Stockholders' Equity (Detail) - A reconciliation of the activity in Stockholders` Equity accounts (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Dec. 31, 2012
Balance	$ 85,006		$ 87,239
Net loss	(2,094)	(1,563)
Stock repurchased	353
Stock-based compensation	247	187
Common Stock [Member]
Balance	282		284
Net loss
Stock repurchased	(2)
Stock-based compensation
Adjustment to net periodic benefit cost
Additional Paid-in Capital [Member]
Balance	14,914		15,018
Net loss
Stock repurchased	(351)
Stock-based compensation	247
Adjustment to net periodic benefit cost
Retained Earnings [Member]
Balance	70,327		72,421
Net loss	(2,094)
Stock repurchased
Stock-based compensation
Adjustment to net periodic benefit cost
Accumulated Other Comprehensive Income (Loss) [Member]
Balance	(517)		(484)
Net loss
Stock repurchased
Stock-based compensation
Adjustment to net periodic benefit cost	$ (33)