Note 8 - Internal Use Software (Detail) - Roll-forward of Capitalized Internal Use Software (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Capitalized Internal Use Software	$ 514
Accumulated amortization	(571)
	5,540	[1]
	(57)
	5,483
Begining Balance [Member]
Capitalized Internal Use Software	12,905
Accumulated amortization	(7,365)
Accumulated amortization	(7,365)
	5,540
Ending Balance [Member]
Capitalized Internal Use Software	13,419
Accumulated amortization	(7,936)
Accumulated amortization	(7,936)
	$ 5,483

[1] Derived from audited financial statements included in the 2012 Annual Report.