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
	Jan. 01, 2017	Mar. 31, 2017	Mar. 31, 2016
Restricted shares (in shares)		299
Potentially dilutive securities excluded as anti-dilutive (in shares)		454
Employee Stock Option [Member]
Potentially dilutive securities excluded as anti-dilutive (in shares)		155
Restricted Stock [Member]
Potentially dilutive securities excluded as anti-dilutive (in shares)		299
Predecessor [Member]
Restricted shares (in shares)	898		2,726
Potentially dilutive securities excluded as anti-dilutive (in shares)	5,314		7,218
Predecessor [Member] | Employee Stock Option [Member]
Potentially dilutive securities excluded as anti-dilutive (in shares)	4,416		4,523
Predecessor [Member] | Restricted Stock [Member]
Potentially dilutive securities excluded as anti-dilutive (in shares)	898		2,695