Note 5 - Goodwill and Other Intangible Assets - Intangible Assets Other Than Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Gross	$ 24,499	$ 25,829
Accumulated Amortization	(10,149)	(8,460)
Net	$ 14,350	17,369
Minimum [Member]
Useful Life (Year)	2 years
Maximum [Member]
Useful Life (Year)	10 years
Marketing-Related Intangible Assets [Member]
Gross	$ 930	930
Accumulated Amortization	620	527
Net	$ 310	403
Useful Life (Year)	10 years
Weighted average useful life remaining (Year)	3 years 3 months 18 days
Noncompete Agreements [Member]
Gross	$ 270	270
Accumulated Amortization	(238)	(222)
Net	$ 32	48
Weighted average useful life remaining (Year)	2 years 3 months 18 days
Noncompete Agreements [Member] | Minimum [Member]
Useful Life (Year)	2 years
Noncompete Agreements [Member] | Maximum [Member]
Useful Life (Year)	5 years
Computer Software, Intangible Asset [Member]
Gross	$ 13,229	13,229
Accumulated Amortization	(3,645)	(2,275)
Net	$ 9,584	10,954
Useful Life (Year)	10 years
Weighted average useful life remaining (Year)	7 years 3 months 18 days
Customer Relationships [Member]
Gross	$ 10,070	10,070
Accumulated Amortization	(5,646)	(4,106)
Net	$ 4,424	$ 5,964
Weighted average useful life remaining (Year)	2 years 9 months 18 days
Customer Relationships [Member] | Minimum [Member]
Useful Life (Year)	6 years
Customer Relationships [Member] | Maximum [Member]
Useful Life (Year)	9 years