3. FAIR VALUE MEASUREMENTS (Details) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Beginning balance	$ 634,000	$ 834,000	$ 834,000
Payout of deferred consideration		(200,000)	(200,000)
Decrease in fair value of earn-out consideration	(350,000)
Increase in fair value of deferred cash consideration	9,000
Ending balance	293,000	634,000	293,000
Level 1 [Member]
Beginning balance	0	0	0
Payout of deferred consideration		0
Decrease in fair value of earn-out consideration	0
Increase in fair value of deferred cash consideration	0
Ending balance	0	0	0
Level 2 [Member]
Beginning balance	0	0	0
Payout of deferred consideration		0
Decrease in fair value of earn-out consideration	0
Increase in fair value of deferred cash consideration	0
Ending balance	0	0	0
Level 3 [Member]
Beginning balance	634,000	834,000	834,000
Payout of deferred consideration		(200,000)
Decrease in fair value of earn-out consideration	(350,000)
Increase in fair value of deferred cash consideration	9,000
Ending balance	$ 293,000	$ 634,000	$ 293,000