Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2016
Cash flows from operating activities:
Net income	$ (104)	$ 2,511	$ 154
Adjustments to reconcile net income to net cash provided by operating activities:
Impairment of long-lived assets	0	0	375
Depreciation and amortization	1,083	994	1,042
Provision for deferred income taxes	66	1,992	1,237
Share based compensation expense	127	69	28
Tax impact of share-based compensation	0	(6)	0
(Gain) loss on sale of assets and investment securities	17	(81)	135
Net recovery of contract adjustments	(830)	(1,178)	(910)
Net bad debt expense (recovery)	1,034	164	453
Changes in:
- contract receivables	5,266	572	7,723
- other current assets	155	(178)	(626)
- income tax receivable	353	134	(390)
- equity method investment	(595)	(158)	(150)
- other non-current assets	(822)	(485)	(5)
- accounts payable	(2,023)	259	(2,789)
- accrued payroll costs	228	(110)	(1,430)
- income taxes payable	(44)	(86)	38
- billings in excess of revenue	807	(78)	145
- other accrued liabilities	(490)	(43)	109
Net cash provided by operating activities	4,228	4,292	5,139
Cash flows from investing activities:
Acquisition of noncontrolling interest of subsidiaries	(27)	0	0
Purchase of property, building and equipment	(772)	(669)	(692)
Proceeds from sale of subsidiaries	0	75	150
Proceeds from sale of property, buildings and equipment	43	1,495	5
Proceeds from maturity of investments	0	0	26
Purchase of investment securities	(31)	(30)	(55)
Net cash (used in) provided by investing activities	(787)	871	(566)
Cash flows from financing activities:
Dividends paid	(1,721)	(1,720)	(2,066)
Proceeds from debt	0	200	6
Repayment of debt	(389)	(241)	(547)
Net borrowings (repayment) of lines of credit	(342)	39	(162)
Distributions to noncontrolling interests	(454)	(8)	(345)
Net cash used in financing activities	(2,906)	(1,730)	(3,114)
Effect of exchange rate changes on cash and cash equivalents	76	(228)	(232)
Net increase in cash, cash equivalents and restricted cash	611	3,205	1,227
Cash, cash equivalents and restricted cash at beginning of period	13,135	9,930	8,703
Cash, cash equivalents and restricted cash at end of period	13,746	13,135	9,930
Cash paid during the period for:
Interest	38	139	133
Income taxes	140	715	2,668
Supplemental disclosure of non-cash items:
Dividends declared and not paid	863	860	861
Proceeds from capital lease obligations	59	29	69
Sale of subsidiary (loans receivable)	0	0	75
Acquisition of noncontrolling interest of subsidiaries (equipment)	$ 26	$ 0	$ 0