Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($)		1 Months Ended	3 Months Ended		6 Months Ended
	Mar. 14, 2016	Feb. 28, 2017	Jun. 30, 2017	Jul. 01, 2016	Jun. 30, 2017	Jul. 01, 2016	Dec. 30, 2016
Proceeds from Contributions from Former Parent						$ 86,421,000
Line of Credit, Portion Subject to Certain Revenue Milestones		$ 25,000,000
Inventory Write-down			$ 50,000	$ 0	$ 203,000
Nuvectra Segment [Member]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount							4.50%
NeuroNexus Segment [Member]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount							34.10%
Integer [Member]
Proceeds from Contributions from Former Parent	$ 75,000,000