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Loans receivable (Details 1) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Balance at beginning of period | $ 1,476 | $ 1,568 | $ 1,515 | $ 1,568
Allowance for Loan and Lease Losses, Provision for loan losses | 52 | 0 | 56 | 11
Allowance for Loan and Lease Losses, Loans charged off | (57) | (2) | (100) | (13)
Allowance for Loan and Lease Losses, Recoveries | 2 | 2 | 2 | 2
Balance at end of period | 1,473 | 1,568 | 1,473 | 1,568
Residential Real Estate One To Four Family [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Balance at beginning of period | 803 | 1,060 | 862 | 1,059
Allowance for Loan and Lease Losses, Provision for loan losses | 50 | (15) | 34 | (3)
Allowance for Loan and Lease Losses, Loans charged off | (52) | (2) | (95) | (13)
Allowance for Loan and Lease Losses, Recoveries | 0 | 2 | 0 | 2
Balance at end of period | 801 | 1,045 | 801 | 1,045
Residential Real Estate Multi Family [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Balance at beginning of period | 208 | 97 | 192 | 94
Allowance for Loan and Lease Losses, Provision for loan losses | 3 | (1) | 19 | 2
Allowance for Loan and Lease Losses, Loans charged off | 0 | 0 | 0 | 0
Allowance for Loan and Lease Losses, Recoveries | 0 | 0 | 0 | 0
Balance at end of period | 211 | 96 | 211 | 96
Residential Real Estate Construction [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Balance at beginning of period | 5 | 16 | 5 | 21
Allowance for Loan and Lease Losses, Provision for loan losses | (1) | (2) | (1) | (7)
Allowance for Loan and Lease Losses, Loans charged off | 0 | 0 | 0 | 0
Allowance for Loan and Lease Losses, Recoveries | 0 | 0 | 0 | 0
Balance at end of period | 4 | 14 | 4 | 14
Land [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Balance at beginning of period | 2 | 8 | 2 | 7
Allowance for Loan and Lease Losses, Provision for loan losses | 1 | 0 | 1 | 1
Allowance for Loan and Lease Losses, Loans charged off | 0 | 0 | 0 | 0
Allowance for Loan and Lease Losses, Recoveries | 0 | 0 | 0 | 0
Balance at end of period | 3 | 8 | 3 | 8
Non residential real estate [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Balance at beginning of period | 222 | 122 | 217 | 121
Allowance for Loan and Lease Losses, Provision for loan losses | 8 | 21 | 13 | 22
Allowance for Loan and Lease Losses, Loans charged off | 0 | 0 | 0 | 0
Allowance for Loan and Lease Losses, Recoveries | 0 | 0 | 0 | 0
Balance at end of period | 230 | 143 | 230 | 143
Commercial nonmortgage [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Balance at beginning of period | 15 | 10 | 18 | 10
Allowance for Loan and Lease Losses, Provision for loan losses | (11) | 0 | (14) | 0
Allowance for Loan and Lease Losses, Loans charged off | 0 | 0 | 0 | 0
Allowance for Loan and Lease Losses, Recoveries | 0 | 0 | 0 | 0
Balance at end of period | 4 | 10 | 4 | 10
Farm [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Balance at beginning of period | 4 | 9 | 3 | 9
Allowance for Loan and Lease Losses, Provision for loan losses | 0 | 0 | 1 | 0
Allowance for Loan and Lease Losses, Loans charged off | 0 | 0 | 0 | 0
Allowance for Loan and Lease Losses, Recoveries | 0 | 0 | 0 | 0
Balance at end of period | 4 | 9 | 4 | 9
Loans on deposits [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Balance at beginning of period | 4 | 13 | 4 | 13
Allowance for Loan and Lease Losses, Provision for loan losses | (1) | (2) | (1) | (2)
Allowance for Loan and Lease Losses, Loans charged off | 0 | 0 | 0 | 0
Allowance for Loan and Lease Losses, Recoveries | 0 | 0 | 0 | 0
Balance at end of period | 3 | 11 | 3 | 11
Home equity [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Balance at beginning of period | 12 | 31 | 11 | 31
Allowance for Loan and Lease Losses, Provision for loan losses | 0 | (1) | 1 | (1)
Allowance for Loan and Lease Losses, Loans charged off | 0 | 0 | 0 | 0
Allowance for Loan and Lease Losses, Recoveries | 0 | 0 | 0 | 0
Balance at end of period | 12 | 30 | 12 | 30
Unsecured [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Balance at beginning of period | 1 | 2 | 1 | 3
Allowance for Loan and Lease Losses, Provision for loan losses | 3 | 0 | 3 | (1)
Allowance for Loan and Lease Losses, Loans charged off | (5) | 0 | (5) | 0
Allowance for Loan and Lease Losses, Recoveries | 2 | 0 | 2 | 0
Balance at end of period | 1 | 2 | 1 | 2
Unallocated [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Balance at beginning of period | 200 | 200 | 200 | 200
Allowance for Loan and Lease Losses, Provision for loan losses | 0 | 0 | 0 | 0
Allowance for Loan and Lease Losses, Loans charged off | 0 | 0 | 0 | 0
Allowance for Loan and Lease Losses, Recoveries | 0 | 0 | 0 | 0
Balance at end of period | 200 | 200 | 200 | 200
Automobile [Member] |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Balance at beginning of period | 0 | 0 | 0 | 0
Allowance for Loan and Lease Losses, Provision for loan losses | 0 | 0 | 0 | 0
Allowance for Loan and Lease Losses, Loans charged off | 0 | 0 | 0 | 0
Allowance for Loan and Lease Losses, Recoveries | 0 | 0 | 0 | 0
Balance at end of period | $ 0 | $ 0 | $ 0 | $ 0

X
- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + Details
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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
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