Property and Equipment - Summary (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2012
Property, Plant and Equipment [Line Items]
Cost	$ 2,852,924	$ 3,220,300
Accumulated depreciation	2,111,343	2,461,516
Property and equipment, net	741,581	758,784
Automobiles
Property, Plant and Equipment [Line Items]
Cost	537,677	618,320
Accumulated depreciation	352,249	462,551
Property and equipment, net	185,428	155,769
Equipment
Property, Plant and Equipment [Line Items]
Cost	795,594	1,008,023
Accumulated depreciation	511,405	711,316
Property and equipment, net	284,189	296,707
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Cost	428,435	535,595
Accumulated depreciation	337,767	437,218
Property and equipment, net	90,668	98,377
Leasehold improvements
Property, Plant and Equipment [Line Items]
Cost	1,091,218	1,058,362
Accumulated depreciation	909,922	850,431
Property and equipment, net	$ 181,296	$ 207,931

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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