Stockholders' Equity (Tables)

3 Months Ended

Oct. 31, 2019

Stockholders' Equity Note [Abstract]

Share-based Payment Arrangement, Cost by Plan [Table Text Block]

The amounts of share-based compensation expense recognized in the periods presented are as follows:

	Three months ended October 31,
	2019		2018
Stock options	$	218	$	232
Restricted stock		1		3
	$	219	$	235

Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

The following table sets forth the amount of expense related to share-based payment arrangements included in specific line items in the accompanying statements of operations:

	Three months ended October 31,
	2019		2018
Selling, general and administrative	$	219	$	235
	$	219	$	235

Share-based Payment Arrangement, Option, Activity [Table Text Block]

The following table summarizes stock option activity during the three month period ended October 31, 2019:

	Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term		Aggregate Intrinsic Value (000s)
Outstanding at July 31, 2019		2,351,040		$	4.53
Awarded		1,500			3.32
Exercised		—			—			$	—
Cancelled or expired		(7,999	)		5.54
Outstanding at end of period		2,344,541			4.52		2.6 years	$	252
Exercisable at end of period		1,334,565			5.16		1.3 years	$	—

Schedule of Nonvested Performance-based Units Activity [Table Text Block]

The following table summarizes PSU’s granted:

Grant Date	Total Grant	Fair Market Value At Grant Date (000s)
7/31/2018	32,000	$	141
1/3/2019	80,500	$	225