Note 1 - Summary of Significant Accounting Policies - Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Gross carrying amount	$ 2,272	$ 2,233
Accumulated amortization	929	710
Other Intangible Assets, Net	$ 1,343	$ 1,523
Customer Relationships [Member]
Remaining lives (Year)	9 years	9 years
Gross carrying amount	$ 1,302	$ 1,302
Accumulated amortization	651	506
Other Intangible Assets, Net	$ 651	$ 796
Intellectual Property [Member]
Remaining lives (Year)	3 years	3 years
Gross carrying amount	$ 100	$ 100
Accumulated amortization	95	61
Other Intangible Assets, Net	$ 5	$ 39
Trade Names [Member]
Remaining lives (Year)	20 years	20 years
Gross carrying amount	$ 814	$ 814
Accumulated amortization	183	143
Other Intangible Assets, Net	$ 631	$ 671
Other Intangible Assets [Member]
Remaining lives (Year)	7 years	7 years
Gross carrying amount	$ 56	$ 17
Accumulated amortization
Other Intangible Assets, Net	$ 56	$ 17