Debt (Details)				12 Months Ended		0 Months Ended		12 Months Ended
	Dec. 31, 2012 USD ($)	Dec. 31, 2012 Dansensor USD ($)	Dec. 31, 2012 Dansensor DKK	Dec. 31, 2012 Secured term note payable USD ($)	Dec. 31, 2012 Revolving line of credit USD ($)	Jun. 28, 2012 Seller financed secured note payable USD ($) item	Jun. 28, 2012 Seller financed secured note payable DKK	Dec. 31, 2012 Seller financed secured note payable USD ($)	Dec. 31, 2012 Bank term note payable and seller financed secured note payable USD ($)	Dec. 31, 2012 Capital leases USD ($)
Bank Financing
Note payable to the bank, with interest at 3.46%, payable in monthly principal installments of $72,917 plus interest through March 28, 2016, collateralized by all the assets of the Company except Dansensor stock	$ 2,916,664
Seller financed note payable (Seller Note), with interest at 3.46%, payable in semi-annual principal and interest payments totaling $891,000 beginning October 2, 2012 through April 2, 2015, collateralized by 65% of the outstanding stock of Dansensor.	3,517,067
Total long-term notes payable	6,493,017								6,493,017	59,286
Less current portion of long-term notes payable	2,566,154
Total long-term notes payable	3,926,863
Fixed interest rate (as a percent)				3.46%				3.46%
Monthly principal installments				72,917
Semi-annual installments payable of principal and interest								891,000
Maximum borrowing capacity		1,700,000	10,000,000		5,000,000
Reference rate					one-month LIBOR
Basis spread over reference rate (as a percent)					0.0175%
Interest rate at the end of period (as a percent)					2.00%
Outstanding revolving line of credit		652,000			4,675,000
Interest rate charged on borrowings (as a percent)		4.35%	4.35%
Number of pre-payments allowed by the first amendment to the credit facility agreement						2	2
Amount of each pre-payment installment						1,100,000	6,500,000
Percentage of common stock secured for debt								65.00%
Percentage of common stock secured for debt before amendment								100.00%
Future minimum principal payments of the long- term notes payable
2013									2,566,154
2014									2,625,561
2015									992,734
2016									305,797
2017									2,771
Total long-term notes payable	$ 6,493,017								$ 6,493,017	$ 59,286