Note 4 - Debt - Summary of Interest Expense (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Jan. 01, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Amortization of deferred financing costs				$ 430
Interest income and other		$ (562)		(953)
Interest expense, net		171		1,276
Accretion of original issue discount
Amortization of deferred financing costs				430
Deferred Financing Costs Accelerated Amortization [Member]
Amortization of deferred financing costs		124
Amortization of deferred financing costs		124
Accretion of Original Issue Discount [Member]
Accretion of original issue discount
Amortization of Deferred Financing Costs [Member]
Amortization of deferred financing costs				430
Amortization of deferred financing costs				430
Original Issue Discount Accelerated Amortization [Member]
Accretion of original issue discount
Predecessor [Member]
Amortization of deferred financing costs					$ 49,318
Interest income and other			$ (40)		(146)
Interest expense, net			8,158		155,559
Accretion of original issue discount					52,913
Amortization of deferred financing costs					49,318
Predecessor [Member] | Deferred Financing Costs Accelerated Amortization [Member]
Amortization of deferred financing costs					43,720
Amortization of deferred financing costs					43,720
Predecessor [Member] | Accretion of Original Issue Discount [Member]
Accretion of original issue discount					4,192
Predecessor [Member] | Amortization of Deferred Financing Costs [Member]
Amortization of deferred financing costs					4,589
Amortization of deferred financing costs					4,589
Predecessor [Member] | Original Issue Discount Accelerated Amortization [Member]
Accretion of original issue discount					48,221
Amended Credit Facility [Member]
Interest expense, debt, excluding amortization		452		1,328
Amended Credit Facility [Member] | Predecessor [Member]
Interest expense, debt, excluding amortization
DIP Lenders [Member]
Interest expense, debt, excluding amortization
DIP Lenders [Member] | Predecessor [Member]
Interest expense, debt, excluding amortization			438		438
Original Credit Agreement [Member]
Interest expense, debt, excluding amortization
Original Credit Agreement [Member] | Predecessor [Member]
Interest expense, debt, excluding amortization			7,380		53,595
Capital Lease Obligations [Member]
Interest expense, debt, excluding amortization		$ 157		$ 471
Capital Lease Obligations [Member] | Predecessor [Member]
Interest expense, debt, excluding amortization			$ 380		$ 950