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Pension Benefits (Details 1) (USD $)	Mar. 31, 2013
US Plan [Member]
Fair value hierarchy of plan assets
Fair value of plan assets	$ 2,157,666
Canadian Plan [Member]
Fair value hierarchy of plan assets
Fair value of plan assets	1,296,318
Cash and cash equivalents [Member] \| US Plan [Member] \| Level 1 [Member]
Fair value hierarchy of plan assets
Fair value of plan assets	94,009
Cash and cash equivalents [Member] \| Canadian Plan [Member] \| Level 1 [Member]
Fair value hierarchy of plan assets
Fair value of plan assets	11,440
Mutual funds [Member] \| US Plan [Member] \| Level 1 [Member]
Fair value hierarchy of plan assets
Fair value of plan assets	270,462
Mutual funds [Member] \| Canadian Plan [Member] \| Level 1 [Member]
Fair value hierarchy of plan assets
Fair value of plan assets	1,284,878
Corporate/Government Bonds [Member] \| US Plan [Member] \| Level 1 [Member]
Fair value hierarchy of plan assets
Fair value of plan assets	745,822
Corporate/Government Bonds [Member] \| Canadian Plan [Member] \| Level 1 [Member]
Fair value hierarchy of plan assets
Fair value of plan assets
Equities [Member] \| US Plan [Member] \| Level 1 [Member]
Fair value hierarchy of plan assets
Fair value of plan assets	1,047,373
Equities [Member] \| Canadian Plan [Member] \| Level 1 [Member]
Fair value hierarchy of plan assets
Fair value of plan assets

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

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