Note 2 - Summary of Significant Accounting Policies (Details) (USD $)	0 Months Ended	1 Months Ended		12 Months Ended									12 Months Ended													12 Months Ended					12 Months Ended
	May 06, 2011	Jun. 28, 2013	Jul. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jan. 15, 2012	Jul. 19, 2011	Jul. 07, 2011	Feb. 09, 2011	Dec. 31, 2010	Nov. 02, 2010	Dec. 31, 2011 Employees and Non-Employee Directors [Member] Majority of Stock Option Awards [Member]	Dec. 31, 2012 Employees and Non-Employee Directors [Member]	Dec. 31, 2011 Employees and Non-Employee Directors [Member]	Dec. 31, 2013 Certain Non-Employee Members of the Board of Directors [Member] Restricted Stock [Member]	Dec. 31, 2012 Certain Non-Employee Members of the Board of Directors [Member] Restricted Stock [Member]	Dec. 31, 2011 Certain Non-Employee Members of the Board of Directors [Member] Restricted Stock [Member]	Dec. 31, 2013 Cash Paid to Settle 2009 and 2010 Acquisitions [Member]	Dec. 31, 2013 Acquisition in Year 2013 [Member]	Dec. 31, 2013 Employee Stock Option [Member] Cost of Sales [Member]	Dec. 31, 2013 Employee Stock Option [Member] General and Administrative Expense [Member]	Dec. 31, 2013 Employee Stock Option [Member]	Dec. 31, 2012 Employee Stock Option [Member]	Dec. 31, 2011 Employee Stock Option [Member]	Dec. 31, 2013 Restricted Stock [Member] Selling, General and Administrative Expenses [Member]	Dec. 31, 2012 Restricted Stock [Member] Selling, General and Administrative Expenses [Member]	Dec. 31, 2011 Restricted Stock [Member] Selling, General and Administrative Expenses [Member]	Dec. 31, 2012 Restricted Stock [Member]	Dec. 31, 2013 Restricted Stock [Member]	Dec. 31, 2012 Options and Warrants [Member]	Dec. 31, 2011 Options and Warrants [Member]	Dec. 31, 2011 Equity Component of Earnout Obligation [Member]	Dec. 31, 2011 Unsubordinated Unsecured Note [Member]	Dec. 31, 2012 Cost of Sales [Member]	Dec. 31, 2011 Cost of Sales [Member]	Dec. 31, 2012 General and Administrative Expense [Member]	Dec. 31, 2011 General and Administrative Expense [Member]	Dec. 31, 2013 Interest and Other Expenses [Member]	Dec. 31, 2013 Senior Secured Revolving Credit Facility [Member]	Dec. 31, 2012 Senior Secured Revolving Credit Facility [Member]	Dec. 31, 2011 Senior Secured Revolving Credit Facility [Member]	Dec. 31, 2013 Senior Unsecured Notes [Member]	Dec. 31, 2012 Senior Unsecured Notes [Member]	Dec. 31, 2011 Senior Unsecured Notes [Member]	Dec. 31, 2013 Customer Concentration Risk [Member] Accounts Receivable [Member]	Dec. 31, 2013 United States [Member]	Nov. 30, 2010 Accrued [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Allowance for Doubtful Accounts Receivable				$ 7,200,000	$ 4,400,000
Concentration Risk, Percentage																																														11.00%
Cash and Cash Equivalents, at Carrying Value				12,829,000	8,627,000	8,416,000					33,624,000																																				760,000
Cash, FDIC Insured Amount				250,000
Deferred Finance Costs, Gross																																											7,100,000					8,100,000
Deferred Financing Costs Incurred																								3																56,000	654,000	3,000,000		420,000	6,700,000
Line of Credit Facility, Increase (Decrease), Other, Net	55,000,000		(37,500,000)
Line of Credit Facility, Maximum Borrowing Capacity	300,000,000		262,500,000						262,500,000	245,000,000		180,000,000
Payments of Debt Extinguishment Costs			621,000
Proceeds from Unsecured Notes Payable			250,000,000			250,000,000
Debt Instrument, Interest Rate, Stated Percentage			9.00%				9.00%	9.00%
Debt Instrument, Term		24 months																																						5 years			8 years
Interest Expense					2,200,000	1,900,000
Deferred Rent Credit				2,000,000
Deferred Revenue				7,000,000	10,000,000	2,600,000
Deferred Costs, Current				5,300,000	7,500,000	1,600,000
Marketing and Advertising Expense					2,900,000	2,200,000
Facility Lease Terms Maximum Period				10
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares)																															68,000	7,800,000	10,000,000	8,400,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures (in Shares)					100,000										3,200,000								621,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)														$ 4.60	$ 7.69								$ 8.55
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value (in Dollars per share)														$ 13,500,000	$ 24,400,000								$ 5,300,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period					2 years								3 years
Share-based Compensation				17,157,000	13,756,000	7,834,000								12,000,000	7,400,000						2,900,000	9,200,000	12,100,000			4,000,000	662,000	456,000							3,000,000	2,000,000	9,000,000	5,400,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)				621,100	2,933,701	3,173,900																		2,900,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized																7,500,000	2,300,000						10,000,000	20,400,000						75,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition																1 year 328 days	2 years 6 months						1 year 146 days	1 year 73 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value				88,008,000																			26,700,000	1,300,000	7,400,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number (in Shares)				4,737,944																				4,200,000	2,300,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price (in Dollars per share)				$ 11.29																				$ 9.62	$ 6.06
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)				$ 15.78	$ 13.73	$ 13.62										$ 1,000,000	$ 553,000	$ 389,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period (in Shares)				77,513	40,281	64,186																							1,100,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability				4,000,000																4,400,000
Increase Decrease In Interest And Other Expense Related To Contingent Consideration																																							35,000
Business Combination Contingent Consideration Settled In Cash				343,000
Business Combination Contingent Consideration Change Related To Restricted With Shares Issued Previously																			$ 110,000