Note 4 - Stock Benefit Plans (Detail) - Stock-based compensation expenses: (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Stock-based compensation expense by caption
Stock-based compensation	$ 620	$ 25
Effect on income (loss) from continuing operations	620	25
Stock Options [Member]
Stock-based compensation expense by caption
Stock-based compensation	25	16
Effect on income (loss) from continuing operations	25	16
Restricted Stock [Member]
Stock-based compensation expense by caption
Stock-based compensation	595	9
Effect on income (loss) from continuing operations	595	9
Selling, General and Administrative Expenses [Member]
Stock-based compensation expense by caption
Stock-based compensation	620	25
Effect on income (loss) from continuing operations	$ 620	$ 25