A reconciliation of the current year change in valuation allowance is as follows (Details) (USD $)	Dec. 31, 2013
Increase in valuation allowance for current year increase in net operating losses:	$ 6,529,000
Increase in valuation allowance for current year increase in net operating losses:	6,529,000
Increase in valuation allowance for current year net increase in deferred tax assets other than net operating losses:	3,587,000
Decrease in valuation allowance as a result of foreign currency fluctuation	(798,000)
Decrease in valuation allowance as a result of tax attribute expiration	(1,478,000)
Increase in valuation allowance due to current year change of deferred tax assets as the result of uncertain tax positions.	514,000
Net increase (decrease) in valuation allowance	8,354,000
U.S.
Increase in valuation allowance for current year increase in net operating losses:	6,536,000
Increase in valuation allowance for current year increase in net operating losses:	6,536,000
Increase in valuation allowance for current year net increase in deferred tax assets other than net operating losses:	3,209,000
Net increase (decrease) in valuation allowance	9,745,000
Foreign
Increase in valuation allowance for current year increase in net operating losses:	(7,000)
Increase in valuation allowance for current year increase in net operating losses:	(7,000)
Increase in valuation allowance for current year net increase in deferred tax assets other than net operating losses:	378,000
Decrease in valuation allowance as a result of foreign currency fluctuation	(798,000)
Decrease in valuation allowance as a result of tax attribute expiration	(1,478,000)
Increase in valuation allowance due to current year change of deferred tax assets as the result of uncertain tax positions.	514,000
Net increase (decrease) in valuation allowance	$ (1,391,000)