Lease Obligations (Details)	0 Months Ended	12 Months Ended
	Apr. 30, 2002	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2014 CAD	Dec. 31, 2014 Property and Equipment [Member] USD ($)	Dec. 31, 2013 Property and Equipment [Member] USD ($)
Schedule of Capital and Operating Leased Assets [Line Items]
Assets recorded under capital lease obligations						$ 3,300,000	$ 3,600,000
Accumulated depreciation related to assets under capital lease obligations						1,800,000	1,600,000
Operating Leases, Rent Expense		1,300,000	1,700,000	1,800,000
Sublease income from operating leases			100,000	300,000
Term of capital lease (in years)	20 years
Future minimum annual payments due under sale leaseback until April 2017					409,500
Future minimum annual payments due under sale leaseback from May 2018 until April 2022					452,340