Note 2 - Summary of Significant Accounting Policies (Details) (USD $)	1 Months Ended	3 Months Ended		12 Months Ended				3 Months Ended									1 Months Ended	3 Months Ended							12 Months Ended				3 Months Ended		3 Months Ended					3 Months Ended
	Jun. 28, 2013	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Jan. 15, 2012	Jul. 19, 2011	Mar. 31, 2014 Employee Stock Option [Member] Cost of Sales [Member]	Mar. 31, 2013 Employee Stock Option [Member] Cost of Sales [Member]	Mar. 31, 2014 Employee Stock Option [Member] Selling, General and Administrative Expenses [Member]	Mar. 31, 2013 Employee Stock Option [Member] Selling, General and Administrative Expenses [Member]	Mar. 31, 2014 Employee Stock Option [Member]	Mar. 31, 2013 Employee Stock Option [Member]	Mar. 31, 2014 Restricted Stock and RSUs [Member] Selling, General and Administrative Expenses [Member]	Mar. 31, 2013 Restricted Stock and RSUs [Member] Selling, General and Administrative Expenses [Member]	Mar. 31, 2014 Restricted Stock and RSUs [Member]	Feb. 28, 2014 Restricted Stock [Member]	Mar. 31, 2013 Restricted Stock [Member]	Mar. 31, 2014 Restricted Stock Units (RSUs) [Member]	Mar. 31, 2013 Restricted Stock Units (RSUs) [Member]	Mar. 31, 2014 Stock Compensation Plan [Member] Selling, General and Administrative Expenses [Member]	Mar. 31, 2013 Stock Compensation Plan [Member] Selling, General and Administrative Expenses [Member]	Mar. 31, 2014 Interest and Other Expenses [Member]	Mar. 31, 2014 Customer Concentration Risk [Member] Accounts Receivable [Member]	Dec. 31, 2013 Customer Concentration Risk [Member] Accounts Receivable [Member]	Mar. 31, 2014 United States [Member]	Mar. 31, 2014 UNITED KINGDOM	Dec. 31, 2013 UNITED KINGDOM	Mar. 31, 2014 2014 Acquisitions [Member]	Jun. 30, 2012 Exchange Notes [Member]	Mar. 31, 2014 Senior Unsecured Notes [Member]	Mar. 31, 2013 Senior Unsecured Notes [Member]	Mar. 31, 2014 Senior Secured Revolving Credit Facility [Member]	Mar. 31, 2013 Senior Secured Revolving Credit Facility [Member]	Jul. 19, 2011 Senior Secured Revolving Credit Facility [Member]	Mar. 31, 2014 Senior Unsecured Notes [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Cash Equivalents, at Carrying Value		$ 0		$ 0
Allowance for Doubtful Accounts Receivable		7,900,000		7,200,000
Concentration Risk, Percentage																								11.00%	11.00%
Cash and Cash Equivalents, at Carrying Value		8,504,000	7,709,000	12,829,000	8,627,000																					1,200,000
Cash, FDIC Insured Amount		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	30,000	225,000
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	24 months																																5 years			8 years
Interest Expense		580,000	571,000
Deferred Revenue																											6,000,000	5,400,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares)		7,800,000	10,400,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures (in Shares)		448,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)		$ 15.49
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value (in Dollars per share)		$ 6,900,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period												3 years
Allocated Share-based Compensation Expense								694,000	728,000	2,200,000	2,100,000	2,800,000	2,900,000	2,000,000	803,000						539,000	446,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized												13,100,000							13,500,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition												2 years 36 days							1 year 255 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value		118,849,000										19,100,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value																2,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period (in Shares)		139,659																0		0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)		293,304															83,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability		6,500,000		373,000																									7,100,000
Increase Decrease In Interest And Other Expense Related To Contingent Consideration																							83,000
Business Combination Contingent Consideration Settled In Cash				333,000
Business Combination Contingent Consideration Change Related To Restricted With Shares Issued Previously				$ 110,000