Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2016	Jan. 02, 2016
Cash Flows from Operating Activities
Net Income	$ 1,705	$ 11,774
Adjustments to reconcile net income to net cash provided by (used in) operating activities
Stock-based compensation	1,721	1,718
Excess tax benefits from stock-based compensation	(4)	(68)
Fair value adjustment to acquired inventory	7,724	0
Net periodic pension benefit cost	433	280
Depreciation and amortization	8,392	4,945
Amortization of debt issuance costs	907	40
Deferred income taxes	(1,823)	989
Bad debt provision (recovery), net	554	89
Changes in operating assets and liabilities
Accounts and unbilled contracts receivable	13,788	(6,735)
Inventories	227	(4,924)
Prepaid expenses	(2,908)	(2,355)
Accounts payable	130	343
Accrued payroll and related costs	(12,586)	(2,222)
Advance payments from customers	15,252	13,272
Accrued warranty costs	(297)	(390)
Other assets and liabilities	(4,287)	(5,910)
Net Cash Provided by (Used in) Operating Activities	28,928	10,846
Cash Flows from Investing Activities
Purchases of property and equipment	(4,654)	(6,662)
Proceeds from sale of property and equipment	25	0
Net Cash Provided by (Used in) Investing Activities	(4,629)	(6,662)
Cash Flows from Financing Activities
Payment of long-term debt	(1,150)	0
Payment of debt issuance costs for long-term debt	(186)	0
Payment of debt component of tangible equity units	(2,080)	0
Payment of debt issuance costs for revolving credit facility	49	0
Receipts under short-term borrowings	0	19,758
Excess tax benefits from stock-based compensation	4	68
Cash dividends	(5,003)	(4,450)
Proceeds from exercise of stock options and employee stock purchase plan	652	1,199
Payments to purchase and retire common stock	(922)	(12,356)
Net Cash Provided by (Used in) Financing Activities	(8,734)	4,219
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(4,396)	(884)
Cash and Cash Equivalents
Increase (decrease) during the period	11,169	7,519
Balance, beginning of period	84,780	51,768
Balance, end of period	95,949	59,287
Cash paid during the period for
Interest	10,436	154
Income taxes	5,984	2,681
Non-cash financing activities
Dividends declared not yet paid recorded in accrued dividends	$ 4,953	$ 0