Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Oct. 29, 2016	Apr. 30, 2016
Series C Preferred Stock [Member]
Liabilities and Shareholders' Equity
Preferred stock, $1 par value - 1,000,000 shares authorized: Series C - 150,000 shares issued	$ 150	$ 150
Treasury stock, value	(5,100)	(5,100)
Treasury Stock, Common [Member]
Liabilities and Shareholders' Equity
Treasury stock, value	(12,900)	(12,900)
Cash and equivalents	150,488	105,577
Trade receivables - net	63,306	61,046
Inventories	50,092	47,922
Deferred income taxes net	3,793	4,454
Prepaid and other assets	3,437	4,672
Total current assets	271,116	223,671
Property, plant and equipment - net	65,027	61,932
Goodwill	13,145	13,145
Intangible assets	1,615	1,615
Other assets	5,088	5,135
Total assets	355,991	305,498
Accounts payable	43,486	49,391
Accrued liabilities	26,577	26,195
Income taxes payable	986	28
Total current liabilities	71,049	75,614
Deferred income taxes net	14,427	14,474
Other liabilities	9,235	9,258
Common stock, $.01 par value - 75,000,000 shares authorized; 50,595,034 shares issued (50,588,734 shares at April 30)	506	506
Additional paid-in capital	34,844	34,570
Retained earnings	244,332	190,733
Accumulated other comprehensive loss	(552)	(1,807)
Total shareholders' equity	261,280	206,152
Total liabilities and shareholders' equity	$ 355,991	$ 305,498

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.