Note 4 - Other Assets - Schedule of Other Assets, Net (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Other Assets Unclassified [Abstract]
Right-of-use assets, net	$ 1,498	$ 1,284
Prepaid assets and deposits	1,302	2,144
Pre-acquisition costs	637	1,130
Straight-line rent receivable	510	30
Corporate property, net	120	101
Interest rate cap asset	34	16
Receivables due from related parties	24	525
Other receivables, net of allowance of $87 and $193	19	113
Lease incentives	14
Other assets, net	$ 4,158	$ 5,343