Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income	$ 4,525us-gaap_ProfitLoss	$ 4,029us-gaap_ProfitLoss
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,078	3,732
Equity in income of joint ventures	(696)us-gaap_OtherNoncashIncome	(1,281)us-gaap_OtherNoncashIncome
Dividends from joint ventures	1,139	1,340
Stock-based compensation and related net tax benefits	437us-gaap_ShareBasedCompensation	282us-gaap_ShareBasedCompensation
Current and long-term deferred taxes, net	(1,195)	260
Gain on sale, disposal and abandonment of fixed assets	(3)
Gain on investments	(111)us-gaap_GainLossOnInvestments	(268)us-gaap_GainLossOnInvestments
Changes in operating assets and liabilities:
Decrease in accounts receivable, net	4,985us-gaap_IncreaseDecreaseInReceivables	4,482us-gaap_IncreaseDecreaseInReceivables
(Increase) decrease in prepaid taxes	(214)us-gaap_IncreaseDecreaseInPrepaidTaxes	901us-gaap_IncreaseDecreaseInPrepaidTaxes
(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)us-gaap_RepaymentsOfDebt	(13,000)us-gaap_RepaymentsOfDebt
Dividends paid to stockholders	(5,347)us-gaap_PaymentsOfDividendsCommonStock	(5,274)us-gaap_PaymentsOfDividendsCommonStock
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
Accrued capital spending included in accounts payable and other accrued liabilities	$ 205	$ 174

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