Income Taxes (Effective Tax Rate) (Details) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2019	Jun. 30, 2018
Income Tax Reconciliation [Abstract]
Federal income tax statutory rate, Amount		$ 1,243	$ 1,551
State income tax, net of federal income tax benefits, Amount		456	429
Changes in taxes resulting from:
Bank-owned life insurance, Amount		(39)	(50)
Non-deductible expenses, Amount		21	30
Non-deductible stock-based compensation, Amount		(2)	15
Excess tax benefit on stock-based compensation, Amount		(104)	(189)
Deferred tax asset revaluation due to the Tax Act, Amount		0	1,765
Return to provision adjustment		(77)	0
Other, Amount	[1]	5	(155)
Effective income tax, Amount	[2]	$ 1,503	$ 3,396
Effective Income Tax Rate Reconciliation [Abstract]
Federal income tax statutory rate, Tax Rate		21.00%	28.06%
State income tax, net of federal income tax benefits, Tax Rate		7.70%	7.77%
Changes in taxes resulting from:
Bank-owned life insurance, Tax Rate		(0.66%)	(0.90%)
Non-deductible expenses, Tax Rate		0.35%	0.53%
Non-deductible stock-based compensation, Tax Rate		0.03%	(0.26%)
Excess tax benefit on stock-based compensation, Tax Rate		(1.77%)	(3.41%)
Deferred tax asset revaluation due to the Tax Act, Tax Rate		0.00%	31.93%
Return to provision adjustment, Tax Rate		(1.29%)	0.00%
Other, Tax Rate	[1]	0.08%	(2.81%)
Effective income tax, Tax Rate		25.38%	61.43%

[1] Tax benefit resulting from the corporate tax rate reduction in fiscal 2018.

[2] Includes a net tax charge of $1.8 million resulting from the revaluation of net deferred tax assets consistent with the Tax Cuts and Jobs Act of 2017 ("Tax Act") for the fiscal year ended June 30, 2018.