Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2013
Cash Flows from Operating Activities
Net income	$ 4,478	$ 3,063	$ 2,559
Adjustments to reconcile net income to net cash (used in) provided by operating activities
Depreciation	1,621	1,173	1,123
Amortization of intangible assets	1,232	876	680
Amortization of deferred financing costs	23	0	0
Provision for doubtful accounts receivable	53	338	207
Stock-based compensation	833	1,008	931
Deferred income taxes	94	1,836	(49)
(Gain) loss on sale of equipment	31	(10)	35
(Increases) decreases in:
Accounts receivable	640	(406)	(2,553)
Inventories	535	179	1,191
Prepaid expenses and other current assets	154	(221)	(130)
Income taxes refundable	0	254	(254)
Increase (decrease) in:
Accounts payable	1,105	(849)	845
Accrued expenses	602	(667)	603
Deferred revenue	(1,288)	(1,288)	(1,288)
Income taxes payable	(356)	380	(235)
Net cash provided by (used in) operating activities	9,757	5,666	3,665
Cash Flows from Investing Activities
Proceeds on the sale of equipment	1	18	55
Purchase of property and equipment	(1,225)	(922)	(550)
Acquisition of patents and other intangibles	(230)	(258)	(412)
Acquisitions, less cash acquired	(13,177)	(1,387)	(2,848)
Increase in cash value of life insurance	(12)	(11)	(3)
Net cash used in investing activities	(14,643)	(2,560)	(3,758)
Cash Flows from Financing Activities
Deferred financing costs	(102)	0	0
Proceeds from borrowings under the Term Loan Facility	2,750	0	0
Principal payments on long-term debt	(275)	0	0
Tax benefit associated with the exercise of non-qualified stock options	16	38	72
Proceeds from the issuance of common stock	29	59	65
Net cash provided by financing activities	2,418	97	137
Foreign exchange rate effect on cash and cash equivalents	(1,064)	(230)	(254)
Net increase (decrease) in cash and cash equivalents	(3,532)	2,973	(210)
Cash and cash equivalents
Beginning	15,443	12,470	12,680
Ending	11,911	15,443	12,470
Cash paid for:
Interest	47	19	28
Income taxes (received) paid	1,589	(1,009)	1,568
Supplemental Schedule of Non-cash Investing and Financing Activity
Purchase of equipment included in accounts payable	$ 124	$ 17	$ 120