Note 7 - Earnings (loss) per common share (Tables)

9 Months Ended

Sep. 29, 2013

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three months ended				Nine months ended
(Number of common shares)	September 29, 2013		September 30, 2012		September 29, 2013		September 30, 2012
Basic weighted average shares outstanding		16,360,860		16,319,255		16,350,359		16,283,803
Dilutive stock options(a) (b)		29,518		124,798		-		135,469
Diluted weighted average shares outstanding		16,390,378		16,444,053		16,350,359		16,419,272