Long-Term Debt (Narrative) (Details)	6 Months Ended			6 Months Ended						6 Months Ended								6 Months Ended
	Jun. 30, 2012 USD ($)	Jun. 30, 2011 USD ($)	May 23, 2012	Jun. 30, 2012 Edmonton Mortgage [Member] USD ($)	Jun. 30, 2012 BMO Credit Agreement [Member] CAD	Jun. 30, 2012 BMO Credit Agreement [Member] USD ($)	May 23, 2012 BMO Credit Agreement [Member] USD ($)	May 23, 2012 BMO Credit Agreement [Member] CAD	Jun. 30, 2012 CRA and CAL [Member] CAD	Jun. 30, 2012 Credit Facility A [Member] USD ($)	Jun. 30, 2012 Credit Facility A [Member] CAD	Jun. 30, 2012 Credit Facility B [Member] USD ($)	Jun. 30, 2012 Credit Facility B [Member] CAD	Jun. 30, 2012 To Be Used To Repay Edmonton Mortgage [Member] USD ($)	Jun. 30, 2012 To Be Used To Repay Edmonton Mortgage [Member] CAD	Jun. 30, 2012 Credit Facility C [Member] USD ($)	Jun. 30, 2012 Credit Facility C [Member] CAD	Jun. 30, 2012 Amortization of Deferred Financing Charges [Member] USD ($)	Jun. 30, 2011 Amortization of Deferred Financing Charges [Member] USD ($)
Long Term Debt [Line Items]
Repayment of mortgage	$ 6,300,000
Cash	2,700,000
Secured Debt						3,600,000
Principal and interest payment	6,100,000			6,100,000
Early termination penalty	200,000			200,000
Unamortized finance charges written off	100,000
Amount of credit agreement							27,500,000	28,000,000		1,000,000	1,000,000	24,500,000	25,000,000	10,800,000	11,000,000	2,000,000	2,000,000
Term of credit agreement			5 years
Line of credit facility amount drawn to repay Edmonton mortgage												3,600,000	3,700,000
Line of credit facility amount available for borrowing					24,300,000	23,800,000
Amortization of deferred financing costs	110,000	45,000																100,000	100,000
Weighted average interest rate on borrowings	17.20%	17.20%
Interest rate				7.00%		4.00%
Anticipated floating rate	4.00%
Senior funded debt to EBITDA ratio						3.00
Minimum fixed charge coverage ratio						1.20
Shareholder's equity									20,000,000
Maximum capital expenditures					4,000,000
Line of credit facility description	Longer term fixed rates of interest, up to and including the full five year term of the BMO Credit Agreement, can be achieved through the use of interest rate swaps with a deemed risk up to the maximum amount of Credit Facility C. As of June 30, 2012, no interest rate swaps were in use by the Company.Any funds that are not drawn down under either Credit Facility A or B are classified as a CAD Standby Facility.									Advances under Credit Facility A may be in the form of : Advances denominated in CAD and bearing interest at the lender's floating rate for loans made in CAD plus a margin as defined by the BMO Credit Agreement, and/or Advances denominated in USD and bearing interest at the lender's floating rate for loan made in USD plus a margin as defined by the BMO Credit Agreement, and/or Issuances of a CAD Letter of Credit (maximum face value CAD 100,000), bearing interest at a floating margin rate as defined by the BMO Credit Agreement.	Advances under Credit Facility A may be in the form of : Advances denominated in CAD and bearing interest at the lender's floating rate for loans made in CAD plus a margin as defined by the BMO Credit Agreement, and/or Advances denominated in USD and bearing interest at the lender's floating rate for loan made in USD plus a margin as defined by the BMO Credit Agreement, and/or Issuances of a CAD Letter of Credit (maximum face value CAD 100,000), bearing interest at a floating margin rate as defined by the BMO Credit Agreement.	Advances under Credit Facility B may be in the form of: Advances denominated in CAD and bearing interest at the lender's floating rate for loans made in CAD plus a margin as defined by the BMO Credit Agreement (CAD 500,000 minimum and CAD 100,000 increments thereafter); Advances denominated in USD and bearing interest at the lender's floating rate for loans made in USD plus a margin as defined by the BMO Credit Agreement ($500,000 minimum and $100,000 increments thereafter); Advances denominated in USD and bearing interest at the LIBOR rate fixed for 1-6 months ($1 million minimum and $500,000 increments thereafter); and/or A Bankers Acceptance denominated in CAD and bearing interest at a fixed rate as defined by the BMO Credit Agreement for 1-6 months (CAD 1 million minimum and CAD 500,000 increments thereafter).	Advances under Credit Facility B may be in the form of: Advances denominated in CAD and bearing interest at the lender's floating rate for loans made in CAD plus a margin as defined by the BMO Credit Agreement (CAD 500,000 minimum and CAD 100,000 increments thereafter); Advances denominated in USD and bearing interest at the lender's floating rate for loans made in USD plus a margin as defined by the BMO Credit Agreement ($500,000 minimum and $100,000 increments thereafter); Advances denominated in USD and bearing interest at the LIBOR rate fixed for 1-6 months ($1 million minimum and $500,000 increments thereafter); and/or A Bankers Acceptance denominated in CAD and bearing interest at a fixed rate as defined by the BMO Credit Agreement for 1-6 months (CAD 1 million minimum and CAD 500,000 increments thereafter).
Borrowing covenants	Senior Funded Debt to EBITDA Ratio as defined by the BMO Credit Agreement may not be greater than 3.00:1.00; Fixed Charge Coverage Ratio as defined by the BMO Credit Agreement may not be less than 1.20:1.00; CRA and CAL combined shareholder's equity may not be less than CAD 20 million; and Capital expenditures in any fiscal year may not exceed CAD 4.0 million in aggregate, without the lender's consent.