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Amount of transactions with related party during the financial reporting period.

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Related Party Transactions - Additional Information (Detail)			3 Months Ended		6 Months Ended
	Apr. 30, 2019 USD ($) Installment	Dec. 29, 2015 USD ($) $ / shares shares	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	May 23, 2018 USD ($) $ / shares shares
Related Party Transaction [Line Items]
Credit facility outstanding		$ 5,000,000
Future minimum lease payments			$ 153,000		$ 153,000
Total rental payments made under lease agreement			$ 153,000	$ 53,000	$ 299,000	$ 107,000
Comstock Growth Fund II, L.C. [Member] \| Notes Payable, Other Payables [Member] \| Note Exchange Agreement [Member]
Related Party Transaction [Line Items]
Credit facility outstanding							$ 3,700,000
Stonehenge [Member]
Related Party Transaction [Line Items]
Original principal amount		4,500,000
Principal amount outstanding plus all accrued but unpaid interest		$ 3,900,000
Stonehenge [Member] \| Series B Preferred Stock [Member]
Related Party Transaction [Line Items]
Shares issued upon conversion of debt \| shares		772,210
Preferred stock par value per share \| $ / shares		$ 0.01
Preferred stock redemption price \| $ / shares		$ 5.00
Cumulative, compounded, preferred return rate		8.75%
Comstock Growth Fund II, L.C. [Member] \| Comstock Growth Fund II, L.C. [Member]
Related Party Transaction [Line Items]
Debt instrument, initial principal amount		$ 5,000,000
Series C- Non Convertible Preferred Stock [Member] \| Comstock Growth Fund II, L.C. [Member] \| Notes Payable, Other Payables [Member] \| Note Exchange Agreement [Member]
Related Party Transaction [Line Items]
Preferred stock par value per share \| $ / shares							$ 0.01
Convertible preferred shares issued upon conversion \| shares							738,390
Series C Preferred Stock [Member] \| Comstock Growth Fund II, L.C. [Member] \| Notes Payable, Other Payables [Member] \| Note Exchange Agreement [Member]
Related Party Transaction [Line Items]
Preferred stock liquidation value per share \| $ / shares							$ 5.00
Business Management Agreement [Member] \| Investors X [Member]
Related Party Transaction [Line Items]
Aggregate fee payable	$ 937,500
Number of installments of fee payment \| Installment	15
Aggregate fee payable, frequency of periodic payment					quarterly
Fee payable in installments	$ 62,500