Debt (Details)		6 Months Ended
	May 09, 2018 USD ($) tranche D $ / shares	Jun. 30, 2018 USD ($)
Debt
Aggregate purchase price in cash		$ 2,000,000
Total debt discount		225,000
Securities Purchase Agreement | IRT | Secured convertible promissory note
Debt
Aggregate principal amount	$ 3,325,000
Aggregate purchase price in cash	2,000,000
Original issue discount	300,000
Initial principal amount	2,225,000
Original issue discount of initial principal balance	200,000
Debt issuance costs	$ 25,000	$ 200,000
Bearing interest rate (as percent)	10.00%
Maximum Monthly Redemption Amount	$ 500,000
Stock price (in dollars per share) | $ / shares	$ 1.60
Redemption price (as percent)	80.00%
Number of consecutive trading days (in days) | D	20
Securities Purchase Agreement | IRT | Secured convertible promissory note | Maximum
Debt
Redemption price per share | $ / shares	$ 1.60
Securities Purchase Agreement | IRT | Secured convertible promissory note | Investor Notes
Debt
Aggregate principal amount	$ 1,000,000
Number of tranches | tranche	4
Periodic payment of debt	$ 250,000