Note 4 - Fair Value Measurements - Discounted Cash Flow Assumptions (Details)	11 Months Ended	12 Months Ended
	Dec. 13, 2016	Dec. 31, 2015
Time-to-liquidity (months) (Month)	2 years	2 years
Minimum [Member]
Discount rate	4.30%	4.30%
Maximum [Member]
Discount rate	9.30%	7.30%