Note 18 - Condensed Balance Sheets (Details) - USD ($)	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Parent Company [Member] | Investments In Banking Subsidiary [Member]
Investment in subsidiary	$ 117,573,000	$ 109,382,000
Parent Company [Member] | Investments In Non-banking Subsidiary [Member]
Investment in subsidiary	70,237,000	75,706,000
Parent Company [Member]
Cash and cash equivalents	3,910,000	3,091,000	$ 2,796,000	$ 4,584,000
Investments and marketable securities
Intercompany receivable	3,000	69,000
Intercompany note receivable
Other assets	169,000	664,000
Premises and other fixed assets	124,000	197,000
	192,016,000	189,109,000
Accrued liabilities	470,000	492,000
Intercompany payable	123,000	120,000
Income taxes payable- deferred	401,000	279,000
	994,000	891,000
Preferred stock; 2,500,000 shares authorized; none issued
Common stock, $.01 par value; 20,000,000 shares authorized: 10,279,807 (2016) and 10,459,924 (2015) issued and outstanding	103,000	105,000
Additional paid in capital	2,240,000	3,376,000
Retained earnings	187,334,000	184,506,000
Other comprehensive income, net of tax	1,345,000	231,000
	191,022,000	188,218,000
	192,016,000	189,109,000
Cash and cash equivalents	105,094,000	60,240,000	40,122,000	75,469,000
Investments and marketable securities	3,957,000	3,334,000
Other assets	2,108,000	791,000
	888,176,000	731,074,000	579,550,000
Accrued liabilities	3,622,000	2,278,000
Income taxes payable- deferred	12,674,000	11,944,000
	697,154,000	542,856,000
Preferred stock; 2,500,000 shares authorized; none issued
Common stock, $.01 par value; 20,000,000 shares authorized: 10,279,807 (2016) and 10,459,924 (2015) issued and outstanding	103,000	105,000
Additional paid in capital	2,240,000	3,376,000
Retained earnings	187,334,000	184,506,000
Other comprehensive income, net of tax	1,345,000	231,000
	191,022,000	188,218,000	$ 183,745,000	$ 180,879,000
	$ 888,176,000	$ 731,074,000