Note J - Treasury Stock (Details Textual) - USD ($)	3 Months Ended
Sep. 30, 2019	Sep. 30, 2018
Treasury Stock, Value, Acquired, Cost Method	$ 15,000	$ 6,000
Stock Repurchase Plan [Member]
Stock Repurchase Program, Authorized Amount	$ 7,000,000
Treasury Stock, Shares, Acquired	1,031	0
Treasury Stock, Value, Acquired, Cost Method	$ 8,700
Stock Repurchase Plan In Connection With Restricted Stock [Member]
Treasury Stock, Shares, Acquired	686	674
Treasury Stock, Value, Acquired, Cost Method	$ 7,000	$ 6,000
Treasury Stock Acquired, Average Cost Per Share	$ 9.90	$ 9.65

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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Balance Type:	debit
Period Type:	duration