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Property and equipment (Tables)

12 Months Ended

Dec. 31, 2012

	2012			2011

Survey equipment	$	623,081		$	610,230
Furniture and other equipment		528,420			526,105
Computers and software		1,080,302			1,046,915
Leasehold improvements		382,157			382,157
		2,613,960			2,565,407
Less accumulated depreciation, amortization and impairment		(2,286,121	)		(2,161,106	)

	$	327,839		$	404,301

Furniture and other equipment under capital lease agreements

Included in furniture and other equipment are assets held under capital lease agreements which have a net book value as follows:

	2012		2011

Cost	$	-	$	35,000
Accumulated amortization		-		(22,028	)
	$	-	$	12,972

- Definition

Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

+ References+ Details