Note 2 - Equity Method Investment - Summary of Equity Method Investments (Details)	12 Months Ended
	Dec. 31, 2018 USD ($)
Gross margin	$ (5,056,725)
Net loss	(9,452,835)
Helomics Holding Corp. [Member]
Current assets	419,266
Non-current assets	2,046,347
Total assets	2,465,613
Current liabilities	12,247,174
Total liabilities	12,247,174
Revenue	523,546
Gross margin	214,426
Net Loss to investee	$ (7,159,255)	[1]

[1] The loss to investee was calculated at 80% for the initial period of ownership, January 11, 2018 - February 27, 2018, and then at 75% for the remainder of the twelve-month period at the current equity investment percentage owned by the Company.