Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011	Mar. 26, 2011
Current Assets:
Cash and cash equivalents (Note 2)	$ 402	$ 774	$ 527
Trade and other accounts receivable, less allowances of $464, $679, and $426, respectively	18,059	22,726	15,666
Inventories, net (Note 3)	43,070	48,648	46,869
Prepaid expenses and other	1,276	1,398	984
Deferred tax assets	1,711	1,771	1,675
Total current assets	64,518	75,317	65,721
Property and equipment, net of accumulated depreciation of $15,995, $15,092, and $12,675, respectively	16,353	16,143	16,000
Goodwill	10,753	10,753	10,753
Other assets	271	222	243
Total assets	91,895	102,435	92,717
Current Liabilities:
Short-term borrowings (Notes 2 and 6)	8,643	16,869	6,247
Accounts payable	6,593	7,463	10,553
Accrued compensation	1,977	1,789	1,301
Product warranty and other accruals (Note 4)	1,640	2,939	1,994
Total current liabilities	18,853	29,060	20,095
Long-term debt	107	138	225
Deferred revenue	565	550	548
Deferred lease obligations	923	895	813
Compensation and benefits (Note 8)	6,981	7,214	4,146
Deferred tax liabilities	1,189	1,450	3,053
Total liabilities	28,618	39,307	28,880
Shareholders' Equity:
Common stock, par value $.01 per share; authorized 50,000,000 shares; issued 6,717,627 shares	67	67	67
Additional paid-in capital	31,830	31,600	31,122
Accumulated other comprehensive loss (Note 9)	(5,906)	(6,058)	(3,640)
Retained earnings (Note 11)	38,284	38,538	37,327
Less cost of 208,065,213,003 and 217,759 shares of treasury stock, respectively	(998)	(1,019)	(1,039)
Total shareholders' equity	63,277	63,128	63,837
Total liabilities and shareholders' equity	$ 91,895	$ 102,435	$ 92,717