.44
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.98
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	56.56
CY2018Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	2292021	shares
CY2017Q2	us-gaap	Assets Assets	874082000	USD
CY2018Q2	us-gaap	Assets Assets	1035346000	USD
CY2018Q2	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	4000	USD
	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	63000	USD
CY2017Q2	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	3000	USD
	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	13000	USD
	us-gaap	Other Than Temporary Impairment Loss Debt Securities Available For Sale OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale	0	USD
CY2017Q1	fsfg	Historical Tax Credit On Investment HistoricalTaxCreditOnInvestment	5000000	USD
CY2018Q2	us-gaap	Available For Sale Securities Equity Securities AvailableForSaleSecuritiesEquitySecurities	208071000	USD
CY2017Q3	us-gaap	Available For Sale Securities Equity Securities AvailableForSaleSecuritiesEquitySecurities	178099000	USD
CY2018Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	4077000	USD
CY2018Q2	us-gaap	Notes Receivable Net NotesReceivableNet	705289000	USD
CY2017Q3	us-gaap	Notes Receivable Net NotesReceivableNet	596455000	USD
CY2018Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	83909000	USD
CY2017Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	33059000	USD
CY2018Q2	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	9621000	USD
CY2017Q3	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	6936000	USD
CY2018Q2	us-gaap	Interest Expense InterestExpense	1699000	USD
CY2017Q2	us-gaap	Interest Expense InterestExpense	1132000	USD
	us-gaap	Interest Expense InterestExpense	4495000	USD
	us-gaap	Interest Expense InterestExpense	3186000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	63000	USD
CY2017Q2	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	22000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	95000	USD
CY2018Q1	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	48000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	1170000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	325000	USD
	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	0	USD
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	24.88
	us-gaap	Noninterest Income Other NoninterestIncomeOther	0	USD
CY2018Q2	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	699021000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	347000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	23000	USD
CY2018Q2	us-gaap	Interest Bearing Domestic Deposit Time Deposits InterestBearingDomesticDepositTimeDeposits	2756000	USD
CY2017Q3	us-gaap	Interest Bearing Domestic Deposit Time Deposits InterestBearingDomesticDepositTimeDeposits	2435000	USD
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	15.78
	fsfg	Net Gain Or Loss On Sale Of Premises Equipment And Real Estate Development NetGainOrLossOnSaleOfPremisesEquipmentAndRealEstateDevelopment	20000	USD
	us-gaap	Noninterest Income Other NoninterestIncomeOther	189000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	369000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	1214000	USD
CY2018Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	9026000	USD
CY2018Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	9026000	USD
CY2017Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	7995000	USD
CY2017Q3	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	5588000	USD
CY2018Q2	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	6268000	USD
CY2018Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	12608000	USD
CY2017Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	11270000	USD
CY2018Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	875000	USD
CY2017Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	322000	USD
CY2018Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	17066000	USD
CY2017Q1	fsfg	Increase In Equity Investment IncreaseInEquityInvestment	4500000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	999000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	915000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	325000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	318000	USD
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	24.88
	fsfg	Additional Historical Tax Credit On Investment AdditionalHistoricalTaxCreditOnInvestment	249000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	313000	USD
CY2017Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	428000	USD
CY2018Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	39119000	USD
CY2018Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	748000	USD
CY2017Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	34000	USD
CY2017Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	10864000	USD
CY2018Q2	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	12804000	USD
CY2018Q2	us-gaap	Real Estate Investments Other RealEstateInvestmentsOther	64000	USD
CY2017Q3	us-gaap	Real Estate Investments Other RealEstateInvestmentsOther	852000	USD
CY2017Q3	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	590867000	USD
	fsfg	Net Gain Or Loss On Sale Of Premises Equipment And Real Estate Development NetGainOrLossOnSaleOfPremisesEquipmentAndRealEstateDevelopment	30000	USD
	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	-5000	USD
	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	530000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	657000	USD
CY2017Q2	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	494000	USD
	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	495000	USD
CY2017Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	23000	USD
CY2018Q2	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	347000	USD
CY2018Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	9241000	USD
CY2017Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	7211000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	25184000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	20706000	USD
CY2018Q2	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	692485000	USD
CY2017Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	585591000	USD
CY2018Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	1623000	USD
CY2018Q2	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	693858000	USD
CY2017Q3	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	586456000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	992000	USD
CY2018Q2	us-gaap	Unrealized Gain Loss On Securities UnrealizedGainLossOnSecurities	51000	USD
CY2018Q2	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	19861000	USD
CY2017Q3	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	18297000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	13550000	USD
CY2017Q3	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	356000	USD
CY2018Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	87347000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	0	USD
CY2017Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	0	USD
CY2018Q2	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	702580000	USD
CY2017Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	594339000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	161000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	125000	USD
CY2017Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	3306000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	3000000	USD
CY2018Q2	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	8679000	USD
CY2017Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	8069000	USD
	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	0	USD
CY2017Q2	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	0	USD
CY2018Q2	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	0	USD
	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	0	USD
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y6M
	us-gaap	Income Tax Credits And Adjustments IncomeTaxCreditsAndAdjustments	340000	USD
	us-gaap	Income Tax Credits And Adjustments IncomeTaxCreditsAndAdjustments	-226000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	10864000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	12804000	USD
CY2018Q2	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	2107000	USD
CY2017Q3	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	1491000	USD
CY2018Q2	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	74000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	238000	USD
CY2018Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	9026000	USD
CY2017Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	8092000	USD
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	750000	USD
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	355000	USD
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P4Y6M
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	883000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1293000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	11318000	USD
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	13458	shares
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P2Y6M
CY2018Q2	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	99000	USD
CY2017Q2	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	30000	USD
	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	99000	USD
	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	30000	USD
CY2018Q2	us-gaap	Goodwill Goodwill	9511000	USD
CY2017Q3	us-gaap	Goodwill Goodwill	7936000	USD
CY2018Q2	fsfg	Securities And Interest Bearing Time Deposits Acquired Fair Value SecuritiesAndInterestBearingTimeDepositsAcquiredFairValue	35000000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	929000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	19972000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-5745000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	3453	USD
CY2018Q2	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	9621000	USD
CY2017Q3	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	6936000	USD
CY2018Q2	us-gaap	Other Than Temporary Impairment Loss Debt Securities Available For Sale OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale	95000	USD
CY2017Q2	us-gaap	Other Than Temporary Impairment Loss Debt Securities Available For Sale OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale	0	USD
	us-gaap	Other Than Temporary Impairment Loss Debt Securities Available For Sale OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale	95000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	389000	USD
CY2018Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	2463000	USD
CY2017Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	693000	USD
CY2018Q2	us-gaap	Trading Securities Realized Gain Loss TradingSecuritiesRealizedGainLoss	-48000	USD
CY2017Q2	us-gaap	Trading Securities Realized Gain Loss TradingSecuritiesRealizedGainLoss	184000	USD
	us-gaap	Trading Securities Realized Gain Loss TradingSecuritiesRealizedGainLoss	43000	USD
	us-gaap	Trading Securities Realized Gain Loss TradingSecuritiesRealizedGainLoss	113000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	12991000	USD
CY2017Q2	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	11192000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	12682000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	11495000	USD
CY2017Q3	us-gaap	Interest Receivable InterestReceivable	3398000	USD
CY2018Q2	us-gaap	Interest Receivable InterestReceivable	4512000	USD
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	7293	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	263000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	345000	USD
CY2017Q2	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	89000	USD
CY2018Q2	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	122000	USD
CY2018Q2	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	91000	USD
CY2017Q2	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	104000	USD
	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	259000	USD
	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	342000	USD
CY2018Q2	us-gaap	Other Assets OtherAssets	6056000	USD
CY2017Q3	us-gaap	Other Assets OtherAssets	4814000	USD
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	7293	USD
	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	-490000	USD
	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	-445000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	266000	USD
CY2017Q3	us-gaap	Assets Assets	891133000	USD
CY2018Q2	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	17000	USD
	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	50000	USD
CY2017Q2	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	16000	USD
	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	39000	USD
	fsfg	Proceeds From Sale Of Interest Bearing Time Deposits ProceedsFromSaleOfInterestBearingTimeDeposits	2741000	USD
	fsfg	Proceeds From Sale Of Interest Bearing Time Deposits ProceedsFromSaleOfInterestBearingTimeDeposits	0	USD
CY2018Q2	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	5864	USD
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	1111000	USD
	fsfg	Proceeds From Maturities Of Interestbearing Time Deposit ProceedsFromMaturitiesOfInterestbearingTimeDeposit	1245000	USD
	fsfg	Proceeds From Maturities Of Interestbearing Time Deposit ProceedsFromMaturitiesOfInterestbearingTimeDeposit	990000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	1044000	USD
CY2018Q2	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	1351000	USD
CY2017Q3	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	1348000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	44482000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	26422000	USD
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	431000	USD
CY2018Q2	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	112000	USD
CY2017Q2	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	105000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	325000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	318000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	37315000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	4255000	USD
CY2017Q3	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	118065000	USD
CY2018Q2	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	90000000	USD
CY2018Q2	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	677927000	USD
CY2017Q3	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	573099000	USD
CY2018Q2	us-gaap	Noninterest Income Other NoninterestIncomeOther	0	USD
CY2017Q2	us-gaap	Noninterest Income Other NoninterestIncomeOther	0	USD
	us-gaap	Noninterest Income Other NoninterestIncomeOther	189000	USD
CY2018Q2	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	428000	USD
CY2017Q3	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	283000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1280000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	2830000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	150000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	139000	USD
CY2017Q3	us-gaap	Advance Payments By Borrowers For Taxes And Insurance AdvancePaymentsByBorrowersForTaxesAndInsurance	1212000	USD
CY2018Q2	us-gaap	Advance Payments By Borrowers For Taxes And Insurance AdvancePaymentsByBorrowersForTaxesAndInsurance	808000	USD
CY2018Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	-340000	USD
CY2017Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	0	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	-340000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	226000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Mortgage Backed Securities Mbs ProceedsFromMaturitiesPrepaymentsAndCallsOfMortgageBackedSecuritiesMBS	11542000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Mortgage Backed Securities Mbs ProceedsFromMaturitiesPrepaymentsAndCallsOfMortgageBackedSecuritiesMBS	13047000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	74357000	USD
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	48644000	USD
CY2018Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	5113000	USD
CY2017Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	3837000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	13532000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	11035000	USD
	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	-21000	USD
	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	0	USD
CY2018Q2	us-gaap	Occupancy Net OccupancyNet	894000	USD
CY2017Q2	us-gaap	Occupancy Net OccupancyNet	699000	USD
	us-gaap	Occupancy Net OccupancyNet	2559000	USD
	us-gaap	Occupancy Net OccupancyNet	1990000	USD
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	2562000	USD
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	0	USD
CY2018Q2	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	9136000	USD
CY2017Q3	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	7728000	USD
CY2018Q2	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	408000	USD
CY2017Q2	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	329000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	1979000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	1031000	USD
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	540000	USD
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2018Q2	us-gaap	Advertising Expense AdvertisingExpense	162000	USD
CY2017Q2	us-gaap	Advertising Expense AdvertisingExpense	126000	USD
	us-gaap	Advertising Expense AdvertisingExpense	457000	USD
	us-gaap	Advertising Expense AdvertisingExpense	363000	USD
CY2018Q2	us-gaap	Liabilities Liabilities	936477000	USD
CY2017Q3	us-gaap	Liabilities Liabilities	798018000	USD
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	606000	USD
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	186000	USD
CY2018Q2	us-gaap	Professional Fees ProfessionalFees	370000	USD
CY2017Q2	us-gaap	Professional Fees ProfessionalFees	419000	USD
	us-gaap	Professional Fees ProfessionalFees	1236000	USD
	us-gaap	Professional Fees ProfessionalFees	919000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	918000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	389000	USD
CY2018Q2	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	135000	USD
CY2017Q2	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	113000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	382000	USD
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	342000	USD
CY2018Q2	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2017Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
	fsfg	Proceeds From Sale Of Premises Equipment And Real Estate Development ProceedsFromSaleOfPremisesEquipmentAndRealEstateDevelopment	20000	USD
	fsfg	Proceeds From Sale Of Premises Equipment And Real Estate Development ProceedsFromSaleOfPremisesEquipmentAndRealEstateDevelopment	19000	USD
CY2018Q2	us-gaap	Common Stock Value CommonStockValue	26000	USD
CY2017Q3	us-gaap	Common Stock Value CommonStockValue	25000	USD
CY2018Q2	us-gaap	Profit Loss From Real Estate Operations ProfitLossFromRealEstateOperations	-7000	USD
CY2017Q2	us-gaap	Profit Loss From Real Estate Operations ProfitLossFromRealEstateOperations	14000	USD
	us-gaap	Profit Loss From Real Estate Operations ProfitLossFromRealEstateOperations	171000	USD
	us-gaap	Profit Loss From Real Estate Operations ProfitLossFromRealEstateOperations	123000	USD
	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	6667000	USD
	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2018Q2	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1033000	USD
CY2017Q2	us-gaap	Other Noninterest Expense OtherNoninterestExpense	796000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2889000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2354000	USD
CY2018Q2	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	27612000	USD
CY2017Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	27798000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-60682000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-54434000	USD
CY2018Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	74123000	USD
CY2017Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	67583000	USD
CY2018Q2	us-gaap	Noninterest Expense NoninterestExpense	8122000	USD
CY2017Q2	us-gaap	Noninterest Expense NoninterestExpense	6305000	USD
	us-gaap	Noninterest Expense NoninterestExpense	22863000	USD
	us-gaap	Noninterest Expense NoninterestExpense	17911000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	4373000	USD
CY2017Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	3029000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	11048000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	8654000	USD
CY2018Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	1665000	USD
CY2017Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	4158000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	73607000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	94433000	USD
CY2018Q2	us-gaap	Deferred Compensation Equity DeferredCompensationEquity	517000	USD
CY2017Q3	us-gaap	Deferred Compensation Equity DeferredCompensationEquity	571000	USD
	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	3000	USD
	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	2000	USD
CY2018Q2	us-gaap	Treasury Stock Value TreasuryStockValue	5269000	USD
CY2017Q3	us-gaap	Treasury Stock Value TreasuryStockValue	5878000	USD
	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-18065000	USD
	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-21633000	USD
CY2018Q2	us-gaap	Stockholders Equity StockholdersEquity	97640000	USD
CY2017Q3	us-gaap	Stockholders Equity StockholdersEquity	93115000	USD
CY2018Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	571000	USD
CY2017Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1234000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	209500000	USD
	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	15000000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	3106000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	2443000	USD
	us-gaap	Net Income Loss NetIncomeLoss	8158000	USD
	us-gaap	Net Income Loss NetIncomeLoss	6974000	USD
CY2018Q2	us-gaap	Minority Interest MinorityInterest	1229000	USD
CY2017Q3	us-gaap	Minority Interest MinorityInterest	0	USD
	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	219500000	USD
	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	15000000	USD
CY2018Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	98869000	USD
	us-gaap	Increase Decrease In Advance Payments By Borrowers For Taxes And Insurance IncreaseDecreaseInAdvancePaymentsByBorrowersForTaxesAndInsurance	-404000	USD
	us-gaap	Increase Decrease In Advance Payments By Borrowers For Taxes And Insurance IncreaseDecreaseInAdvancePaymentsByBorrowersForTaxesAndInsurance	-22000	USD
CY2018Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1035346000	USD
CY2017Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	891133000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	362000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	62000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	46000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	999000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	915000	USD
CY2018Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2274951	shares
CY2017Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2225189	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2251387	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2217033	shares
	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	0	USD
CY2018Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2378839	shares
CY2017Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2351739	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2369710	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2340688	shares
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	3743000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	11748000	USD
CY2018Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2017Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.14
CY2016Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	29342000	USD
CY2017Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	41090000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-510000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1507000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-3109000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-1486000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	99000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	30000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	99000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	30000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	26000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	10000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	26000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	10000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	73000	USD
CY2017Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	20000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	73000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	20000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	433000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	294000	USD
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	787000	USD
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	702000	USD
CY2018Q2	fsfg	Gain Loss On Sales Of Securities Net GainLossOnSalesOfSecuritiesNet	99000	USD
	fsfg	Gain Loss On Sales Of Securities Net GainLossOnSalesOfSecuritiesNet	99000	USD
	fsfg	Gain Loss On Sales Of Securities Net GainLossOnSalesOfSecuritiesNet	66000	USD
CY2018Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	637000	USD
CY2017Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	355000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1609000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1098000	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	144000	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	70000	USD
CY2017Q2	fsfg	Gain Loss On Sales Of Securities Net GainLossOnSalesOfSecuritiesNet	96000	USD
	fsfg	Impairment Losses In Non Interest Income ImpairmentLossesInNonInterestIncome	226000	USD
CY2018Q2	us-gaap	Other Comprehensive Loss Held To Maturity Security Reclassification Adjustment From Aoci For Noncredit Portion Of Otti Tax OtherComprehensiveLossHeldToMaturitySecurityReclassificationAdjustmentFromAociForNoncreditPortionOfOttiTax	25000	USD
CY2017Q2	us-gaap	Other Comprehensive Loss Held To Maturity Security Reclassification Adjustment From Aoci For Noncredit Portion Of Otti Tax OtherComprehensiveLossHeldToMaturitySecurityReclassificationAdjustmentFromAociForNoncreditPortionOfOttiTax	0	USD
	us-gaap	Other Comprehensive Loss Held To Maturity Security Reclassification Adjustment From Aoci For Noncredit Portion Of Otti Tax OtherComprehensiveLossHeldToMaturitySecurityReclassificationAdjustmentFromAociForNoncreditPortionOfOttiTax	25000	USD
	us-gaap	Other Comprehensive Loss Held To Maturity Security Reclassification Adjustment From Aoci For Noncredit Portion Of Otti Tax OtherComprehensiveLossHeldToMaturitySecurityReclassificationAdjustmentFromAociForNoncreditPortionOfOttiTax	0	USD
CY2018Q2	us-gaap	Noninterest Income NoninterestIncome	3254000	USD
CY2017Q2	us-gaap	Noninterest Income NoninterestIncome	2123000	USD
	us-gaap	Noninterest Income NoninterestIncome	8727000	USD
	us-gaap	Noninterest Income NoninterestIncome	5859000	USD
CY2017Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	91319000	USD
	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	18000	USD
	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	0	USD
CY2017Q2	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	0	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	44453000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	71927000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	394000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	755000	USD
CY2018Q2	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	18000	USD
CY2018Q2	fsfg	Income Related To Distributions From Historic Tax Credit Entity IncomeRelatedToDistributionsFromHistoricTaxCreditEntity	340000	USD
	fsfg	Income Related To Distributions From Historic Tax Credit Entity IncomeRelatedToDistributionsFromHistoricTaxCreditEntity	340000	USD
CY2018Q2	us-gaap	Other Comprehensive Loss Held To Maturity Security Otti After Adjustments Tax OtherComprehensiveLossHeldToMaturitySecurityOttiAfterAdjustmentsTax	70000	USD
CY2017Q2	us-gaap	Other Comprehensive Loss Held To Maturity Security Otti After Adjustments Tax OtherComprehensiveLossHeldToMaturitySecurityOttiAfterAdjustmentsTax	0	USD
	us-gaap	Other Comprehensive Loss Held To Maturity Security Otti After Adjustments Tax OtherComprehensiveLossHeldToMaturitySecurityOttiAfterAdjustmentsTax	70000	USD
	us-gaap	Other Comprehensive Loss Held To Maturity Security Otti After Adjustments Tax OtherComprehensiveLossHeldToMaturitySecurityOttiAfterAdjustmentsTax	0	USD

Files In Submission

Name	View Source	Status
0001144204-18-043388-index-headers.html	Edgar Link	pending
0001144204-18-043388-index.html	Edgar Link	pending
0001144204-18-043388.txt	Edgar Link	pending
0001144204-18-043388-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
fsfg-20180630.xml	Edgar Link	completed
fsfg-20180630.xsd	Edgar Link	pending
fsfg-20180630_cal.xml	Edgar Link	unprocessable
fsfg-20180630_def.xml	Edgar Link	unprocessable
fsfg-20180630_lab.xml	Edgar Link	unprocessable
fsfg-20180630_pre.xml	Edgar Link	unprocessable
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
tv500265_10q.htm	Edgar Link	pending
tv500265_ex31-1.htm	Edgar Link	pending
tv500265_ex31-2.htm	Edgar Link	pending
tv500265_ex32-1.htm	Edgar Link	pending
tv500265_ex32-2.htm	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$FSFG
First Savings Financial Group, Inc. Stock $fsfg

2018 Q3 Form 10-Q Financial Statement

#000114420418043388 Filed on August 09, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FSFG First Savings Financial Group, Inc. Stock $fsfg

2018 Q3 Form 10-Q Financial Statement

#000114420418043388 Filed on August 09, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FSFG
First Savings Financial Group, Inc. Stock $fsfg