Cash Deposits and Other Assets (Tables)

9 Months Ended

Sep. 30, 2017

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Components of cash deposits and other assets

Components of cash deposits and other assets were as follows at the dates indicated (in thousands):

	September 30,		December 31,
	2017		2016
Amounts associated with liability insurance program:
Insurance collateral deposits	$	2,252	$	2,599
Excess loss fund	1,495		1,450
Accumulated interest income	777		812
Other amounts:
State collateral deposits	51		143
Materials and supplies	320		354
Other	37		171
Total	$	4,932	$	5,529