6. Supplementary Balance Sheet Information

Accrued Expenses and Current Portion of Other Long-Term Liabilities - Accrued expenses and current portion of other long-term liabilities are summarized as follows:



	2017		2016
Property, payroll, and other taxes payable	$	21,261,924	$	18,883,819
Salaries, wages, and bonuses payable		28,369,250		28,159,164
Self-insurance liabilities:
Employee group insurance		4,893,855		5,807,558
Workers’ compensation insurance		5,387,235		5,929,533
General liability insurance		3,045,020		2,345,956
Interest		13,175,382		12,406,614
Other		6,319,191		2,782,962
Total accrued expenses and current portion of other long-term liabilities	$	82,451,857	$	76,315,606

Employee insurance expense, including workers’ compensation and medical care benefits, net of employee contributions, totaled $33.1 million, $34.5 million and $33.6 million for fiscal years 2017, 2016 and 2015, respectively.

Other Long-Term Liabilities - Other long-term liabilities are summarized as follows:



	2017		2016
Advance payments on purchases contracts	$	3,185,034	$	1,624,792
Deferred lease expense		1,913,811		1,884,501
Nonqualified investment plan liability		13,303,318		10,692,707
Self-insurance liabilities:
Workers’ compensation insurance		17,147,541		18,101,931
General liability insurance		4,663,347		3,700,263
Other		1,867,015		1,655,285
Other long-term liabilities		42,080,066		37,659,479
Less current portion		967,518		883,892
Total other long-term liabilities	$	41,112,548	$	36,775,587

Advance Payments on Purchases Contracts - The Company has entered into agreements with suppliers whereby payment is received in advance and earned based on purchases of product from these suppliers in the future. The unearned portion, included in other long-term liabilities, will be recognized in the results of operations in accordance with the terms of the contract.