Note 1 - Organization, Nature of Business and Summary of Significant Accounting Policies - Securities Excluded From Computation of Basic and Diluted Earnings Per Share (Details) - shares shares in Thousands		3 Months Ended		6 Months Ended
	Jan. 01, 2017	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Restricted shares (in shares)		572		436
Potentially dilutive securities excluded as anti-dilutive (in shares)		812		632
Employee Stock Option [Member]
Potentially dilutive securities excluded as anti-dilutive (in shares)		256		205
Restricted Stock [Member]
Potentially dilutive securities excluded as anti-dilutive (in shares)		556		427
Predecessor [Member]
Restricted shares (in shares)	898		1,508		2,117
Potentially dilutive securities excluded as anti-dilutive (in shares)	5,314		6,587		6,902
Predecessor [Member] | Employee Stock Option [Member]
Potentially dilutive securities excluded as anti-dilutive (in shares)	4,416		5,079		4,801
Predecessor [Member] | Restricted Stock [Member]
Potentially dilutive securities excluded as anti-dilutive (in shares)	898		1,508		2,101