Basis Of Presentation And Consolidation (Consolidated Statement Of Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net (loss) income	$ 4,525	$ 4,029
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,078	3,732
Gain on investments	(111)	(268)
Equity in income of joint ventures	(696)	(1,281)
Dividends from joint ventures	1,139	1,340
Stock-based compensation and related net tax benefits	437	282
Current and long-term deferred taxes, net	(1,195)	260
Changes in operating assets and liabilities:
Decrease in accounts receivable, net	4,985	4,482
(Increase) decrease in prepaid taxes	(214)	901
(Increase) decrease in other operating assets, net	(1,437)	102
Decrease in accounts payable and other accrued liabilities	(971)	(3,840)
(Decrease) increase in other operating liabilities, net	(53)	200
Net cash provided by operating activities	9,484	9,939
Cash flows used by investing activities:
Acquisition of property, plant and equipment	(1,384)	(1,245)
Acquisition of joint ventures and businesses, net of cash acquired		(1,800)
Other investing activities, net	(315)	97
Net cash used by investing activities	(1,699)	(2,948)
Cash flows (used) provided by financing activities:
Net borrowings on revolving credit facility		(21)
Long-term borrowings - loan	8,800	14,000
Long-term borrowings - repayment	(8,800)	(13,000)
Dividends paid to stockholders	(5,347)	(5,274)
Other financing activities, net	(331)	49
Net cash used by financing activities	(5,678)	(4,246)
Effects of foreign currency translation	(471)	49
Net increase in cash and cash equivalents	1,636	2,794
Opening balance - cash and cash equivalents	6,761	8,672
Ending balance - cash and cash equivalents	8,397	11,466
As Previously Reported [Member]
Cash flows from operating activities:
Net (loss) income		3,247
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		3,894
Gain on investments		(146)
Equity in income of joint ventures		(573)
Dividends from joint ventures		1,340
Stock-based compensation and related net tax benefits		282
Current and long-term deferred taxes, net		292
Changes in operating assets and liabilities:
Decrease in accounts receivable, net		4,396
(Increase) decrease in prepaid taxes		466
(Increase) decrease in other operating assets, net		(88)
Decrease in accounts payable and other accrued liabilities		(3,328)
(Decrease) increase in other operating liabilities, net		200
Net cash provided by operating activities		9,982
Cash flows used by investing activities:
Acquisition of property, plant and equipment		(1,245)
Acquisition of joint ventures and businesses, net of cash acquired		(1,800)
Other investing activities, net		(573)
Net cash used by investing activities		(3,618)
Cash flows (used) provided by financing activities:
Net borrowings on revolving credit facility		(21)
Long-term borrowings - loan		14,000
Long-term borrowings - repayment		(13,000)
Dividends paid to stockholders		(5,274)
Other financing activities, net		49
Net cash used by financing activities		(4,246)
Effects of foreign currency translation		(30)
Net increase in cash and cash equivalents		2,088
Opening balance - cash and cash equivalents		11,184
Ending balance - cash and cash equivalents		$ 13,272