Note 16 - Employee Benefit Plans (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 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, Employer Discretionary Contribution Amount	182	183
Defined Contribution Plan, Cost Recognized	300	300
Profit Sharing Contribution Cumulative Contribution To Date	2,153
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
Defined Contribution Plan, Employer Discretionary Contribution Amount	81	81
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