Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Cash Flows from Operating Activities
Net Income	$ 8,904	$ 14,772
Adjustments to reconcile net income to net cash provided by (used in) operating activities
Stock-based compensation	2,637	3,523
Excess tax benefits from stock-based compensation	(42)	(171)
Fair value adjustment to acquired inventory	7,724	0
Net periodic pension benefit cost	856	564
Depreciation and amortization	16,832	9,886
Amortization of debt issuance costs	1,807	80
Deferred income taxes	(3,383)	580
Bad debt provision (recovery), net	890	163
Changes in operating assets and liabilities
Accounts and unbilled contracts receivable	15,233	(2,100)
Inventories	(1,925)	(9,352)
Prepaid expenses	(3,055)	(2,980)
Accounts payable	(3,627)	3,635
Accrued payroll and related costs	(6,319)	185
Advance payments from customers	14,437	32,494
Accrued warranty costs	(465)	175
Other assets and liabilities	(9,329)	(10,600)
Net Cash Provided by (Used in) Operating Activities	41,175	40,854
Cash Flows from Investing Activities
Purchases of property and equipment	(9,318)	(11,197)
Proceeds from sale of property and equipment	25	1,320
Net Cash Provided by (Used in) Investing Activities	(9,293)	(9,877)
Cash Flows from Financing Activities
Payment of long-term debt	(2,300)	0
Payment of debt issuance costs for long-term debt	(186)	0
Payment of debt component of tangible equity units	(4,197)	0
Payment of debt issuance costs for revolving credit facility	(49)	0
Receipts under short-term borrowings	0	20,000
Payments under short-term borrowings	0	(20,000)
Excess tax benefits from stock-based compensation	42	171
Cash dividends	(9,955)	(4,513)
Proceeds from exercise of stock options and employee stock purchase plan	1,672	2,560
Payments to purchase and retire common stock	(1,482)	(18,362)
Net Cash Provided by (Used in) Financing Activities	(16,455)	(20,144)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(2,774)	746
Cash and Cash Equivalents
Increase (decrease) during the period	12,653	11,579
Balance, beginning of period	84,780	51,768
Balance, end of period	97,433	63,347
Cash paid during the period for
Interest	15,197	349
Income taxes	9,379	8,338
Non-cash financing activities
Dividends declared not yet paid recorded in accrued dividends	$ 5,021	$ 4,360