Note 10 - Per Share Data (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Schedule of Weighted Average Number of Shares [Table Text Block]

	Thirteen Week Periods Ended
	March 31, 2018		April 1, 2017
Basic weighted average shares outstanding		12,238,760		11,946,653
Dilutive effect of outstanding restricted stock awards		18,747		101,114
Weighted average dilutive shares outstanding		12,257,507		12,047,767

Unissued Shares of Common Stock [Table Text Block]

	March 31, 2018		December 30, 2017
Time-based restricted stock units outstanding		87,034		87,034
Performance-based restricted stock units outstanding		400,000		400,000
Future grants of options or shares		332,232		332,232
Shares reserved for employee stock purchase plan		131,872		177,280
Total		951,138		996,546