Basis of presentation (Details) - USD ($) $ in Thousands			3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 16, 2021	Oct. 16, 2020	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	May 01, 2020	Mar. 13, 2020
Basis of presentation [Abstract]
Proceeds from Public Offering	$ 11,200	$ 8,700			$ 0	$ 12,214
Shares sold in Public Offering (in shares)	842,375	1,380,000	0	842,000	0	842,000
Basis of presentation [Abstract]
Gain from employee retention credit							$ 1,500
Employee retention credit receivable			$ 1,500		$ 1,500		$ 1,500
PPP Loan [Member]
Basis of presentation [Abstract]
Face amount								$ 2,200
Sienna Credit Facility [Member]
Basis of presentation [Abstract]
Maximum borrowing capacity									$ 10,000