Note 10 - Debt (Tables)

6 Months Ended

Jun. 30, 2013

Disclosure Text Block Supplement [Abstract]

Schedule of Debt [Table Text Block]

	June 30, 2013		December 31, 2012
	(in thousands)
$170.9 million Convertible Notes, 6.5%, due March 2015, net of discount of ($13.8) million at June 30, 2013 and ($17.4) million at December 31, 2012	$	157,132	$	153,479
$75.0 million Secured Debt Facility, 3-month LIBOR plus 9%, due July 2015		-		35,000
$40.0 million Secured Debt Facility, 3-month LIBOR plus 8%, due January 2015		40,000		32,727
		197,132		221,206
Less: Current maturity of long-term debt		17,000		24,046
Long-term debt, net	$	180,132	$	197,160

Schedule of Long-term Debt Instruments [Table Text Block]

Year
2013	$	5,556
2014		11,111
2015		176,493
Total estimated remaining cash payments related to the 2015 Convertible Notes	$	193,160

Year
2013	$	9,574
2014		25,069
2015		9,186
Total estimated remaining cash payments related to the $40.0 million secured debt facility	$	43,829

Schedule Of Convertible Debt Interest Expense [Table Text Block]

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
	(in thousands)
Interest expense related to the contractual interest coupon	$	2,777	$	2,777	$	5,555	$	5,555
Amortization of debt discount expense		1,862		1,656		3,653		3,251
Amortization of debt issue costs		250		238		495		473
Interest expense related to the 2015 Convertible Notes	$	4,889	$	4,671	$	9,703	$	9,279

Schedule of Interest Expense [Table Text Block]

	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
	(in thousands)
Interest expense	$	6,652		$	7,840		$	13,569		$	17,022
Capitalized interest expense		(2,372	)		(3,760	)		(4,991	)		(6,732	)
Interest expense, net	$	4,280		$	4,080		$	8,578		$	10,290