Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2011	Jan. 01, 2011
Cash flows from operating activities:
Net income	$ 15,539	$ 13,289
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation	799	693
Net periodic pension benefit cost	172	176
Depreciation and amortization	3,084	3,155
Deferred income taxes	77	726
Bad debt provision	94	295
Changes in operating assets and liabilities:
Accounts and unbilled contracts receivable	(19,112)	2,333
Inventories	(1,269)	(3,569)
Prepaid expenses	(2,049)	(867)
Accounts payable	(584)	(1,517)
Accrued payroll and related costs	(8,483)	(7,465)
Advance payments from customers	11,254	(1,614)
Accrued warranty costs	(629)	(696)
Other assets and liabilities	3,624	832
Net cash provided by operating activities	2,517	5,771
Cash flows from investing activities:
Purchases of property and equipment	(2,284)	(2,250)
Cash flows from financing activities:
Net receipts (repayments) under short-term borrowings	(44)	9
Cash dividends	(4,009)	(80)
Proceeds from exercise of stock options and employee stock purchase plan	4,556	1,123
Net cash provided by (used in) financing activities	503	1,052
Effect of exchange rate on changes in cash	(1,090)	(903)
Net increase (decrease) in cash and cash equivalents	(353)	3,670
Cash and cash equivalents, at beginning of period	104,095	76,611
Cash and cash equivalents, at end of period	103,742	80,281
Cash paid during the period for -
Interest	268	399
Income taxes	5,410	3,176
Non-cash financing activities:
Dividends declared not yet paid	$ 3,843	$ 2,984