Note 6 - Pension Benefits (Details) - Fair Value Hierarchy of Plan Assets (USD $)	Sep. 30, 2013
Cash and Cash Equivalents [Member] | U.S. Plan [Member] | Fair Value, Inputs, Level 1 [Member]
Note 6 - Pension Benefits (Details) - Fair Value Hierarchy of Plan Assets [Line Items]
Fair Value of Plan Assets	$ 102,515
Cash and Cash Equivalents [Member] | Canadian Plan [Member] | Fair Value, Inputs, Level 1 [Member]
Note 6 - Pension Benefits (Details) - Fair Value Hierarchy of Plan Assets [Line Items]
Fair Value of Plan Assets	11,295
Mutual Funds [Member] | U.S. Plan [Member] | Fair Value, Inputs, Level 1 [Member]
Note 6 - Pension Benefits (Details) - Fair Value Hierarchy of Plan Assets [Line Items]
Fair Value of Plan Assets	263,456
Mutual Funds [Member] | Canadian Plan [Member] | Fair Value, Inputs, Level 1 [Member]
Note 6 - Pension Benefits (Details) - Fair Value Hierarchy of Plan Assets [Line Items]
Fair Value of Plan Assets	1,268,527
Corporate Or Government Bonds [Member] | U.S. Plan [Member] | Fair Value, Inputs, Level 1 [Member]
Note 6 - Pension Benefits (Details) - Fair Value Hierarchy of Plan Assets [Line Items]
Fair Value of Plan Assets	680,378
Equities [Member] | U.S. Plan [Member] | Fair Value, Inputs, Level 1 [Member]
Note 6 - Pension Benefits (Details) - Fair Value Hierarchy of Plan Assets [Line Items]
Fair Value of Plan Assets	1,030,949
U.S. Plan [Member]
Note 6 - Pension Benefits (Details) - Fair Value Hierarchy of Plan Assets [Line Items]
Fair Value of Plan Assets	2,077,298
Canadian Plan [Member]
Note 6 - Pension Benefits (Details) - Fair Value Hierarchy of Plan Assets [Line Items]
Fair Value of Plan Assets	$ 1,279,822