Note 6 - Other Assets - Schedule of Other Assets, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Other Assets Unclassified [Abstract]
Restricted cash- escrow accounts	$ 2,527
Prepaid assets and deposits	2,144	$ 266
Right-of-use assets	1,284
Pre-acquisition costs	1,130	309
Receivables due from related parties	525	1,191
Other receivables, net of allowance of $193 and $143	113	611
Corporate property, net	101	74
Straight-line rent receivable	30
Interest rate cap asset	16
Pre-offering costs		393
Other assets, net	$ 7,870	$ 2,844