Note 3 - Loans - Impaired Loans (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016	Jun. 30, 2016
Impaired Financing Receivable, Related Allowance	$ 336,000		$ 336,000		$ 874,000
Impaired Financing Receivable, Unpaid Principal Balance	4,599,000		4,599,000		7,416,000
Impaired Financing Receivable, Recorded Investment	3,704,000		3,704,000		6,892,000
Impaired Financing Receivable, Average Recorded Investment	3,089,000	$ 4,324,000	3,755,000	$ 4,210,000
Impaired Financing Receivable, Interest Income, Accrual Method	4,000	10,000	213,000	36,000
Impaired Financing Receivable, Interest Income, Cash Basis Method	4,000	10,000	213,000	36,000
Commercial Portfolio Segment [Member]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance					1,033,000
Impaired Financing Receivable, with No Related Allowance, Recorded Investment					1,029,000
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment			220,000
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method			80,000
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method			80,000
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	4,000		4,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment	4,000		4,000
Impaired Financing Receivable, Related Allowance	4,000		4,000
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	4,000		6,000
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	6,000		6,000		386,000
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	5,000		5,000		384,000
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	6,000	20,000	115,000	18,000
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method			6,000
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method			6,000
Commercial Real Estate Portfolio Segment [Member] | Other Commercial Real Estate Loans [Member]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	1,857,000		1,857,000		2,121,000
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	969,000		969,000		2,106,000
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	917,000	2,183,000	1,026,000	2,164,000
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method			105,000
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method			105,000
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	2,334,000		2,334,000		2,802,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment	2,329,000		2,329,000		2,615,000
Impaired Financing Receivable, Related Allowance	330,000		330,000		868,000
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,747,000	1,111,000	1,936,000	1,026,000
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	3,000	8,000	18,000	26,000
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	3,000	8,000	18,000	26,000
Residential Portfolio Segment [Member] | Residential Real Estate Owner Occupied Loans [Member]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	188,000		188,000		175,000
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	188,000		188,000		174,000
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	119,000	294,000	124,000	280,000
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method		1,000		1,000
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method		1,000		1,000
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	17,000		17,000		177,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment	17,000		17,000		177,000
Impaired Financing Receivable, Related Allowance	2,000		2,000		6,000
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	101,000	159,000	126,000	156,000
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	1,000	1,000	4,000	5,000
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	1,000	1,000	4,000	5,000
Residential Portfolio Segment [Member] | Residential Real Estate Non-owner Occupied Loans [Member]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	193,000		193,000		722,000
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	192,000		192,000		407,000
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	195,000	557,000	202,000	413,000
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance
Impaired Financing Receivable, with Related Allowance, Recorded Investment
Impaired Financing Receivable, Related Allowance
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment				153
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method				4
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method				$ 4