Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Schedule of Property and Equipment

Depreciation is computed using the straight-line method over the following estimated useful lives:

	Years
Buildings		10-33
Trucks and automotive equipment		3-10
Shop machinery and equipment		3-10
Land improvements		10-15
Office equipment		3-10

Property and equipment consists of the following:
	December 31,
	2013		2012
Land and land improvements	$	598,926	$	553,063
Buildings	3,934,605		3,923,852
Machinery and equipment	8,997,995		8,299,962
Rental equipment	978,514		989,030
	14,510,040		13,765,907
Less: accumulated depreciation	10,187,045		9,716,429
	$	4,322,995	$	4,049,478