Equity Plan (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized under 2015 Equity Incentive Plan	3,000,000
Vesting period	4 years	4 years
Share-based compensation	$ 2,437	$ 2,302
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock issued under employee stock purchase plan	2,492	2,216
Proceeds from issuance	$ 69	$ 50
2017 Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Discount rate on purchase of common stock	5.00%
Restricted stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted under 2015 Equity Incentive Plan	8,624	187,169
Unrecognized compensation expense, net of estimated forfeitures, related to non-vested restricted stock	$ 14,900
Unrecognized compensation expense, net of estimated forfeitures, related to non-vested restricted stock, Period	17 years 6 months
Grant date fair value of restricted stock	$ 264	$ 4,200
Stock vested	77,624	55,803
Fair value of stock vested	$ 853	$ 457
Restricted stock [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining vesting period		10 years
Restricted stock [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining vesting period		21 years
Restricted stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted under 2015 Equity Incentive Plan	204,014	28,110
Unrecognized compensation expense, net of estimated forfeitures, related to non-vested restricted stock	$ 7,100
Unrecognized compensation expense, net of estimated forfeitures, related to non-vested restricted stock, Period	11 years 2 months 12 days
Grant date fair value of restricted stock	$ 6,300	$ 689
Restricted stock Units [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining vesting period	4 years	4 years
Restricted stock Units [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining vesting period	41 years	37 years
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted under 2015 Equity Incentive Plan	5,262
Stock vested	25,310	17,200
Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted under 2015 Equity Incentive Plan	204,014	13,550
Grant date fair value of restricted stock		$ 300
Fair value of stock vested	$ 116

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