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13. WARRANTS

3 Months Ended

Dec. 31, 2018

Transactions involving our equity-classified warrants are summarized as follows:

	Number of shares		Weighted-average exercise price		Weighted- average remaining contractual term (in years)		Aggregate intrinsic value (in thousands)
Outstanding at September 30, 2018		312,176	$	6.84
Issued		51,429		4.375
Exercised		-		-
Forfeited		-		-
Outstanding at December 31, 2018		363,605	$	6.49		3.49	$	—

Exercisable at December 31, 2018		363,605	$	6.49		3.49	$	—

The following table summarizes outstanding common stock purchase warrants as of December 31, 2018:

	Number of shares		Weighted-average exercise price		Expiration

Exercisable at $7.80 per share		141,676	$	7.80	September 2021
Exercisable at $4.00 per share		70,500	$	4.00	September 2022
Exercisable at $7.50 per share		100,000	$	7.50	October 2022
Exercisable at $4.375 per share		51,429	$	4.375	September 2023
		363,605		6.49