Note 3 - Revenue From Contracts With Customers - Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Contract assets			$ 15,013	$ 9,140
Contract assets, additions			19,034	13,774
Contract assets, deduction			14,678	13,305
Contract assets	$ 19,369	$ 9,609	19,369	9,609
Contract liabilities			471	2,298
Contract liabilities, additions			6,472	4,382
Contract liabilities, deductions			6,691	6,315
Contract liabilities	252	365	252	365
Amounts included in the contract liability balance at the beginning of the period	$ 252	$ 1,418	$ 471	$ 2,298