Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating activities:
Net income	$ 3,017us-gaap_ProfitLoss	$ 12,948us-gaap_ProfitLoss	$ 19,433us-gaap_ProfitLoss
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	9,220us-gaap_Depreciation	8,721us-gaap_Depreciation	8,959us-gaap_Depreciation
Amortization	1,497us-gaap_AdjustmentForAmortization	1,625us-gaap_AdjustmentForAmortization	1,306us-gaap_AdjustmentForAmortization
Deferred income taxes	(5,332)	1,986	6,186
Share-based compensation	2,708us-gaap_ShareBasedCompensation	2,827us-gaap_ShareBasedCompensation	3,414us-gaap_ShareBasedCompensation
Asset Impairment Charges	14,653us-gaap_AssetImpairmentCharges	0us-gaap_AssetImpairmentCharges	0us-gaap_AssetImpairmentCharges
Loss on disposal of assets, net	306us-gaap_GainLossOnSaleOfOtherAssets	317us-gaap_GainLossOnSaleOfOtherAssets	492us-gaap_GainLossOnSaleOfOtherAssets
Changes in operating assets and liabilities:
Accounts receivable, net	5,753	(9,301)	18
Prepaid expenses and other current assets	(1,273)	2,488	262
Accounts payable	(6,962)	(4,751)	4,891
Accrued expenses and other current liabilities	(11,131)	3,823	(8,762)
Income taxes prepaid/payable	2,123	(3,505)	(351)
Other non-current assets	339	388	(1,719)
Deferred compensation	(30)	(32)	579
Other non-current liabilities	(100)	(1,434)	2,429
Net cash provided by operating activities	14,788	16,100	37,137
Investing activities:
Additions to property and equipment	(8,774)	(7,529)	(6,225)
Reacquired franchise rights	0	0	(65)
Other	75	142	(344)
Net cash used in investing activities	(8,699)	(7,387)	(6,634)
Financing activities:
Dividends paid to shareholders	(10,176)us-gaap_PaymentsOfDividends	(7,589)us-gaap_PaymentsOfDividends	(12,548)us-gaap_PaymentsOfDividends
Payment of acquisition earnout	(187)	0	(370)
Borrowings on credit facility	115,544us-gaap_ProceedsFromShortTermDebt	77,619us-gaap_ProceedsFromShortTermDebt	206,674us-gaap_ProceedsFromShortTermDebt
Repayments of Debt	(116,893)us-gaap_RepaymentsOfDebt	(77,405)us-gaap_RepaymentsOfDebt	(203,923)us-gaap_RepaymentsOfDebt
Change in book overdraft	(1,709)	1,709	(3,363)
Common shares withheld for taxes	(498)	(858)	(900)
Excess tax benefit from share-based compensation awards	148	143	387
Net cash used in financing activities	(13,771)	(6,381)	(14,043)
Effect of exchange rate changes on cash and cash equivalents	(1,473)	(505)	548
Net increase (decrease) in cash and cash equivalents	(9,155)	1,827	17,008
Cash and cash equivalents at beginning of period	45,479	43,652	26,644
Cash and cash equivalents at end of period	36,324	45,479	43,652
Supplemental disclosure of cash flow information:
Cash paid for interest	147us-gaap_InterestPaid	133us-gaap_InterestPaid	202us-gaap_InterestPaid
Cash paid for income taxes, net	$ 4,845us-gaap_IncomeTaxesPaidNet	$ 9,384us-gaap_IncomeTaxesPaidNet	$ 6,591us-gaap_IncomeTaxesPaidNet

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-URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591551-111686

+ Details

Name:	us-gaap_ProfitLoss
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

+ Details

Name:	us-gaap_RepaymentsOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_SupplementalCashFlowInformationAbstract
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration