Note 7 - Components of Working Capital Accounts (Tables)

12 Months Ended

Dec. 31, 2013

Disclosure Text Block Supplement [Abstract]

Schedule of Inventory, Current [Table Text Block]

	December 31, 2013		December 31, 2012
Inventories
Work-in-progress	$	8,748	$	8,223
Finished goods		2,973		2,358
Supplies and other		4,083		4,337
	$	15,804	$	14,918
Accrued liabilities
Accrued payroll, commission and benefits	$	278,641	$	222,671
Accrued interest		3,584		1,540
Customer advances		5,505		4,769
Acquisition consideration payable		25,736		658
Contingent acquisition consideration payable		122		351
Other		78,911		83,223
	$	392,499	$	313,212