Note 16 - Quarterly Results (Unaudited) (Detail) - Summary quarterly results - unaudited: (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
2012
Revenue	$ 316,974		$ 322,597		$ 272,065
Gross profit	49,877		56,630		43,890
Operating income	(27,701)		26,369		20,815
Net income	(24,235)		11,457		12,705
Earnings (loss) per share:(5)
Basic (in Dollars per share)	$ (2.34)		$ 1.13		$ 1.28
Diluted (in Dollars per share)	$ (2.34)		$ 1.12		$ 1.26
First Quarter [Member]
2012
Revenue	85,869		69,524
Gross profit	13,596		10,764
Operating income	5,674		4,721
Net income	1,791		2,708
Earnings (loss) per share:(5)
Basic (in Dollars per share)	$ 0.17		$ 0.27
Diluted (in Dollars per share)	$ 0.17		$ 0.27
Second Quarter [Member]
2012
Revenue	80,834	[1],[2]	68,472	[1],[2]
Gross profit	12,527	[1],[2]	10,427	[1],[2]
Operating income	(6,914)	[1],[2]	3,244	[1],[2]
Net income	(6,079)	[1],[2]	1,437	[1],[2]
Earnings (loss) per share:(5)
Basic (in Dollars per share)	$ (0.59)	[1],[2]	$ 0.14	[1],[2]
Diluted (in Dollars per share)	$ (0.59)	[1],[2]	$ 0.14	[1],[2]
Third Quarter [Member]
2012
Revenue	76,767	[1],[3]	96,379	[1],[3]
Gross profit	11,223	[1],[3]	17,438	[1],[3]
Operating income	(32,092)	[1],[3]	8,844	[1],[3]
Net income	(20,594)	[1],[3]	3,278	[1],[3]
Earnings (loss) per share:(5)
Basic (in Dollars per share)	$ (1.99)	[1],[3]	$ 0.32	[1],[3]
Diluted (in Dollars per share)	$ (1.99)	[1],[3]	$ 0.32	[1],[3]
Fourth Quarter [Member]
2012
Revenue	73,504	[3],[4]	88,222	[3],[4]
Gross profit	12,531	[3],[4]	18,001	[3],[4]
Operating income	5,631	[3],[4]	9,560	[3],[4]
Net income	647	[3],[4]	4,034	[3],[4]
Earnings (loss) per share:(5)
Basic (in Dollars per share)	$ 0.06	[3],[4]	$ 0.39	[3],[4]
Diluted (in Dollars per share)	$ 0.06	[3],[4]	$ 0.39	[3],[4]
Fiscal Year [Member]
2012
Revenue	316,974		322,597
Gross profit	49,877		56,630
Operating income	(27,701)		26,369
Net income	$ (24,235)		$ 11,457
Earnings (loss) per share:(5)
Basic (in Dollars per share)	$ (2.34)		$ 1.13
Diluted (in Dollars per share)	$ (2.34)		$ 1.12

[1] The results for the second and third quarter of 2012 contain pre-tax goodwill impairment charges of $12.0 million and $36.6 million, respectively.

[2] The results for the second quarter of 2011 contain pre-tax transaction-related costs of $2.2 million.

[3] The results for the third and fourth quarter of 2011 contain the financial results of HPTi.

[4] Basic and diluted earnings per share is computed independently for each of the quarters presented; accordingly, the sum of the quarterly earnings per share may not equal the total computed for the year. The components of basic and diluted earnings per share are also computed independently for each quarter presented; accordingly amounts may not add due to rounding.