Debt (Details)				9 Months Ended
	Sep. 30, 2012 USD ($)	Sep. 30, 2012 Dansensor USD ($)	Sep. 30, 2012 Dansensor DKK	Sep. 30, 2012 Secured term note payable USD ($)	Sep. 30, 2012 Revolving line of credit USD ($)	Sep. 30, 2012 Seller financed secured note payable USD ($) item	Sep. 30, 2012 Seller financed secured note payable DKK	Sep. 30, 2012 Bank term note payable and seller financed secured note payable USD ($)
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 the Dansensor stock	$ 3,135,415
Seller financed note payable (Seller Note), with interest at 3.46%, payable in semi-annual principal and interest payments totaling $844,000 beginning October 2, 2012 through April 2, 2015, collateralized by 65% of the outstanding shares of Dansensor.	4,195,067
Long-term notes payable, current and noncurrent	7,330,482							7,330,482
Less: current portion of long-term notes payable	2,457,497
Total long-term notes payable	4,872,985
Fixed interest rate (as a percent)				3.46%		3.46%	3.46%
Monthly principal installments				72,917
Semi-annual installments payable of principal and interest						844,000
Maximum borrowing capacity		1,724,000	10,000,000		5,000,000
Reference rate					one-month LIBOR
Basis spread over reference rate (as a percent)					1.75%
Interest rate at the end of period (as a percent)					2.00%
Outstanding revolving line of credit		41,500			4,500,000
Interest rate charged on borrowings (as a percent)		3.85%	3.85%
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%	65.00%
Percentage of common stock secured for debt before amendment						100.00%	100.00%
Future minimum principal payments of the long- term notes payable
2012								992,022
2013								2,507,448
2014								2,564,419
2015								974,941
2016								291,652
Total	$ 7,330,482							$ 7,330,482