CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
Nov. 02, 2019	Oct. 27, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 14,304	$ 13,180
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,724	9,300
Gain (loss) on sale of property, equipment and other assets	30	(93)
Share-based compensation	1,184	1,263
Contingent consideration adjustment	0	(956)
Equity in loss of affiliate	241	265
Provision for doubtful accounts	(535)	51
Deferred income taxes, net	(64)	(85)
Change in operating assets and liabilities	(34,156)	(368)
Net cash (used in) provided by operating activities	(10,272)	22,557
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(9,768)	(9,833)
Proceeds from sales of property, equipment and other assets	149	182
Purchases of marketable securities	0	(9,209)
Proceeds from sales or maturities of marketable securities	22,775	12,034
Purchases of and loans to equity investment	(896)	(854)
Acquisitions, net of cash acquired	0	2,250
Net cash provided by (used in) investing activities	12,260	(9,930)
CASH FLOWS FROM FINANCING ACTIVITIES:
Principal payments on long-term obligations	(1,931)	(431)
Dividends paid	(4,500)	(6,252)
Proceeds from exercise of stock options	0	57
Payments for common shares repurchased	1,682	0
Tax payments related to RSU issuances	199	246
Net cash used in financing activities	(8,312)	(6,872)
EFFECT OF EXCHANGE RATE CHANGES	(94)	73
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	(6,418)	5,828
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	35,742	29,755
End of period	29,324	35,583
Cash payments for:
Interest	117	84
Income taxes, net of refunds	1,051	954
Supplemental schedule of non-cash investing and financing activities:
Demonstration equipment transferred to inventory	0	97
Purchases of property and equipment included in accounts payable	1,469	2,348
Contributions of common stock under the ESPP	$ 1,577	$ 820

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585

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The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period.

+ References

No definition available.

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- Definition

The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

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- Definition

Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=SL79508275-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585

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Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

+ References

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

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- Definition

The fair value of stock issued in noncash financing activities.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586

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