Note 2 - Acquisitions (Details Textual) - In Bet [Member] $ in Millions	3 Months Ended
	Sep. 30, 2019 USD ($)
Business Combination, Consideration Transferred, Total	$ 4.0
Business Acquisition, Goodwill, Expected Tax Deductible Amount	1.2
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total	$ 2.8
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year)	9 years 109 days