Credit Arrangements Loan and Security Agreement (Details)				3 Months Ended		6 Months Ended
	Jan. 25, 2019 USD ($)	May 11, 2018 USD ($) $ / shares shares	Dec. 14, 2015 USD ($)	Mar. 31, 2019 USD ($) $ / shares	Mar. 31, 2018 USD ($)	Mar. 31, 2019 USD ($) $ / shares	Mar. 31, 2018 USD ($)	Apr. 25, 2019 $ / shares shares	Apr. 04, 2019 USD ($)	Mar. 13, 2019 USD ($)	Feb. 28, 2019 USD ($) $ / shares shares	Feb. 14, 2019 USD ($) $ / shares	Jan. 31, 2019 USD ($) $ / shares	Jan. 04, 2019 USD ($)	Nov. 08, 2018 USD ($)	Sep. 30, 2018 USD ($) $ / shares	Apr. 16, 2018 $ / shares shares
Line of Credit Facility [Line Items]
Common stock, par value (usd per share) | $ / shares				$ 0.01		$ 0.01										$ 0.01	$ 2.15
Number of securities called by warrants or rights (in shares) | shares											728,155						232,558
Exercise price of warrant (in usd per share) | $ / shares											$ 1.18						$ 2.50
Derivative liability, at fair value				$ (10,000)		$ (10,000)										$ (14,000)
Gain on derivative						7,000	$ 9,000
Interest expense, net				(227,000)	$ (103,000)	(381,000)	$ (195,000)
Accretion Expense				13,000		13,000
Warrant
Line of Credit Facility [Line Items]
PFG debt, net of discount				674,000		$ 674,000
Debt Instrument, Term						5 years
Subordinated Promissory Notes [Member]
Line of Credit Facility [Line Items]
PFG debt, net of discount				3,300,000		$ 3,300,000
Debt Instrument, Term						5 years
Partners for Growth IV, L.P. | Tranche One
Line of Credit Facility [Line Items]
PFG debt, net of discount		$ 2,000,000
Partners for Growth IV, L.P. | Disbursement of Tranche 2, net of discount
Line of Credit Facility [Line Items]
PFG debt, net of discount		500,000													$ 500,000
Partners For Growth V, L.P. [Member]
Line of Credit Facility [Line Items]
PFG debt, net of discount		$ 2,500,000
Number of securities called by warrants or rights (in shares) | shares		66,000
Exercise price of warrant (in usd per share) | $ / shares		$ 2.57
Derivative, Loss on Derivative				8,000
Gain on derivative						$ 15,000
Debt instrument fee		$ 150,000
Interest expense, net				(13,000)		(25,000)
Partners For Growth V, L.P. [Member] | Warrant
Line of Credit Facility [Line Items]
Derivative liability, at fair value				(10,000)		$ (10,000)
Partners For Growth V, L.P. [Member] | Warrant Debt
Line of Credit Facility [Line Items]
Debt discount accreted as interest expense			$ 153,000
Debt interest expense term						5 years
Partners For Growth V, L.P. [Member] | PFG Debt
Line of Credit Facility [Line Items]
Debt interest expense term						3 years
Amortization of debt discount				$ 13,000		$ 27,000
Partners For Growth V, L.P. [Member] | Tranche One
Line of Credit Facility [Line Items]
PFG debt, net of discount		$ 2,000,000
Debt instrument, interest rate, percentage		10.75%
Prepayment fee		1.00%
Secured Debt | Promissory Note
Line of Credit Facility [Line Items]
Face amount of debt												$ 1,000,000	$ 1,000,000	$ 1,000,000
Common stock, par value (usd per share) | $ / shares												$ 1.30	$ 1.30
Debt instrument, interest rate, percentage												9.25%	9.25%	9.25%
Subordinated note payable | Senior Secured Promissory Notes
Line of Credit Facility [Line Items]
Face amount of debt	$ 5,000,000
Debt instrument, interest rate, percentage				9.25%		9.25%
Liability				$ 3,300,000		$ 3,300,000										0
Monthly installment amount	100,000
Minimum qualifying revenue	$ 13,000,000
Subordinated note payable | Initial Notes [Member]
Line of Credit Facility [Line Items]
Face amount of debt											$ 3,000,000
Subordinated note payable | Additional Notes, Tranche One [Member]
Line of Credit Facility [Line Items]
Face amount of debt										$ 1,000,000	$ 1,000,000
Subordinated note payable | January and March | Senior Secured Promissory Notes
Line of Credit Facility [Line Items]
Minimum coverage ratio	0.7
Subordinated note payable | February and May | Senior Secured Promissory Notes
Line of Credit Facility [Line Items]
Minimum coverage ratio	0.9
Subsequent Event
Line of Credit Facility [Line Items]
Number of securities called by warrants or rights (in shares) | shares								728,155
Exercise price of warrant (in usd per share) | $ / shares								$ 1.18
Subsequent Event | Subordinated note payable | Additional Notes, Tranche Two [Member]
Line of Credit Facility [Line Items]
Face amount of debt									$ 1,000,000
Debt Instrument, Redemption, Period One [Member] | Partners For Growth V, L.P. [Member]
Line of Credit Facility [Line Items]
Exchange price of warrants (in usd per share)		$ 250,000
Level 3 | PFG V Debt, Net of Discount
Line of Credit Facility [Line Items]
Debt instrument, interest rate, percentage				10.75%		10.75%
Disbursement of Tranche 2, net of discount			$ 2,300,000
Amortization and accretion expense						$ 51,000
Liability				$ 2,094,000		2,094,000										1,905,000
Level 3 | Warrant Debt
Line of Credit Facility [Line Items]
Liability				138,000		138,000
Level 3 | Warrant Debt, PFG V
Line of Credit Facility [Line Items]
Amortization and accretion expense				5,000		9,000
Liability				$ 138,000		$ 138,000										$ 103,000
Prime Rate | Subordinated note payable | Senior Secured Promissory Notes
Line of Credit Facility [Line Items]
Basis spread on variable rate	4.00%