Note 4 - Corporate Borrowings And Capital Lease Obligations (Tables)

12 Months Ended

Dec. 31, 2012

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

	December 31,
	2012			2011
Revolving Credit Agreement, 2.84% (variable interest rate)	$	25,893		$	21,142
Secured Promissory Note, 6.39% (variable interest rate), due monthly to July, 2016.		1,070			1,374
Water Cooling System Capital Lease Obligation, 2.61%, due monthly to May, 2017		5,603			6,754
Other Capital Lease Obligations, 0.61%, due monthly to October, 2013.		178			394
Total		32,744			29,664
Less revolving credit agreement		-			(21,142	)
Less current maturities of long term debt		(1,683	)		(1,670	)
Long-term debt	$	31,061		$	6,852

Contractual Obligation, Fiscal Year Maturity Schedule [Table Text Block]

					Capital Leases
Year Ending December 31,	Revolving Credit Agreement		Long-Term Debt		Minimum Lease Payments		Less Interest		Net Present Value		Total Debt		Operating Leases
2013	$	-	$	324	$	1,495	$	136	$	1,359	$	1,683	$	2,583
2014		-		346		1,316		104		1,212		1,558		1,747
2015		-		369		1,316		72		1,244		1,613		1,728
2016		-		31		1,316		39		1,277		1,308		1,639
2017		25,893		-		695		6		689		26,582		1,178
Thereafter		-		-		-		-		-		-		1,357
Total	$	25,893	$	1,070	$	6,138	$	357	$	5,781	$	32,744	$	10,232