Note 13 - Segment and Geographical Information (Details) - Segment Information (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Dec. 31, 2013
2013
Revenues	$ 173,028	[1],[2]	$ 148,703	[1],[2]
Segment profit	28,010	[1],[2]	23,005	[1],[2]
Depreciation and amortization expense	14,342	[1],[2]	16,326	[1],[2]
Capital expenditures	(712)	[1],[2]	(1,770)	[1],[2]
Total assets	847,625	[1],[2],[3]	731,610	[1],[2],[3]	732,513
Long-lived assets	618,752	[1],[2],[3]	546,773	[1],[2],[3]
UNITED STATES
2013
Revenues	106,049	[1],[2]	91,178	[1],[2]
Segment profit	15,954	[1],[2]	10,919	[1],[2]
Depreciation and amortization expense	7,720	[1],[2]	8,623	[1],[2]
Capital expenditures	(402)	[1],[2]	(919)	[1],[2]
Total assets	488,362	[1],[2],[3]	398,040	[1],[2],[3]
Long-lived assets	403,354	[1],[2],[3]	329,947	[1],[2],[3]
CANADA
2013
Revenues	7,507	[1],[2]	7,421	[1],[2]
Segment profit	1,098	[1],[2]	1,285	[1],[2]
Depreciation and amortization expense	811	[1],[2]	2,037	[1],[2]
Capital expenditures		[1],[2]	(11)	[1],[2]
Total assets	28,293	[1],[2],[3]	40,321	[1],[2],[3]
Long-lived assets	21,169	[1],[2],[3]	31,995	[1],[2],[3]
UNITED KINGDOM
2013
Revenues	42,053	[1],[2]	33,767	[1],[2]
Segment profit	7,081	[1],[2]	6,844	[1],[2]
Depreciation and amortization expense	3,175	[1],[2]	3,042	[1],[2]
Capital expenditures	(290)	[1],[2]	(736)	[1],[2]
Total assets	230,597	[1],[2],[3]	190,671	[1],[2],[3]
Long-lived assets	105,373	[1],[2],[3]	92,642	[1],[2],[3]
AUSTRALIA
2013
Revenues	17,419	[1],[2]	16,337	[1],[2]
Segment profit	3,877	[1],[2]	3,957	[1],[2]
Depreciation and amortization expense	2,636	[1],[2]	2,624	[1],[2]
Capital expenditures	(20)	[1],[2]	(104)	[1],[2]
Total assets	100,373	[1],[2],[3]	102,578	[1],[2],[3]
Long-lived assets	$ 88,856	[1],[2],[3]	$ 92,189	[1],[2],[3]

[1] For segment purposes, the Company defines segment profit as earnings before interest expenses, income taxes, depreciation and amortization, sharebasedcompensation expenses, acquisition related transaction costs and other expenses. A consolidated reconciliation from segment profit to income fromoperations is included below.

[2] Long-lived assets are noncurrent assets excluding deferred tax assets and deferred financing costs.

[3] Total assets and long-lived assets include goodwill. Goodwill recorded in connection with certain tax benefits to be realized in the Company's U.S. incometax returns has been reflected in the United States segment.