Note 2 - Summary of Significant Accounting Policies (Detail) (USD $)	3 Months Ended		12 Months Ended				3 Months Ended					12 Months Ended	15 Months Ended		3 Months Ended		3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Jan. 15, 2012	Jul. 19, 2011	Mar. 31, 2013 Stock Options [Member] Cost of Sales [Member]	Mar. 31, 2013 Stock Options [Member] General and Administrative Expense [Member]	Mar. 31, 2013 Stock Options [Member]	Mar. 31, 2013 Restricted Stock [Member] General and Administrative Expense [Member]	Mar. 31, 2013 Restricted Stock [Member]	Dec. 31, 2012 Restricted Stock [Member]	Mar. 31, 2013 Options and Warrants [Member]	Mar. 31, 2013 Unsubordinated Unsecured Note [Member]	Mar. 31, 2012 Senior Secured Revolving Credit Facility [Member]	Mar. 31, 2013 Senior Secured Revolving Credit Facility [Member]	Mar. 31, 2013 Senior Unsecured Notes [Member]	Mar. 31, 2012 Senior Unsecured Notes [Member]	Mar. 31, 2013 United States [Member]	Mar. 31, 2013 Accrued [Member]
Allowance for Doubtful Accounts Receivable	$ 3,700,000			$ 4,400,000
Cash and Cash Equivalents, at Carrying Value	7,709,000	8,466,000	8,416,000	8,627,000															2,200,000
Deferred Finance Costs, Gross																402,000	7,100,000			8,100,000
Deferred Financing Costs Incurred															30,000		22,000	12,000
Proceeds from Unsecured Notes Payable			250,000,000
Debt Instrument, Interest Rate, Stated Percentage			9.00%		9.00%	9.00%
Amortization of Financing Costs	580,000	514,000
Deferred Revenue	2,400,000			12,600,000
Deferred Costs, Current	1,800,000			9,100,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares)	10,400,000												9,900,000	68,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)	365,000
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Grant Date Total Fair Value	2,400,000
Share-based Compensation	4,131,000	4,696,000					728,000	2,200,000	2,900,000		149,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized									18,800,000		7,500,000	2,300,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition											2 years 255 days	2 years 6 months
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	40,459,000								2,000,000
Stock Issued During Period, Shares, Restricted Stock Award, Gross (in Shares)	231,000									803,000
Accrued Share Based Compensation	446,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	$ 9,000