Note 2 - Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended				3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended			6 Months Ended				1 Months Ended		6 Months Ended					6 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Jan. 15, 2012	Jul. 19, 2011	Jun. 30, 2014 Cost of Sales [Member] Employee Stock Option [Member]	Jun. 30, 2013 Cost of Sales [Member] Employee Stock Option [Member]	Jun. 30, 2014 Cost of Sales [Member] Employee Stock Option [Member]	Jun. 30, 2013 Cost of Sales [Member] Employee Stock Option [Member]	Jun. 30, 2014 Selling, General and Administrative Expenses [Member] Employee Stock Option [Member]	Jun. 30, 2013 Selling, General and Administrative Expenses [Member] Employee Stock Option [Member]	Jun. 30, 2014 Selling, General and Administrative Expenses [Member] Employee Stock Option [Member]	Jun. 30, 2013 Selling, General and Administrative Expenses [Member] Employee Stock Option [Member]	Jun. 30, 2014 Selling, General and Administrative Expenses [Member] Restricted Stock and RSUs [Member]	Jun. 30, 2013 Selling, General and Administrative Expenses [Member] Restricted Stock and RSUs [Member]	Jun. 30, 2014 Selling, General and Administrative Expenses [Member] Restricted Stock and RSUs [Member]	Jun. 30, 2013 Selling, General and Administrative Expenses [Member] Restricted Stock and RSUs [Member]	Jun. 30, 2014 Selling, General and Administrative Expenses [Member] Stock Compensation Plan [Member]	Jun. 30, 2013 Selling, General and Administrative Expenses [Member] Stock Compensation Plan [Member]	Jun. 30, 2014 Selling, General and Administrative Expenses [Member] Stock Compensation Plan [Member]	Jun. 30, 2013 Selling, General and Administrative Expenses [Member] Stock Compensation Plan [Member]	Jun. 30, 2014 Interest and Other Expenses [Member]	Jun. 30, 2014 Employee Stock Option [Member]	Jun. 30, 2013 Employee Stock Option [Member]	Jun. 30, 2014 Employee Stock Option [Member]	Jun. 30, 2013 Employee Stock Option [Member]	Jun. 30, 2014 Restricted Stock and RSUs [Member]	Jun. 30, 2014 Restricted Stock Units (RSUs) [Member]	Feb. 28, 2014 Restricted Stock [Member]	Jun. 30, 2012 Exchange Notes [Member]	Jun. 30, 2014 Senior Unsecured Notes [Member]	Jun. 30, 2013 Senior Unsecured Notes [Member]	Jun. 30, 2014 Senior Secured Revolving Credit Facility [Member]	Jun. 30, 2013 Senior Secured Revolving Credit Facility [Member]	Jul. 19, 2011 Senior Secured Revolving Credit Facility [Member]	Jun. 30, 2014 Senior Unsecured Notes [Member]	Jun. 30, 2014 2014 Acquisitions [Member]	Jun. 30, 2014 Accounts Receivable [Member] Customer Concentration Risk [Member]	Dec. 31, 2013 Accounts Receivable [Member] Customer Concentration Risk [Member]	Jun. 30, 2014 United States [Member]	Jun. 30, 2014 UNITED KINGDOM	Dec. 31, 2013 UNITED KINGDOM
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Cash Equivalents, at Carrying Value	$ 0		$ 0		$ 0
Allowance for Doubtful Accounts Receivable	8,600,000		8,600,000		7,200,000
Concentration Risk, Percentage																																									13.00%	11.00%
Cash and Cash Equivalents, at Carrying Value	7,891,000	9,167,000	7,891,000	9,167,000	12,829,000	8,627,000																																					1,000,000
Cash, FDIC Insured Amount	250,000		250,000
Impairment of Long-Lived Assets Held-for-use			0		0
Deferred Finance Costs, Gross																																		7,100,000		8,300,000
Deferred Financing Costs Incurred																																		0	22,000	241,000	30,000
Senior Notes								250,000,000																														250,000,000
Debt Instrument, Interest Rate, Stated Percentage							9.00%	9.00%																									9.00%					9.00%
Debt Instrument, Term																																				5 years			8 years
Interest Expense	580,000	502,000	1,200,000	1,100,000
Deferred Revenue																																												5,500,000	5,400,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares)		9,900,000		9,900,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures (in Shares)			453,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)			$ 15.50
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value (in Dollars per share)			$ 7,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period																												3 years
Allocated Share-based Compensation Expense									492,000	719,000	1,200,000	1,400,000	1,500,000	2,200,000	3,500,000	4,400,000	2,200,000	961,000	4,300,000	1,800,000	437,000	446,000	975,000	892,000		2,000,000	2,900,000	4,700,000	5,800,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized																										10,600,000		10,600,000			10,200,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition																												2 years			1 year 255 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	90,039,000		90,039,000																							35,700,000		35,700,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value																														5,600,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)			296,274																													83,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability			6,800,000		373,000																																			7,100,000
Increase Decrease In Interest And Other Expense Related To Contingent Consideration																									207,000
Business Combination Contingent Consideration Settled In Cash					333,000
Business Combination Contingent Consideration Change Related To Restricted With Shares Issued Previously					$ 110,000