Note 1 - Summary of Significant Accounting Policies (Detail) - Estimated Useful Lives	12 Months Ended
	Dec. 31, 2012
Building and Building Improvements [Member] | Minimum [Member]
Property and equipment, useful life	5
Building and Building Improvements [Member] | Maximum [Member]
Property and equipment, useful life	40
Equipment [Member] | Minimum [Member]
Property and equipment, useful life	5
Equipment [Member] | Maximum [Member]
Property and equipment, useful life	15
Furniture and Fixtures [Member] | Minimum [Member]
Property and equipment, useful life	3
Furniture and Fixtures [Member] | Maximum [Member]
Property and equipment, useful life	10