Debt - Narrative (Details)							1 Months Ended			3 Months Ended			9 Months Ended		12 Months Ended
	Apr. 01, 2018 USD ($)	Jan. 01, 2018 USD ($)	Oct. 01, 2017 USD ($)	Sep. 30, 2017 USD ($) shares	Jul. 31, 2017 USD ($) $ / shares shares	Jul. 28, 2017 USD ($) shares	Nov. 13, 2017 USD ($)	Jul. 31, 2017 USD ($) $ / shares shares	Jun. 30, 2017 USD ($) shares	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($) shares	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) shares	Sep. 30, 2016 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Jul. 27, 2017 USD ($) shares	Jul. 06, 2017	Dec. 31, 2016 USD ($) shares
Debt Instrument [Line Items]
Long-term debt				$ 1,788,000							$ 1,788,000		$ 1,788,000						$ 10,660,000
Extinguishment of debt and accrued interest, net of new borrowings					$ 9,362,000
Reduction to shares of common stock outstanding (in shares) | shares					404,587
Gain on debt extinguishment											9,045,000	$ 0	9,045,000	$ 0
Write-off unamortized discount, debt recapitalization											$ 89,000		89,000
Repurchase of common stock (in shares) | shares					404,587
Repurchase of common stock, value					$ 121,376								$ 2,325,000
Stock price (in dollars per share) | $ / shares					$ 0.30			$ 0.30
Common stock, shares outstanding (in shares) | shares				36,130,000		36,130,253					36,130,000		36,130,000				36,534,840		36,455,000
Payment for debt extinguishment or debt prepayment cost, cash paid on hand					$ 350,000
Proceeds from issuance of debt					$ 2,200,000
Debt and accrued interest																	$ 11,562,260
Extinguishment of debt and accrued interest						$ 11,562,260
Shares of common stock issued in connection with the SRS Note Exchange (in shares) | shares					7,306,930	7,306,930
Value of common stock issued				$ 4,000							$ 4,000		$ 4,000						$ 4,000
Common stock, shares issued (in shares) | shares				36,782,000							36,782,000		36,782,000						36,659,000
Principal payment made													$ 341,000	400,000
Cash paid during the period for interest													777,000	841,000
Total borrowings				$ 2,096,000		$ 2,200,000					$ 2,096,000		$ 2,096,000
Interest expense											$ 60,000
Ownership percentage in subsidiary				100.00%							100.00%		100.00%
Warrants exercised | shares				0							0		0
Unamortized debt discount				$ 308,000							$ 308,000		$ 308,000						$ 125,000
Amortization of debt discount											28,000	$ 18,000	64,000	$ 54,000
Western Alliance Bank A/R Revolver
Debt Instrument [Line Items]
Proceeds from issuance of debt					$ 500,000
Total current borrowing capacity (up to)					$ 1,500,000			$ 1,500,000
Borrowing base of eligible accounts receivable					0.85			0.85
Principal payment made											100,000
Additional availability				49,000							49,000		49,000
Total borrowings				$ 1,000,000							1,000,000		1,000,000						0
Bridge Bank Loan Agreement Non-Formula Borrowings
Debt Instrument [Line Items]
Proceeds from issuance of debt					$ 600,000
Total current borrowing capacity (up to)					600,000			$ 600,000
Installment payment due October 1, 2017					400,000
Installment payment due January 1, 2018					200,000
Installment payment due April 1, 2018					$ 0
Interest rate during the period				6.00%
Bridge Bank Loan Agreement Non-Formula Borrowings | Prime Rate
Debt Instrument [Line Items]
Basis spread on variable rate					1.75%
Prime rate, floor					4.00%
Bridge Bank Loan Agreement Non-Formula Borrowings | Scenario, Forecast
Debt Instrument [Line Items]
Cash payment, payment for debt extinguishment	$ 200,000	$ 200,000
Bridge Bank Loan Agreement Non-Formula Borrowings | Subsequent Event
Debt Instrument [Line Items]
Principal payment made			$ 200,000
Western Alliance Bank
Debt Instrument [Line Items]
Proceeds from issuance of debt					$ 1,100,000
Debt covenant, minimum unrestricted cash Amount					200,000			$ 200,000
Total borrowings						1,100,000
Western Alliance Bank | Subsequent Event
Debt Instrument [Line Items]
Principal payment made							$ 200,000
Super G Capital
Debt Instrument [Line Items]
Proceeds from issuance of debt					1,100,000
Principal payment made											4,000
Monthly installment payment for first three months following closing					33,000
Monthly installment payment for months four through twenty-four					68,600
Total payments					$ 1,540,000
Cash paid during the period for interest											46,000
Total borrowings				$ 1,096,000		1,100,000					1,096,000		1,096,000						0
Warrants issued (in shares) | shares					550,000			550,000
Exercise price for outstanding warrants (in dollars per share) | $ / shares					$ 0.30			$ 0.30
Warrants, term period					3 years
Warrant, profit over the term, or cash exit fee implemented (at least)					$ 165,000
Change to the fair value of warrant liability											0		0
Super G Capital | Warrant
Debt Instrument [Line Items]
Fair value of warrant recorded as derivative liability				165,000							165,000		165,000
Super G Capital | Scenario, Forecast
Debt Instrument [Line Items]
Total payments										$ 152,000						$ 823,000
Expected periodic interest payments										$ 88,000					$ 46,000	$ 246,000
Western Alliance Bank And Super G Capital
Debt Instrument [Line Items]
Unamortized debt discount				308,000	335,000	335,000		$ 335,000			308,000		308,000
Debt issuance costs					170,000			170,000
Warrants issued					165,000			165,000
Amortization of debt discount											28,000		27,000
Notes Payable, Other Payables | SRS Note
Debt Instrument [Line Items]
Long-term debt					0			0
Interest rate																		15.00%
Debt and accrued interest									$ 2,530,000
Principal									1,785,000
Accrued interest									$ 745,000								777,568
Waiver of final installment, number of days									60 days
Extinguishment of debt and accrued interest					$ 2,562,000
Extinguishment of debt, accrued interest						$ 777,568		$ 32,000
Total borrowings				0							0		0				1,784,692		1,785,000
Amortization of debt discount											36,000		36,000
President and CEO | Notes Payable, Other Payables | SRS Note
Debt Instrument [Line Items]
Interest in note payable, percentage					27.30%			27.30%	27.30%
Value of common stock issued					$ 699,528			$ 699,528
Common stock, shares issued (in shares) | shares					1,806,087			1,806,087
Common stock, shares issued, price per share (in dollars per share) | $ / shares					$ 0.387			$ 0.387
Main Street Term Loan
Debt Instrument [Line Items]
Repurchase of common stock (in shares) | shares					7,711,517	7,711,517
Main Street Term Loan
Debt Instrument [Line Items]
Common stock, shares outstanding (in shares) | shares									7,711,517
Main Street Term Loan | Term Loan
Debt Instrument [Line Items]
Long-term debt					$ 0			$ 0
Extinguishment of debt and accrued interest, net of new borrowings					9,000,000
Outstanding borrowings									$ 9,000,000
Interest rate									12.00%
Common shares owned by stockholder, percentage									21.00%
Cash payment, payment for debt extinguishment					$ 2,550,000
Total borrowings				$ 0							0		0				$ 9,000,000		$ 9,000,000
Amortization of debt discount											$ 0		$ 0