Note 1 - Principles of Consolidation and Basis of Presentation (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Deferred Federal Income Tax Expense (Benefit)	$ 444	$ 252	$ 482	$ 21
Deferred State and Local Income Tax Expense (Benefit)	104	157	165	$ 311
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 546	$ 424	$ 674
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	115,000	770,000	115,000	770,000
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	0	0	0	0