CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income	$ 9,030	$ 8,241
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,839	4,208
Amortization of deferred financing fees	92	92
Losses on disposals of property, plant and equipment	1
Tax benefit from stock option exercises	(43)	(195)
Deferred income taxes	567	787
Changes in assets and liabilities, net of effects of acquisitions:
Accounts receivable, net	(1,820)	(335)
Inventories	3,652	558
Prepaid expenses and other current assets	555	2,449
Other non-current assets	(10)	(57)
Accounts payable	(506)	2,380
Accrued expenses	(1,264)	(979)
Other non-current liabilities	(29)	102
Net cash provided by operating activities	15,064	17,251
Cash flows from investing activities:
Acquisitions of businesses		(6,490)
Purchases of property, plant and equipment	(3,887)	(4,746)
Net cash used in investing activities	(3,887)	(11,236)
Cash flows from financing activities:
Proceeds from debt	10,000	4,000
Payments on debt	(9,000)	(4,000)
Proceeds from issuances of common stock	464	342
Purchases of common stock for treasury	(2,156)	(3,761)
Dividends paid on common stock	(9,785)
Tax benefit from stock option exercises	43	195
Net cash used in financing activities	(10,434)	(3,224)
Effect of exchange rate changes on cash	(66)	10
Net increase in cash	677	2,801
Cash at beginning of period	4,824	2,441
Cash at end of period	$ 5,501	$ 5,242