Correction of Immaterial Errors Statement of Equity (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity, beginning balance	$ 134,462	$ 140,425	$ 129,584
Net income	3,669	5,905	19,915
Stockholders' equity, ending balance	132,790	134,462	140,425
Timing and Recognition of Certain Transactions [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity, beginning balance	134,462
Stockholders' equity, ending balance		134,462
Timing and Recognition of Certain Transactions [Member] | As Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity, beginning balance	140,915	144,519	131,149
Net income		8,264	22,444
Stockholders' equity, ending balance		140,915	144,519
Timing and Recognition of Certain Transactions [Member] | Revision Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity, beginning balance	(6,453)	(4,094)	(1,565)
Net income		(2,359)	(2,529)
Stockholders' equity, ending balance		(6,453)	(4,094)
Retained Earnings [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity, beginning balance	115,004	109,099	89,184
Net income	3,669	5,905	19,915
Stockholders' equity, ending balance	118,673	115,004	109,099
Retained Earnings [Member] | Timing and Recognition of Certain Transactions [Member] | As Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity, beginning balance	121,457	113,193	90,749
Stockholders' equity, ending balance		121,457	113,193
Retained Earnings [Member] | Timing and Recognition of Certain Transactions [Member] | Revision Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Stockholders' equity, beginning balance	$ (6,453)	(4,094)	(1,565)
Stockholders' equity, ending balance		$ (6,453)	$ (4,094)