Commitments and Contingencies (Details Textual)	9 Months Ended			0 Months Ended			9 Months Ended	1 Months Ended			9 Months Ended
	Sep. 30, 2013 USD ($)	Sep. 30, 2012 USD ($)	Dec. 31, 2012 USD ($)	Jan. 15, 2013 Bellco [Member] EUR (€)	Jan. 15, 2012 Bellco [Member] EUR (€)	Jul. 01, 2011 Bellco [Member] EUR (€)	Sep. 30, 2013 Bellco [Member]	May 23, 2013 Medica S.p.A [Member] EUR (€)	Jan. 25, 2013 Medica S.p.A [Member] EUR (€)	Apr. 23, 2012 Medica S.p.A [Member] EUR (€)	Sep. 30, 2013 Medica S.p.A [Member] USD ($)	Sep. 30, 2013 Medica S.p.A [Member] EUR (€)
Commitments And Contingencies [Line Items]
License agreement revenue paid year one						€ 500,000
License agreement revenue paid year two					750,000
License agreement revenue paid in current year				600,000
Number of units under first tier royalty receivable							103,000
First tier royalty per unit							4.50
Second tier royalty per unit							4.00
Minimum quarterly unit sales targets							15,000
License agreement product purchases in year one												300,000
License agreement product purchases in year two												500,000
License agreement product purchases in year three												750,000
License agreement first installment payment										500,000
License agreement second installment payment									1,000,000
License agreement final installment payment								400,000
License agreement options to purchase shares										300,000
Purchase commitment												477,000
Fair value of stock options granted to Medica	0	273,000									273,000
Other assets, net of accumulated amortization	1,947,000		2,109,000
Accumulated amortization	303,000
Amortization of Other Deferred Charges	162,000
Amortization expense, remainder of year	53,000
Amortization expense, years two and three	$ 210,000
Royalty rate	3.00%