Note G - Employee Benefits Plans - Fair Values by Asset Category of Defined Benefit Pension Plan (Details) - USD ($) $ in Thousands		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and money market funds		$ 41
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member]
Cash and money market funds
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member]
Cash and money market funds
Cash and Cash Equivalents [Member]
Cash and money market funds		41
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and money market funds	[1]	785
Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Cash and money market funds	[1]
Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Cash and money market funds	[1]
Equity Securities [Member]
Cash and money market funds	[1]	785
Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and money market funds	[2]	745
Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Cash and money market funds	[2]
Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Cash and money market funds	[2]
Debt Securities [Member]
Cash and money market funds	[2]	745
Fair Value, Inputs, Level 1 [Member]
Cash and money market funds		1,571
Fair Value, Inputs, Level 2 [Member]
Cash and money market funds
Fair Value, Inputs, Level 3 [Member]
Cash and money market funds
Cash and money market funds		$ 1,571	$ 1,642	$ 1,719

[1] This category is comprised of publicly traded funds, of which 47% are large-cap funds, 28% are mid-cap and small-cap, 8% are emerging markets equity funds, and 17% are international equity funds.

[2] This category is comprised of publicly traded funds, of which 6% are long-term fixed income funds,14% are high-yield fixed income funds, 38% are intermediate fixed income funds, 27% are REITs and MLPs funds, and 15% are international/emerging markets funds.