Note 12 - Employee Benefit Plans (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
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	150
Profit Sharing Contribution Cumulative Contribution To Date	2,003
Profit Sharing Contribution Minimum Price Per Share For Use Of Stock (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