Note 7 - Commitments and Contingencies (Detail) (USD $)	12 Months Ended					12 Months Ended		12 Months Ended			12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Subsequent Event [Member]	Dec. 31, 2012 Foreign Withholding Claims 2006 And 2008 [Member]	Dec. 31, 2010 Foreign Withholding Claims 2006 And 2008 [Member]	Dec. 31, 2011 Foreign Withholding Claims [Member]	Dec. 31, 2008 Foreign Withholding Claims [Member]	Dec. 31, 2011 Penalties And Interest [Member]	Dec. 31, 2012 Penalties And Interest 2006 And 2008 [Member]	Dec. 31, 2012 Non-Compete Provision [Member]	Dec. 31, 2012 Minimum [Member]	Dec. 31, 2012 Maximum [Member]	Dec. 31, 2012 Non-Compete Provisions and Contractual Arrangements with Former Employees [Member]
Employment Agreement Term											1 year	3 years
Due to Employees	$ 2,988,000
Employment Agreement Non-Compete Term Minimum	6
Employment Agreement Non-Compete Term Maximum	1
Contractual Obligation, Due in Next Twelve Months										2,232,000
Compensation													540,000
Loss Contingency, Estimate of Possible Loss				428,000	726,000		197,000		88,000
Loss Contingency, Loss in Period						223,000		26,000	446,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	509,000	(111,000)	446,000
Business Acquisition, Contingent Consideration, at Fair Value	$ 63,000