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Supplemental Information (Tables)
 12 Months Ended
Dec. 31, 2018
Disclosure Of Supplemental Information [Abstract]  
Components of Changes in Non-cash Working Capital Balances

Components of changes in non-cash working capital balances are as follows:

 

 

 

2018

 

 

2017

 

Accounts receivable

 

$

(32,709

)

 

$

(41,309

)

Inventory

 

 

(7,504

)

 

 

(3,902

)

Accounts payable and accrued liabilities

 

 

23,225

 

 

 

(30,158

)

 

 

$

(16,988

)

 

$

(75,369

)

Pertaining to:

 

 

 

 

 

 

 

 

Operations

 

$

(17,880

)

 

$

(67,380

)

Investments

 

$

892

 

 

$

(7,989

)
Components of Accounts Receivable

The components of accounts receivable are as follows:

 

 

 

2018

 

 

2017

 

Trade

 

$

264,589

 

 

$

178,433

 

Accrued trade

 

 

47,426

 

 

 

91,708

 

Prepaids and other

 

 

60,321

 

 

 

52,444

 

 

 

$

372,336

 

 

$

322,585

 
Components of Accounts Payable and Accrued Liabilities

The components of accounts payable and accrued liabilities are as follows:

 

 

 

2018

 

 

2017

 

Accounts payable

 

$

129,493

 

 

$

87,436

 

Accrued liabilities:

 

 

 

 

 

 

 

 

Payroll

 

 

73,682

 

 

 

58,550

 

Other

 

 

71,314

 

 

 

63,639

 

 

 

$

274,489

 

 

$

209,625

 
Summary of Operating and General and Administrative Expenses The following table presents operating and general and administrative expenses by nature:

 

 

2018

 

 

2017

 

Wages, salaries and benefits

 

$

728,101

 

 

$

580,482

 

Purchased materials, supplies and services

 

 

422,359

 

 

 

433,827

 

Share based compensation

 

 

15,598

 

 

 

1,934

 

 

 

$

1,166,058

 

 

$

1,016,243

 

Allocated to:

 

 

 

 

 

 

 

 

Operating expense

 

$

1,067,871

 

 

$

926,171

 

General and administrative

 

 

112,387

 

 

 

90,072

 

Other recoveries

 

 

(14,200

)

 

 

—

 

 

 

$

1,166,058

 

 

$

1,016,243