Stock Based Compensation (Tables)

12 Months Ended

Jun. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of weighted average assumptions for option awards

	2017		2016
Dividend yield		3.85%		3.99%
Expected stock price volatility		29.70%		27.80%
Risk-free interest rate		1.84%		1.20%
Expected option life (in years)		4.6 yrs		4.2 yrs
Weighted average fair value per share
of options granted during the period	$	4.640	$	3.866

Schedule of stock option activity

	Employee Stock Options Plan
						Weighted
	Number of			Weighted		Average
	Shares			Average		Remaining		Aggregate
	Subject			Exercise		Contractual		Intrinsic
	to Option			Price		Term		Value
Balance at July 1, 2016		170,450		$	23.84		5.73
Granted		41,150		$	26.25		9.43
Exercised		(8,300	)	$	18.18		—
Forfeited or expired		(5,500	)	$	24.11		—
Outstanding at June 30, 2017		197,800		$	24.57		5.86	$	124,384
Vested or expected to vest at June 30, 2017		191,230		$	24.52		5.74	$	124,384
Exercisable at June 30, 2017		154,900		$	24.13		4.89	$	124,384

Schedule of changes in non-vested stock options

	Weighted
	Number of			Average
	Shares			Grant Date
	Subject			Fair Value
	to Option			(per Option)
Non-Vested at July 1, 2016		45,800		$	4.564
Granted		41,150			4.640
Vested		(41,050	)		4.609
Forfeited or expired		(3,000	)		4.681
Non-Vested at June 30, 2017		42,900		$	4.586