Note 1 - Basis of Presentation (Details Textual) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Operating Lease, Liability, Total	$ 4,062
Operating Lease, Liability, Current	1,200
Operating Lease, Liability, Noncurrent	2,864
Lessee, Operating Lease, Liability, Payments, Due, Total	$ 4,524
Operating Lease, Weighted Average Discount Rate, Percent	5.65%
Operating Lease, Right-of-Use Asset	$ 4,716
Accounting Standards Update 2016-02 [Member]
Operating Lease, Liability, Total		$ 4,100
Operating Lease, Liability, Current		1,000
Operating Lease, Liability, Noncurrent		3,100
Lessee, Operating Lease, Liability, Payments, Due, Total		$ 4,600
Operating Lease, Weighted Average Discount Rate, Percent		5.74%
Accounting Standards Update 2014-09 [Member]
Operating Lease, Right-of-Use Asset		$ 4,900
Prepaid Rent		$ (800)
BAMKO [Member]
Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest	99.00%