Accounts payable

20,766

28,404

Accrued professional, board and other fees

1,225

3,239

Accrued wages

2,609

2,723

Warranty payable

132

1,277

Accrued income, property and sales taxes payable

2,285

2,780

Accrued purchases

2,387

3,343

Other accrued expenses

3,151

2,607

Grant liabilities

3,090

2,869

Current portion of financing lease liabilities

-

42

Total accounts payable, accrued expenses and other current liabilities

35,645

47,284