Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jan. 31, 2020	Jul. 31, 2019
Current assets:
Cash and cash equivalents	$ 2,252	$ 1,609
Trade accounts receivable, net of allowance for doubtful accounts of $0 at January 31, 2020 and July 31, 2019	1,032	1,133
Prepaid expenses	175	380
Other current assets	66	103
Total current assets	3,525	3,225
Property and equipment, net	2,941	3,396
Goodwill	2,164	2,266
Other assets	530	120
Total assets	9,160	9,007
Current liabilities:
Trade accounts payable	310	217
Insurance premium loan payable	63	141
Accrued expenses and other current liabilities	1,094	1,172
Deferred revenues	856	517
Total current liabilities	2,323	2,047
Other liabilities	183
Total liabilities	2,506	2,047
Commitments and contingencies (Notes 8 and 12)
Stockholders' equity:
Preferred stock, $.01 par value; authorized shares-2,400; no shares issued
Additional paid-in capital	23,705	23,131
Accumulated other comprehensive loss	(1,136)	(985)
Accumulated deficit	(15,944)	(15,243)
Treasury stock, 40 shares at January 31, 2020 and 22 shares at July 31, 2019, at cost	(76)	(47)
Total stockholders' equity	6,654	6,960
Total liabilities and stockholders' equity	9,160	9,007
Class A common stock
Stockholders' equity:
Common stock value	5	5
Total stockholders' equity	5	5
Class B common stock
Stockholders' equity:
Common stock value	100	100
Total stockholders' equity	$ 100	$ 99