Note 11 - Commitments and Contingencies (Details Textual)		12 Months Ended
	Mar. 28, 2018 USD ($)	Dec. 31, 2017 USD ($) ft²	Dec. 31, 2016 USD ($)
Chief Executive Officer [Member] | Subsequent Event [Member]
Officer Compensation, Annual Compensation, Cash	$ 240,000
Officer Compensation, Annual Compensation, Share Value	100,000
Chief Financial Officer [Member] | Subsequent Event [Member]
Officer Compensation, Annual Compensation, Cash	70,000
Officer Compensation, Annual Compensation, Share Value	$ 12,000
Executive and Administrative Offices [Member]
Area of Real Estate Property | ft²		1,800
Operating Leases Rent Expense Monthly Amount		$ 1,090
Operating Leases, Rent Expense		12,960	$ 12,715
Shared Office Space with ACTS Global Healthcare, Inc. in Taipei, Taiwan [Member]
Operating Leases Rent Expense Monthly Amount		65,000
Operating Leases, Rent Expense		$ 21,774	$ 41,889