Note 15 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating lease cost	$ 2,390
Total Finance Lease cost:	691		314
Total Lease Cost, ASC 840		$ 502
Total Lease Cost	$ 3,081		314
Weighted average remaining lease term (years), operating lease (Year)	7 years
Weighted average discount rate, operating lease	5.90%
Weighted average remaining lease term (years), finance lease (Year)	2 years 109 days
Weighted average remaining lease term (years), finance lease ASC 840 (Year)		2 years 255 days
Weighted average discount rate, finance lease	2.60%
Weighted average discount rate, finance lease ASC 840		2.60%
Operating cash flows from operating leases	$ 2,613
Operating cash flows from finance leases	42
Operating cash flows from finance leases, ASC 840		$ 23	19
Financing cash flows from finance leases	630
Financing cash flows from finance leases, ASC 840		436	280
Selling, General and Administrative Expenses [Member]
Operating lease cost	1,578
Research and Development Expense [Member]
Operating lease cost	312
Cost of Gaming Operations [Member]
Operating lease cost	500
Depreciation and Amortization [Member]
Depreciation of leased assets	649		295
Depreciation of leased assets, ASC 840		479
Interest Expense [Member]
Interest on lease liabilities	$ 42		$ 19
Interest on lease liabilities, ASC 840		$ 23