Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenue
Products sales and leasing	$ 6,233,706	$ 3,268,737
Shipping and installation revenue	1,492,663	599,253
Royalties	328,715	332,135
Total revenue	8,055,084	4,200,125
Cost of goods sold	6,777,091	3,670,133
Gross profit	1,277,993	529,992
Operating expenses
General and administrative expenses	833,811	874,707
Selling expenses	590,806	504,014
Total operating expenses	1,424,617	1,378,721
Gain on sale of assets	5,868	5,254
Other income	6,893	10,607
Operating income (loss)	(133,863)	(832,868)
Interest income (expense)
Interest expense	(28,149)	(26,993)
Interest income	9,235	492
Total other expense	(18,914)	(26,501)
Loss before income tax benefit	(152,777)	(859,369)
Income tax expense (benefit)	63,000	335,000
Net income (loss)	$ (89,777)	$ (524,369)
Basic and Diluted earnings (loss) per share (in dollars per share)	$ (0.02)	$ (0.11)
Weighted average number of common shares outstanding:
Basic and Diluted (in shares)	4,919,548	4,891,815