Note 11 - Employee Benefit Plans (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent	10.00%
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Amount	$ 5
Defined Contribution Plan Employer Matching Contribution Vesting Period	4 years
Defined Contribution Plan, Cost Recognized	225	225
Profit Sharing Contribution Cumulative Contribution To Date	2,078
Minimum Stock Price before Cash is Used to Fund Contributions (in Dollars per share)	$ 3.00
Temptronic Facility [Member]
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent	6.00%
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Amount	3
Maximum Contribution Per Dollar	0.50
Maximum Aggregate [Member]
Profit Sharing Contribution Total Planned Contribution	3,000
Maximum Annual [Member]
Profit Sharing Contribution Annual Planned Contribution	$ 300