Consolidated Balance Sheets (USD $)	Dec. 31, 2014	Dec. 31, 2013
Assets
Cash and due from banks	$ 6,427,536us-gaap_CashAndDueFromBanks	$ 2,796,331us-gaap_CashAndDueFromBanks
Interest-earning demand deposits in banks	3,184,102us-gaap_InterestBearingDepositsInBanks	3,302,539us-gaap_InterestBearingDepositsInBanks
Cash and cash equivalents	9,611,638	6,098,870
Available-for-sale securities:
Investment securities	55,264,976	60,638,942
Mortgage-backed securities	41,419,921	48,345,655
Other investments	73,766us-gaap_OtherInvestments	81,918us-gaap_OtherInvestments
Loans held for sale	235,600us-gaap_LoansReceivableHeldForSaleNet	262,461us-gaap_LoansReceivableHeldForSaleNet
Loans, net of allowance for loan losses of $2,956,264 and $3,406,434 at December 31, 2014 and 2013	184,718,612	180,639,502
Premises and equipment, net of accumulated depreciation of $5,742,785 and $7,096,401 at December 31, 2014 and 2013	4,945,983us-gaap_PropertyPlantAndEquipmentNet	5,178,978us-gaap_PropertyPlantAndEquipmentNet
Federal Home Loan Bank stock	1,113,800us-gaap_FederalHomeLoanBankStock	1,113,800us-gaap_FederalHomeLoanBankStock
Foreclosed assets held for sale, net	176,671us-gaap_ForeclosedAssets	281,918us-gaap_ForeclosedAssets
Cash surrender value of life insurance	6,912,917us-gaap_BankOwnedLifeInsurance	6,815,059us-gaap_BankOwnedLifeInsurance
Interest receivable	1,713,243us-gaap_InterestReceivable	1,817,415us-gaap_InterestReceivable
Deferred income taxes	1,486,206us-gaap_DeferredTaxAssetsNet	2,703,110us-gaap_DeferredTaxAssetsNet
Mortgage servicing rights, net of valuation allowance of $56,969 and $73,392 as of December 31, 2014 and 2013	632,634jxsb_MortgageServicingRights	673,576jxsb_MortgageServicingRights
Goodwill	2,726,567us-gaap_Goodwill	2,726,567us-gaap_Goodwill
Other assets	892,118us-gaap_OtherAssets	1,041,005us-gaap_OtherAssets
Total assets	311,924,652us-gaap_Assets	318,418,776us-gaap_Assets
Deposits
Demand	30,976,025us-gaap_DemandDepositAccounts	29,976,167us-gaap_DemandDepositAccounts
Savings, NOW and money market	120,365,974	113,610,655
Time	94,599,563us-gaap_TimeDeposits	108,151,569us-gaap_TimeDeposits
Total deposits	245,941,562us-gaap_Deposits	251,738,391us-gaap_Deposits
Short-term borrowings	13,821,730us-gaap_ShortTermBorrowings	19,610,297us-gaap_ShortTermBorrowings
Deferred compensation	4,252,720	3,999,371
Advances from borrowers for taxes and insurance	962,762	857,814
Interest payable	166,052	210,226
Income taxes payable	200,781us-gaap_AccruedIncomeTaxes	34,621us-gaap_AccruedIncomeTaxes
Other liabilities	1,562,947us-gaap_OtherLiabilities	829,260us-gaap_OtherLiabilities
Total liabilities	266,908,554us-gaap_Liabilities	277,279,980us-gaap_Liabilities
Stockholders' Equity
Preferred stock, $.01 par value, authorized 10,000,000 shares; none issued and outstanding
Common stock, $.01 par value; authorized 25,000,000 shares; issued 1,799,483 - December 31, 2014 and 1,832,860 - December 31, 2013	17,995us-gaap_CommonStockValue	18,329us-gaap_CommonStockValue
Additional paid-in capital	13,900,743	14,561,085
Retained earnings	30,635,787	28,233,876
Accumulated other comprehensive income (loss)	711,483	(1,386,964)
Unallocated ESOP shares	(249,910)us-gaap_UnearnedESOPShares	(287,530)us-gaap_UnearnedESOPShares
Total stockholders' equity	45,016,098us-gaap_StockholdersEquity	41,138,796us-gaap_StockholdersEquity
Total liabilities and stockholders' equity	$ 311,924,652	$ 318,418,776

Represents net future revenues from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements for mortgage loans. Mortgage servicing rights may be obtained via (1) acquisition or assumption of a servicing obligation that does not relate to financial assets of the servicer or its consolidated affiliates; or (2) by originating loans and then (a) transferring the loans to a qualifying special purpose entity in a transaction that meets the necessary transfer and classification requirements, or (b) transferring the loans in a transaction that meets the requirements for sale accounting.

No definition available.