Stock-based Compensation (Restricted stock award) (Details)	12 Months Ended
	Dec. 31, 2021 $ / shares shares
Shares
Outstanding at end of period (in shares)	30,000
Restricted Stock Awards [Member] | C3J Stock Plan 2016 [Member]
Shares
Outstanding at beginning of period (in shares)	322,756
Forfeited/Cancelled (in shares)	(1,047)
Vested and Issued as Common Stock (in shares)	(167,691)
Outstanding at end of period (in shares)	154,018
Weighted Avg Grant Date Fair Value
Outstanding at beginning of period (in dollars per share) | $ / shares	$ 19.55
Forfeited/Cancelled (in dollars per share) | $ / shares	6.89
Vested and Issued as Common Stock (in dollars per shares) | $ / shares	20.29
Outstanding at end of period (in dollars per share) | $ / shares	$ 27.49