Property and Equipment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 14,306,900	$ 12,834,017
Less: accumulated depreciation	9,233,033	8,727,406
Property and equipment, net	5,073,867	4,106,611
Depreciation expense	667,900	637,000
Land and land improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	677,113	580,612
Buildings
Property, Plant and Equipment [Line Items]
Property and equipment, gross	4,178,158	4,149,078
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	7,946,039	7,011,943
Rental equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,505,590	$ 1,092,384