Restatement of Unaudited Condensed Consolidated Financial Statements, Condensed Consolidated Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended
Oct. 27, 2018	Oct. 28, 2017
Cash flows from operating activities [Abstract]
Net income (loss)	$ (115)	$ 688
Adjustments to reconcile net income to net cash provided by operating activities [Abstract]
Depreciation and amortization	277	260
Provision for deferred income taxes	32	(278)
Share based compensation expense	153	47
Net bad debt expense (recovery)	(19)	28
Changes in [Abstract]
- contract receivables	(1,204)	2,666
- other current assets	(945)	(508)
- income tax receivable	84	1,244
- equity method investment	(60)	(18)
- other non-current assets	282	14
- accounts payable	1,999	(168)
- accrued payroll costs	(624)	(784)
- income taxes payable	3	(5)
- customer deposits	226	1,002
- other accrued liabilities	43	35
Net cash provided by operating activities	154	4,223
Cash flows from investing activities [Abstract]
Purchase of property, building and equipment	(140)	(100)
Purchase of investment securities	(41)	(8)
Net cash used in investing activities	(179)	(108)
Cash flows from financing activities [Abstract]
Dividends paid	(863)	(860)
Repayment of debt		(239)
Net borrowings (repayment) of lines of credit	1	(162)
Distributions to noncontrolling interests	(4)	(49)
Net cash used in financing activities	(881)	(1,310)
Effect of exchange rate changes on cash and cash equivalents	35	10
Net increase (decrease) in cash, cash equivalents and restricted cash	(871)	2,815
Cash, cash equivalents and restricted cash at beginning of period	13,746	13,135
Cash, cash equivalents and restricted cash at end of period	$ 12,875	15,950
As Previously Reported [Member]
Cash flows from operating activities [Abstract]
Net income (loss)		648
Adjustments to reconcile net income to net cash provided by operating activities [Abstract]
Depreciation and amortization		270
Provision for deferred income taxes		(21)
Share based compensation expense		0
Net bad debt expense (recovery)		39
Changes in [Abstract]
- contract receivables		4,470
- other current assets		(692)
- income tax receivable		969
- equity method investment		0
- other non-current assets		20
- accounts payable		(1,298)
- accrued payroll costs		(776)
- income taxes payable		(7)
- customer deposits		836
- other accrued liabilities		35
Net cash provided by operating activities		4,493
Cash flows from investing activities [Abstract]
Purchase of property, building and equipment		(104)
Purchase of investment securities		(8)
Net cash used in investing activities		(112)
Cash flows from financing activities [Abstract]
Dividends paid		(860)
Repayment of debt		(239)
Net borrowings (repayment) of lines of credit		(377)
Distributions to noncontrolling interests		(49)
Net cash used in financing activities		(1,525)
Effect of exchange rate changes on cash and cash equivalents		22
Net increase (decrease) in cash, cash equivalents and restricted cash		2,878
Cash, cash equivalents and restricted cash at beginning of period		13,343
Cash, cash equivalents and restricted cash at end of period		16,221
Impact of GAC Deconsolidation [Member]
Cash flows from operating activities [Abstract]
Net income (loss)		(15)
Adjustments to reconcile net income to net cash provided by operating activities [Abstract]
Depreciation and amortization		(10)
Provision for deferred income taxes		(269)
Share based compensation expense		0
Net bad debt expense (recovery)		(11)
Changes in [Abstract]
- contract receivables		(489)
- other current assets		16
- income tax receivable		286
- equity method investment		(18)
- other non-current assets		(9)
- accounts payable		(8)
- accrued payroll costs		(8)
- income taxes payable		2
- customer deposits		166
- other accrued liabilities		0
Net cash provided by operating activities		(367)
Cash flows from investing activities [Abstract]
Purchase of property, building and equipment		4
Purchase of investment securities		0
Net cash used in investing activities		4
Cash flows from financing activities [Abstract]
Dividends paid		0
Repayment of debt		0
Net borrowings (repayment) of lines of credit		215
Distributions to noncontrolling interests		0
Net cash used in financing activities		215
Effect of exchange rate changes on cash and cash equivalents		(10)
Net increase (decrease) in cash, cash equivalents and restricted cash		(158)
Cash, cash equivalents and restricted cash at beginning of period		(208)
Cash, cash equivalents and restricted cash at end of period		(366)
Out of Period Adjustments [Member]
Cash flows from operating activities [Abstract]
Net income (loss)		55
Adjustments to reconcile net income to net cash provided by operating activities [Abstract]
Depreciation and amortization		0
Provision for deferred income taxes		12
Share based compensation expense		47
Net bad debt expense (recovery)		0
Changes in [Abstract]
- contract receivables		(1,315)
- other current assets		168
- income tax receivable		(11)
- equity method investment		0
- other non-current assets		3
- accounts payable		1,138
- accrued payroll costs		0
- income taxes payable		0
- customer deposits		0
- other accrued liabilities		0
Net cash provided by operating activities		97
Cash flows from investing activities [Abstract]
Purchase of property, building and equipment		0
Purchase of investment securities		0
Net cash used in investing activities		0
Cash flows from financing activities [Abstract]
Dividends paid		0
Repayment of debt		0
Net borrowings (repayment) of lines of credit		0
Distributions to noncontrolling interests		0
Net cash used in financing activities		0
Effect of exchange rate changes on cash and cash equivalents		(2)
Net increase (decrease) in cash, cash equivalents and restricted cash		95
Cash, cash equivalents and restricted cash at beginning of period		0
Cash, cash equivalents and restricted cash at end of period		$ 95

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Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.5)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130534-203044

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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

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- Definition

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.

+ References

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