Note 10 - Pension and Other Postretirement Benefits (Details) - Summary of Net Amount Recognized on Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
Note 10 - Pension and Other Postretirement Benefits (Details) - Summary of Net Amount Recognized on Consolidated Balance Sheets [Line Items]
Non-current liabilities	$ 1,274,173	$ 2,128,210
U.S. Plan [Member]
Note 10 - Pension and Other Postretirement Benefits (Details) - Summary of Net Amount Recognized on Consolidated Balance Sheets [Line Items]
Non-current liabilities	(1,113,592)	(1,851,122)
Net amount recognized	(1,113,592)	(1,851,122)
Canadian Plan [Member]
Note 10 - Pension and Other Postretirement Benefits (Details) - Summary of Net Amount Recognized on Consolidated Balance Sheets [Line Items]
Non-current liabilities	(98,352)	(212,858)
Net amount recognized	$ (98,352)	$ (212,858)