Accounts receivable, net consists of the following (in thousands):


	March 31,
	2019		2018
Accounts receivable trade	$	64,530	$	62,494
Other receivables	2,197		1,904
	66,727		64,398
Less: Allowance for doubtful accounts	(591)		(1,015)
Accounts receivable, net	$	66,136	$	63,383


	March 31,
	2019		2018
Raw materials and supplies	$	20,267	$	21,855
Work in process	6,483		3,756
Finished goods	31,876		24,561
Total inventories	58,626		50,172
Less: LIFO reserve	(5,027)		(5,511)
Less: Obsolescence reserve	(2,170)		(1,687)
Inventories, net	$	51,429	$	42,974

Property, plant and equipment, net, consist of the following (in thousands):


	March 31,
	2019		2018
Land and improvements	$	3,106	$	3,365
Buildings and improvements	43,353		44,341
Plant, office and laboratory equipment	68,982		66,230
Construction in progress	3,746		2,504
	119,187		116,440
Less: Accumulated depreciation	(65,548)		(61,967)
Property, plant and equipment, net	$	53,639	$	54,473

Depreciation of property, plant and equipment was $7.5 million, $7.7 million and $7.5 million for the years ended March 31, 2019, 2018 and 2017, respectively. Of these amounts, cost of revenues includes $6.1 million, $5.6 million and $5.2 million, respectively.


	March 31,
	2019		2018
Property held for investment (a)	$	6,857	$	8,863
Deferred income taxes	—		7,636

Retirement assets in excess of benefit obligations	3,096		3,334
Other	1,012		4,125
Other assets	$	10,965	$	23,958

(a) As of March 31, 2019 and 2018, $5.9 million and $6.2 million in assets were held for sale, respectively, in the "Elimination and Other" segment.

Accrued and other current liabilities consist of the following (in thousands):


	March 31,
	2019		2018
Compensation and related benefits	$	17,354	$	12,839
Rebates and marketing agreements	4,631		2,892
Non-income taxes	675		741
Income taxes payable	750		768
Other accrued expenses	6,016		6,261
Accrued and other current liabilities	$	29,426	$	23,501

Other long-term liabilities consists of the following (in thousands):


	March 31,
	2019		2018
Deferred income taxes	$	3,256	$	2,360
Other	2,858		2,361
Other long-term liabilities	$	6,114	$	4,721