Note 9 - Equity Incentive Plans (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	2015
Expected option life - years		4.5
Volatility		41.05	%
Risk-free interest rate		1.30	%
Dividend yield		0	%

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

	Predecessor
	January 1, 2017 Through November 14, 2017					2016					2015
				Weighted					Weighted					Weighted
				Average					Average					Average
				Exercise					Exercise					Exercise
	Shares			Price		Shares			Price		Shares			Price
Outstanding at beginning of year		212,019		$	27.69		222,019		$	27.01		140,293		$	41.68
Granted		-			-		-			-		165,879			12.45
Forfeitures		(212,019	)		27.69		(10,000	)		12.55		(84,153	)		26.85
Outstanding at end of year		-		$	-		212,019		$	27.69		222,019		$	27.01
Exercisable shares and weighted average exercise price		-		$	-		128,532		$	33.83		57,859		$	42.05
Shares available for future grants:		876,553					414,975					1,061,130