Consolidated Condensed Balance Sheets (USD $) In Thousands	Oct. 01, 2011	Dec. 31, 2010
Current Assets:
Cash and Cash Equivalents	$ 20,612	$ 22,709
Accounts Receivable, net of allowance for doubtful accounts	37,036	30,941
Inventories	40,015	37,763
Other Current Assets	6,724	5,727
Total Current Assets	104,387	97,140
Property, Plant and Equipment - net of accumulated depreciation and amortization of $28,684 and $25,990 respectively	40,819	30,873
Deferred Income Taxes	5,769	6,883
Other Assets	3,119	3,342
Intangible Assets, net of accumulated amortization	4,721	5,040
Goodwill	7,516	7,610
Total Assets	166,331	150,888
Current Liabilities:
Current Maturities of Long-term Debt	5,297	5,314
Accounts Payable	9,974	10,583
Accrued Expenses	11,869	10,016
Billings in Excess of Recoverable Costs and Accrued Profits on Uncompleted Contracts	347	1,519
Customer Advance Payments and Deferred Revenue	4,787	3,853
Total Current Liabilities	32,274	31,285
Long-term Debt	29,356	33,264
Other Liabilities	8,460	9,124
Total Liabilities	70,090	73,673
Shareholders' Equity:
Common stock, value	94	89
Additional Paid-in Capital	17,004	14,337
Accumulated Other Comprehensive Income (Loss)	(79)	(2)
Retained Earnings	81,469	65,047
Total stockholders' equity before Treasury shares	98,522	79,496
Less Treasury Stock: 528,341 shares in both 2011 and 2010	2,281	2,281
Total Shareholders' Equity	96,241	77,215
Total Liabilities and Shareholders' Equity	166,331	150,888
Common Class B Member
Shareholders' Equity:
Common stock, value	$ 34	$ 25