Note 5 - Discontinued Operations (Details Textual) - Master-Bilt and NorLake Segments [Member] - Discontinued Operations [Member] - Ten Oaks Group [Member] - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2020	Jun. 30, 2020
Disposal Group, Including Discontinued Operation, Cash Purchase Price	$ 10.6
Disposal Group, Including Discontinued Operation, Liabilities, Total		$ 0.1
Disposal Group, Including Discontinued Operation, Assets, Total			$ 2.3