Note 10 - Inventory (Detail) - Inventory (Parentheticals) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Current Inventory Net of Allowance - Work in Process (Member)
Inventory Allowances	$ 1,573,000	$ 1,144,000
Current Inventory Net of Allowance - Raw Materials (Member)
Inventory Allowances	0	25,000
NonCurrent Inventory Net of Allowance (Member)
Inventory Allowances	$ 1,282,000	$ 83,000