Income Taxes (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Jan. 01, 2012
Operating Loss Carryforwards [Line Items]
U.S federal income tax rate	35.00%
Valuation allowance	$ (12,704,000)	$ (13,506,000)
Increase in valuation allowance	800,000
Accumulated undistributed earnings invested	12,700,000
Additional taxes (net of foreign tax credits)	600,000
Foreign operating losses carry forward	17,000,000
State tax credits	2,700,000
Deferred tax asset net of valuation allowance	3,800,000
Unrecognized tax benefits, net	2,500,000
Decrease in unrecognized tax benefits	700,000
Recognized tax benefits that will reduce company's tax rate	2,500,000
Tax exposure by sustaining disallowed deduction			15,400,000
Interest and penalties recognized	700,000	0	0
Accrued income tax examination penalties and interest	(200,000)	400,000
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Federal net operating loss carryforwards	118,400,000
Domestic Country
Operating Loss Carryforwards [Line Items]
Federal net operating loss carryforwards	$ 26,900,000